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</div> <div class="control"> <button class="button is-small is-link">Go</button> </div> </div> </form> </div> </div> <nav class="pagination is-small is-centered breathe-horizontal" role="navigation" aria-label="pagination"> <a href="" class="pagination-previous is-invisible">Previous </a> <a href="/search/?searchtype=author&query=Finocchiaro%2C+P&start=50" class="pagination-next" >Next </a> <ul class="pagination-list"> <li> <a href="/search/?searchtype=author&query=Finocchiaro%2C+P&start=0" class="pagination-link is-current" aria-label="Goto page 1">1 </a> </li> <li> <a href="/search/?searchtype=author&query=Finocchiaro%2C+P&start=50" class="pagination-link " aria-label="Page 2" aria-current="page">2 </a> </li> </ul> </nav> <ol class="breathe-horizontal" start="1"> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2412.01332">arXiv:2412.01332</a> <span> [<a href="https://arxiv.org/pdf/2412.01332">pdf</a>, <a href="https://arxiv.org/format/2412.01332">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> </div> <p class="title is-5 mathjax"> Radiative neutron capture cross section of $^{242}$Pu measured at n_TOF-EAR1 in the unresolved resonance region up to 600 keV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Lerendegui-Marco%2C+J">J. Lerendegui-Marco</a>, <a href="/search/nucl-ex?searchtype=author&query=Guerrero%2C+C">C. Guerrero</a>, <a href="/search/nucl-ex?searchtype=author&query=Mendoza%2C+E">E. Mendoza</a>, <a href="/search/nucl-ex?searchtype=author&query=Quesada%2C+J+M">J. M. Quesada</a>, <a href="/search/nucl-ex?searchtype=author&query=Eberhardt%2C+K">K. Eberhardt</a>, <a href="/search/nucl-ex?searchtype=author&query=Junghans%2C+A+R">A. R. Junghans</a>, <a href="/search/nucl-ex?searchtype=author&query=Alcayne%2C+V">V. Alcayne</a>, <a href="/search/nucl-ex?searchtype=author&query=Babiano%2C+V">V. Babiano</a>, <a href="/search/nucl-ex?searchtype=author&query=Aberle%2C+O">O. Aberle</a>, <a href="/search/nucl-ex?searchtype=author&query=Andrzejewski%2C+J">J. Andrzejewski</a>, <a href="/search/nucl-ex?searchtype=author&query=Audouin%2C+L">L. Audouin</a>, <a href="/search/nucl-ex?searchtype=author&query=Becares%2C+V">V. Becares</a>, <a href="/search/nucl-ex?searchtype=author&query=Bacak%2C+M">M. Bacak</a>, <a href="/search/nucl-ex?searchtype=author&query=Balibrea-Correa%2C+J">J. Balibrea-Correa</a>, <a href="/search/nucl-ex?searchtype=author&query=Barbagallo%2C+M">M. Barbagallo</a>, <a href="/search/nucl-ex?searchtype=author&query=Barros%2C+S">S. Barros</a>, <a href="/search/nucl-ex?searchtype=author&query=Becvar%2C+F">F. Becvar</a>, <a href="/search/nucl-ex?searchtype=author&query=Beinrucker%2C+C">C. Beinrucker</a>, <a href="/search/nucl-ex?searchtype=author&query=Berthoumieux%2C+E">E. Berthoumieux</a>, <a href="/search/nucl-ex?searchtype=author&query=Billowes%2C+J">J. Billowes</a>, <a href="/search/nucl-ex?searchtype=author&query=Bosnar%2C+D">D. Bosnar</a>, <a href="/search/nucl-ex?searchtype=author&query=Brugger%2C+M">M. Brugger</a>, <a href="/search/nucl-ex?searchtype=author&query=Caama%C3%B1o%2C+M">M. Caama帽o</a>, <a href="/search/nucl-ex?searchtype=author&query=Calvi%C3%B1o%2C+F">F. Calvi帽o</a>, <a href="/search/nucl-ex?searchtype=author&query=Calviani%2C+M">M. Calviani</a> , et al. (111 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2412.01332v1-abstract-short" style="display: inline;"> The design of fast reactors burning MOX fuels requires accurate capture and fission cross sections. For the particular case of neutron capture on 242Pu, the NEA recommends that an accuracy of 8-12% should be achieved in the fast energy region (2 keV-500 keV) compared to their estimation of 35% for the current uncertainty. Integral irradiation experiments suggest that the evaluated cross section of… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2412.01332v1-abstract-full').style.display = 'inline'; document.getElementById('2412.01332v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2412.01332v1-abstract-full" style="display: none;"> The design of fast reactors burning MOX fuels requires accurate capture and fission cross sections. For the particular case of neutron capture on 242Pu, the NEA recommends that an accuracy of 8-12% should be achieved in the fast energy region (2 keV-500 keV) compared to their estimation of 35% for the current uncertainty. Integral irradiation experiments suggest that the evaluated cross section of the JEFF-3.1 library overestimates the 242Pu(n,纬) cross section by 14% in the range between 1 keV and 1 MeV. In addition, the last measurement at LANSCE reported a systematic reduction of 20-30% in the 1-40 keV range relative to the evaluated libraries and previous data sets. In the present work this cross section has been determined up to 600 keV in order to solve the mentioned discrepancies. A 242Pu target of 95(4) mg enriched to 99.959% was irradiated at the n TOF-EAR1 facility at CERN. The capture cross section of 242Pu has been obtained between 1 and 600 keV with a systematic uncertainty (dominated by background subtraction) between 8 and 12%, reducing the current uncertainties of 35% and achieving the accuracy requested by the NEA in a large energy range. The shape of the cross section has been analyzed in terms of average resonance parameters using the FITACS code as implemented in SAMMY, yielding results compatible with our recent analysis of the resolved resonance region.The results are in good agreement with the data of Wisshak and K盲ppeler and on average 10-14% below JEFF-3.2 from 1 to 250 keV, which helps to achieve consistency between integral experiments and cross section data. At higher energies our results show a reasonable agreement within uncertainties with both ENDF/B-VII.1 and JEFF-3.2. Our results indicate that the last experiment from DANCE underestimates the capture cross section of 242Pu by as much as 40% above a few keV. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2412.01332v1-abstract-full').style.display = 'none'; document.getElementById('2412.01332v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 2 December, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">20 pages, 19 figures, submitted to Phys. Rev. C</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2411.18969">arXiv:2411.18969</a> <span> [<a href="https://arxiv.org/pdf/2411.18969">pdf</a>, <a href="https://arxiv.org/format/2411.18969">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> </div> <p class="title is-5 mathjax"> Towards a new generation of solid total-energy detectors for neutron-capture time-of-flight experiments with intense neutron beams </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Balibrea-Correa%2C+J">J. Balibrea-Correa</a>, <a href="/search/nucl-ex?searchtype=author&query=Babiano-Suarez%2C+V">V. Babiano-Suarez</a>, <a href="/search/nucl-ex?searchtype=author&query=Lerendegui-Marco%2C+J">J. Lerendegui-Marco</a>, <a href="/search/nucl-ex?searchtype=author&query=Domingo-Pardo%2C+C">C. Domingo-Pardo</a>, <a href="/search/nucl-ex?searchtype=author&query=Ladarescu%2C+I">I. Ladarescu</a>, <a href="/search/nucl-ex?searchtype=author&query=Tarife%C3%B1o-Saldivia%2C+A">A. Tarife帽o-Saldivia</a>, <a href="/search/nucl-ex?searchtype=author&query=de+la+Fuente-Rosales%2C+G">G. de la Fuente-Rosales</a>, <a href="/search/nucl-ex?searchtype=author&query=Gameiro%2C+B">B. Gameiro</a>, <a href="/search/nucl-ex?searchtype=author&query=Zaitseva%2C+N">N. Zaitseva</a>, <a href="/search/nucl-ex?searchtype=author&query=Alcayne%2C+V">V. Alcayne</a>, <a href="/search/nucl-ex?searchtype=author&query=Cano-Ott%2C+D">D. Cano-Ott</a>, <a href="/search/nucl-ex?searchtype=author&query=Gonz%C3%A1lez-Romero%2C+E">E. Gonz谩lez-Romero</a>, <a href="/search/nucl-ex?searchtype=author&query=Mart%C3%ADnez%2C+T">T. Mart铆nez</a>, <a href="/search/nucl-ex?searchtype=author&query=Mendoza%2C+E">E. Mendoza</a>, <a href="/search/nucl-ex?searchtype=author&query=de+Rada%2C+A+P">A. P茅rez de Rada</a>, <a href="/search/nucl-ex?searchtype=author&query=del+Olmo%2C+J+P">J. Plaza del Olmo</a>, <a href="/search/nucl-ex?searchtype=author&query=S%C3%A1nchez-Caballero%2C+A">A. S谩nchez-Caballero</a>, <a href="/search/nucl-ex?searchtype=author&query=Casanovas%2C+A">A. Casanovas</a>, <a href="/search/nucl-ex?searchtype=author&query=Calvi%C3%B1o%2C+F">F. Calvi帽o</a>, <a href="/search/nucl-ex?searchtype=author&query=Valenta%2C+S">S. Valenta</a>, <a href="/search/nucl-ex?searchtype=author&query=Aberle%2C+O">O. Aberle</a>, <a href="/search/nucl-ex?searchtype=author&query=Altieri%2C+S">S. Altieri</a>, <a href="/search/nucl-ex?searchtype=author&query=Amaducci%2C+S">S. Amaducci</a>, <a href="/search/nucl-ex?searchtype=author&query=Andrzejewski%2C+J">J. Andrzejewski</a>, <a href="/search/nucl-ex?searchtype=author&query=Bacak%2C+M">M. Bacak</a> , et al. (112 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2411.18969v1-abstract-short" style="display: inline;"> Challenging neutron-capture cross-section measurements of small cross sections and samples with a very limited number of atoms require high-flux time-of-flight facilities. In turn, such facilities need innovative detection setups that are fast, have low sensitivity to neutrons, can quickly recover from the so-called $纬$-flash, and offer the highest possible detection sensitivity. In this paper, we… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2411.18969v1-abstract-full').style.display = 'inline'; document.getElementById('2411.18969v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2411.18969v1-abstract-full" style="display: none;"> Challenging neutron-capture cross-section measurements of small cross sections and samples with a very limited number of atoms require high-flux time-of-flight facilities. In turn, such facilities need innovative detection setups that are fast, have low sensitivity to neutrons, can quickly recover from the so-called $纬$-flash, and offer the highest possible detection sensitivity. In this paper, we present several steps toward such advanced systems. Specifically, we describe the performance of a high-sensitivity experimental setup at CERN n\_TOF EAR2. It consists of nine sTED detector modules in a compact cylindrical configuration, two conventional used large-volume C$_{6}$D$_{6}$ detectors, and one LaCl$_{3}$(Ce) detector. The performance of these detection systems is compared using $^{93}$Nb($n$,$纬$) data. We also developed a detailed \textsc{Geant4} Monte Carlo model of the experimental EAR2 setup, which allows for a better understanding of the detector features, including their efficiency determination. This Monte Carlo model has been used for further optimization, thus leading to a new conceptual design of a $纬$ detector array, STAR, based on a deuterated-stilbene crystal array. Finally, the suitability of deuterated-stilbene crystals for the future STAR array is investigaged experimentally utilizing a small stilbene-d12 prototype. The results suggest a similar or superior performance of STAR with respect to other setups based on liquid-scintillators, and allow for additional features such as neutron-gamma discrimination and a higher level of customization capability. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2411.18969v1-abstract-full').style.display = 'none'; document.getElementById('2411.18969v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 28 November, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2024. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2407.06377">arXiv:2407.06377</a> <span> [<a href="https://arxiv.org/pdf/2407.06377">pdf</a>, <a href="https://arxiv.org/format/2407.06377">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1140/epja/s10050-024-01453-w">10.1140/epja/s10050-024-01453-w <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement and analysis of the $^{246}$Cm and $^{248}$Cm neutron capture cross-sections at the EAR2 of the n TOF facility </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Alcayne%2C+V">V. Alcayne</a>, <a href="/search/nucl-ex?searchtype=author&query=Kimura%2C+A">A. Kimura</a>, <a href="/search/nucl-ex?searchtype=author&query=Mendoza%2C+E">E. Mendoza</a>, <a href="/search/nucl-ex?searchtype=author&query=Cano-Ott%2C+D">D. Cano-Ott</a>, <a href="/search/nucl-ex?searchtype=author&query=Aberle%2C+O">O. Aberle</a>, <a href="/search/nucl-ex?searchtype=author&query=%C3%81lvarez-Velarde%2C+F">F. 脕lvarez-Velarde</a>, <a href="/search/nucl-ex?searchtype=author&query=Amaducci%2C+S">S. Amaducci</a>, <a href="/search/nucl-ex?searchtype=author&query=Andrzejewski%2C+J">J. Andrzejewski</a>, <a href="/search/nucl-ex?searchtype=author&query=Audouin%2C+L">L. Audouin</a>, <a href="/search/nucl-ex?searchtype=author&query=B%C3%A9cares%2C+V">V. B茅cares</a>, <a href="/search/nucl-ex?searchtype=author&query=Babiano-Suarez%2C+V">V. Babiano-Suarez</a>, <a href="/search/nucl-ex?searchtype=author&query=Bacak%2C+M">M. Bacak</a>, <a href="/search/nucl-ex?searchtype=author&query=Barbagallo%2C+M">M. Barbagallo</a>, <a href="/search/nucl-ex?searchtype=author&query=Be%C4%8Dv%C3%A1%C5%99%2C+F">F. Be膷v谩艡</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellia%2C+G">G. Bellia</a>, <a href="/search/nucl-ex?searchtype=author&query=Berthoumieux%2C+E">E. Berthoumieux</a>, <a href="/search/nucl-ex?searchtype=author&query=Billowes%2C+J">J. Billowes</a>, <a href="/search/nucl-ex?searchtype=author&query=Bosnar%2C+D">D. Bosnar</a>, <a href="/search/nucl-ex?searchtype=author&query=Brown%2C+A">A. Brown</a>, <a href="/search/nucl-ex?searchtype=author&query=Busso%2C+M">M. Busso</a>, <a href="/search/nucl-ex?searchtype=author&query=Caama%C3%B1o%2C+M">M. Caama帽o</a>, <a href="/search/nucl-ex?searchtype=author&query=Caballero-Ontanaya%2C+L">L. Caballero-Ontanaya</a>, <a href="/search/nucl-ex?searchtype=author&query=Calvi%C3%B1o%2C+F">F. Calvi帽o</a>, <a href="/search/nucl-ex?searchtype=author&query=Calviani%2C+M">M. Calviani</a>, <a href="/search/nucl-ex?searchtype=author&query=Casanovas%2C+A">A. Casanovas</a> , et al. (108 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2407.06377v1-abstract-short" style="display: inline;"> The $^{246}$Cm(n,$纬$) and $^{248}$Cm(n,$纬$) cross-sections have been measured at the Experimental Area 2 (EAR2) of the n_TOF facility at CERN with three C$_6$D$_6$ detectors. This measurement is part of a collective effort to improve the capture cross-section data for Minor Actinides (MAs), which are required to estimate the production and transmutation rates of these isotopes in light water react… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2407.06377v1-abstract-full').style.display = 'inline'; document.getElementById('2407.06377v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2407.06377v1-abstract-full" style="display: none;"> The $^{246}$Cm(n,$纬$) and $^{248}$Cm(n,$纬$) cross-sections have been measured at the Experimental Area 2 (EAR2) of the n_TOF facility at CERN with three C$_6$D$_6$ detectors. This measurement is part of a collective effort to improve the capture cross-section data for Minor Actinides (MAs), which are required to estimate the production and transmutation rates of these isotopes in light water reactors and innovative reactor systems. In particular, the neutron capture in $^{246}$Cm and $^{248}$Cm open the path for the formation of other Cm isotopes and heavier elements such as Bk and Cf and the knowledge of (n,$纬$) cross-sections of these Cm isotopes plays an important role in the transport, transmutation and storage of the spent nuclear fuel. The reactions $^{246}$Cm(n,$纬$) and $^{248}$Cm(n,$纬$) have been the two first capture measurements analyzed at n_TOF EAR2. Until this experiment and two recent measurements performed at J-PARC, there was only one set of data of the capture cross-sections of $^{246}$Cm and $^{248}$Cm, that was obtained in 1969 in an underground nuclear explosion experiment. In the measurement at n_TOF a total of 13 resonances of $^{246}$Cm between 4 and 400 eV and 5 of $^{248}$Cm between 7 and 100 eV have been identified and fitted. The radiative kernels obtained for $^{246}$Cm are compatible with JENDL-5, but some of them are not with JENDL-4, which has been adopted by JEFF-3.3 and ENDF/B-VIII.0. The radiative kernels obtained for the first three $^{248}$Cm resonances are compatible with JENDL-5, however, the other two are not compatible with any other evaluation and are 20% and 60% larger than JENDL-5. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2407.06377v1-abstract-full').style.display = 'none'; document.getElementById('2407.06377v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 8 July, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2024. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2311.01365">arXiv:2311.01365</a> <span> [<a href="https://arxiv.org/pdf/2311.01365">pdf</a>, <a href="https://arxiv.org/format/2311.01365">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> </div> <p class="title is-5 mathjax"> Pushing the high count rate limits of scintillation detectors for challenging neutron-capture experiments </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Correa%2C+J+B">J. Balibrea Correa</a>, <a href="/search/nucl-ex?searchtype=author&query=Lerendegui-Marco%2C+J">J. Lerendegui-Marco</a>, <a href="/search/nucl-ex?searchtype=author&query=Babiano-Suarez%2C+V">V. Babiano-Suarez</a>, <a href="/search/nucl-ex?searchtype=author&query=Domingo-Pardo%2C+C">C. Domingo-Pardo</a>, <a href="/search/nucl-ex?searchtype=author&query=Ladarescu%2C+I">I. Ladarescu</a>, <a href="/search/nucl-ex?searchtype=author&query=Tarife%C3%B1o-Saldivia%2C+A">A. Tarife帽o-Saldivia</a>, <a href="/search/nucl-ex?searchtype=author&query=Alcayne%2C+V">V. Alcayne</a>, <a href="/search/nucl-ex?searchtype=author&query=Cano-Ott%2C+D">D. Cano-Ott</a>, <a href="/search/nucl-ex?searchtype=author&query=Gonz%C3%A1lez-Romero%2C+E">E. Gonz谩lez-Romero</a>, <a href="/search/nucl-ex?searchtype=author&query=Mart%C3%ADnez%2C+T">T. Mart铆nez</a>, <a href="/search/nucl-ex?searchtype=author&query=Mendoza%2C+E">E. Mendoza</a>, <a href="/search/nucl-ex?searchtype=author&query=de+Rada%2C+A+P">A. P茅rez de Rada</a>, <a href="/search/nucl-ex?searchtype=author&query=del+Olmo%2C+J+P">J. Plaza del Olmo</a>, <a href="/search/nucl-ex?searchtype=author&query=S%C3%A1nchez-Caballero%2C+A">A. S谩nchez-Caballero</a>, <a href="/search/nucl-ex?searchtype=author&query=Casanovas%2C+A">A. Casanovas</a>, <a href="/search/nucl-ex?searchtype=author&query=Calvi%C3%B1o%2C+F">F. Calvi帽o</a>, <a href="/search/nucl-ex?searchtype=author&query=Valenta%2C+S">S. Valenta</a>, <a href="/search/nucl-ex?searchtype=author&query=Aberle%2C+O">O. Aberle</a>, <a href="/search/nucl-ex?searchtype=author&query=Altieri%2C+S">S. Altieri</a>, <a href="/search/nucl-ex?searchtype=author&query=Amaducci%2C+S">S. Amaducci</a>, <a href="/search/nucl-ex?searchtype=author&query=Andrzejewski%2C+J">J. Andrzejewski</a>, <a href="/search/nucl-ex?searchtype=author&query=Bacak%2C+M">M. Bacak</a>, <a href="/search/nucl-ex?searchtype=author&query=Beltrami%2C+C">C. Beltrami</a>, <a href="/search/nucl-ex?searchtype=author&query=Bennett%2C+S">S. Bennett</a>, <a href="/search/nucl-ex?searchtype=author&query=Bernardes%2C+A+P">A. P. Bernardes</a> , et al. (109 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2311.01365v1-abstract-short" style="display: inline;"> One of the critical aspects for the accurate determination of neutron capture cross sections when combining time-of-flight and total energy detector techniques is the characterization and control of systematic uncertainties associated to the measuring devices. In this work we explore the most conspicuous effects associated to harsh count rate conditions: dead-time and pile-up effects. Both effects… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2311.01365v1-abstract-full').style.display = 'inline'; document.getElementById('2311.01365v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2311.01365v1-abstract-full" style="display: none;"> One of the critical aspects for the accurate determination of neutron capture cross sections when combining time-of-flight and total energy detector techniques is the characterization and control of systematic uncertainties associated to the measuring devices. In this work we explore the most conspicuous effects associated to harsh count rate conditions: dead-time and pile-up effects. Both effects, when not properly treated, can lead to large systematic uncertainties and bias in the determination of neutron cross sections. In the majority of neutron capture measurements carried out at the CERN n\_TOF facility, the detectors of choice are the C$_{6}$D$_{6}$ liquid-based either in form of large-volume cells or recently commissioned sTED detector array, consisting of much smaller-volume modules. To account for the aforementioned effects, we introduce a Monte Carlo model for these detectors mimicking harsh count rate conditions similar to those happening at the CERN n\_TOF 20~m fligth path vertical measuring station. The model parameters are extracted by comparison with the experimental data taken at the same facility during 2022 experimental campaign. We propose a novel methodology to consider both, dead-time and pile-up effects simultaneously for these fast detectors and check the applicability to experimental data from $^{197}$Au($n$,$纬$), including the saturated 4.9~eV resonance which is an important component of normalization for neutron cross section measurements. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2311.01365v1-abstract-full').style.display = 'none'; document.getElementById('2311.01365v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 2 November, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2023. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2310.14765">arXiv:2310.14765</a> <span> [<a href="https://arxiv.org/pdf/2310.14765">pdf</a>, <a href="https://arxiv.org/ps/2310.14765">ps</a>, <a href="https://arxiv.org/format/2310.14765">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Theory">nucl-th</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevC.108.044611">10.1103/PhysRevC.108.044611 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> One-neutron transfer reaction in the $^{18}$O + $^{48}$Ti collision at 275 MeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Sgouros%2C+O">O. Sgouros</a>, <a href="/search/nucl-ex?searchtype=author&query=Cutuli%2C+M">M. Cutuli</a>, <a href="/search/nucl-ex?searchtype=author&query=Cappuzzello%2C+F">F. Cappuzzello</a>, <a href="/search/nucl-ex?searchtype=author&query=Cavallaro%2C+M">M. Cavallaro</a>, <a href="/search/nucl-ex?searchtype=author&query=Carbone%2C+D">D. Carbone</a>, <a href="/search/nucl-ex?searchtype=author&query=Agodi%2C+C">C. Agodi</a>, <a href="/search/nucl-ex?searchtype=author&query=De+Gregorio%2C+G">G. De Gregorio</a>, <a href="/search/nucl-ex?searchtype=author&query=Gargano%2C+A">A. Gargano</a>, <a href="/search/nucl-ex?searchtype=author&query=Linares%2C+R">R. Linares</a>, <a href="/search/nucl-ex?searchtype=author&query=Brischetto%2C+G+A">G. A. Brischetto</a>, <a href="/search/nucl-ex?searchtype=author&query=Calvo%2C+D">D. Calvo</a>, <a href="/search/nucl-ex?searchtype=author&query=Lomeli%2C+E+R+C">E. R. Chavez Lomeli</a>, <a href="/search/nucl-ex?searchtype=author&query=Ciraldo%2C+I">I. Ciraldo</a>, <a href="/search/nucl-ex?searchtype=author&query=Delaunay%2C+F">F. Delaunay</a>, <a href="/search/nucl-ex?searchtype=author&query=Djapo%2C+H">H. Djapo</a>, <a href="/search/nucl-ex?searchtype=author&query=Eke%2C+C">C. Eke</a>, <a href="/search/nucl-ex?searchtype=author&query=Finocchiaro%2C+P">P. Finocchiaro</a>, <a href="/search/nucl-ex?searchtype=author&query=Fisichella%2C+M">M. Fisichella</a>, <a href="/search/nucl-ex?searchtype=author&query=Guazzelli%2C+M+A">M. A. Guazzelli</a>, <a href="/search/nucl-ex?searchtype=author&query=Hacisalihoglu%2C+A">A. Hacisalihoglu</a>, <a href="/search/nucl-ex?searchtype=author&query=Lubian%2C+J">J. Lubian</a>, <a href="/search/nucl-ex?searchtype=author&query=Medina%2C+N+H">N. H. Medina</a>, <a href="/search/nucl-ex?searchtype=author&query=Moralles%2C+M">M. Moralles</a>, <a href="/search/nucl-ex?searchtype=author&query=Oliveira%2C+J+R+B">J. R. B. Oliveira</a>, <a href="/search/nucl-ex?searchtype=author&query=Pakou%2C+A">A. Pakou</a> , et al. (7 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2310.14765v1-abstract-short" style="display: inline;"> The present article reports new data on the $^{48}$Ti($^{18}$O,$^{17}$O)$^{49}$Ti reaction at 275 MeV incident energy as part of the systematic research pursued within the NUMEN project. Supplementary measurements of the same reaction on $^{16}$O and $^{27}$Al targets were also performed in order to estimate the background arising from the use of a composite target (TiO$_{2}$ + $^{27}$Al). These d… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2310.14765v1-abstract-full').style.display = 'inline'; document.getElementById('2310.14765v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2310.14765v1-abstract-full" style="display: none;"> The present article reports new data on the $^{48}$Ti($^{18}$O,$^{17}$O)$^{49}$Ti reaction at 275 MeV incident energy as part of the systematic research pursued within the NUMEN project. Supplementary measurements of the same reaction on $^{16}$O and $^{27}$Al targets were also performed in order to estimate the background arising from the use of a composite target (TiO$_{2}$ + $^{27}$Al). These data were analyzed under the same theoretical framework as those obtained with the titanium target in order to reinforce the conclusions of our analysis. Differential cross-section angular distribution measurements for the $^{17}$O$^{8+}$ ejectiles were performed in a wide angular range by using the MAGNEX large acceptance magnetic spectrometer. The experimental results were analyzed within the distorted-wave and coupled-channels Born Approximation frameworks. The optical potentials at the entrance and exit channels were calculated in a double folding approach adopting the S茫o Paulo potential, and the spectroscopic amplitudes for the projectile and target overlaps were obtained from large-scale shell model calculations. The differential cross-sections are well-described by the theoretical calculations, where a weak coupling to collective excitations of projectile and target is inferred. The sensitivity of transfer cross-sections on different model spaces adopted in nuclear structure calculations, is also discussed. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2310.14765v1-abstract-full').style.display = 'none'; document.getElementById('2310.14765v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 23 October, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2023. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Physical Review C 108, 044611 (2023) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2301.11199">arXiv:2301.11199</a> <span> [<a href="https://arxiv.org/pdf/2301.11199">pdf</a>, <a href="https://arxiv.org/format/2301.11199">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1051/epjconf/202327906004">10.1051/epjconf/202327906004 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> First measurement of the $^{94}$Nb($n$,$纬$) cross section at the CERN n\_TOF facility </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Balibrea-Correa%2C+J">J. Balibrea-Correa</a>, <a href="/search/nucl-ex?searchtype=author&query=Babiano-Suarez%2C+V">V. Babiano-Suarez</a>, <a href="/search/nucl-ex?searchtype=author&query=Lerendegui-Marco%2C+J">J. Lerendegui-Marco</a>, <a href="/search/nucl-ex?searchtype=author&query=Domingo-Pardo%2C+C">C. Domingo-Pardo</a>, <a href="/search/nucl-ex?searchtype=author&query=Ladarescu%2C+I">I. Ladarescu</a>, <a href="/search/nucl-ex?searchtype=author&query=Tarife%C3%B1o-Saldivia%2C+A">A. Tarife帽o-Saldivia</a>, <a href="/search/nucl-ex?searchtype=author&query=Alcayne%2C+V">V. Alcayne</a>, <a href="/search/nucl-ex?searchtype=author&query=Cano-Ott%2C+D">D. Cano-Ott</a>, <a href="/search/nucl-ex?searchtype=author&query=Gonz%C3%A1lez-Romero%2C+E">E. Gonz谩lez-Romero</a>, <a href="/search/nucl-ex?searchtype=author&query=Mart%C3%ADnez%2C+T">T. Mart铆nez</a>, <a href="/search/nucl-ex?searchtype=author&query=Mendoza%2C+E">E. Mendoza</a>, <a href="/search/nucl-ex?searchtype=author&query=Plaza%2C+J">J. Plaza</a>, <a href="/search/nucl-ex?searchtype=author&query=S%C3%A1nchez-Caballero%2C+A">A. S谩nchez-Caballero</a>, <a href="/search/nucl-ex?searchtype=author&query=Calvi%C3%B1o%2C+F">F. Calvi帽o</a>, <a href="/search/nucl-ex?searchtype=author&query=Casanovas%2C+A">A. Casanovas</a>, <a href="/search/nucl-ex?searchtype=author&query=Guerrero%2C+C">C. Guerrero</a>, <a href="/search/nucl-ex?searchtype=author&query=Heinitz%2C+S">S. Heinitz</a>, <a href="/search/nucl-ex?searchtype=author&query=K%C3%B6ster%2C+U">U. K枚ster</a>, <a href="/search/nucl-ex?searchtype=author&query=Maugeri%2C+E+A">E. A. Maugeri</a>, <a href="/search/nucl-ex?searchtype=author&query=Dressler%2C+R">R. Dressler</a>, <a href="/search/nucl-ex?searchtype=author&query=Schumann%2C+D">D. Schumann</a>, <a href="/search/nucl-ex?searchtype=author&query=M%C3%B6nch%2C+I">I. M枚nch</a>, <a href="/search/nucl-ex?searchtype=author&query=Cristallo%2C+S">S. Cristallo</a>, <a href="/search/nucl-ex?searchtype=author&query=Lederer-Woods%2C+C">C. Lederer-Woods</a>, <a href="/search/nucl-ex?searchtype=author&query=Aberle%2C+O">O. Aberle</a> , et al. (112 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2301.11199v2-abstract-short" style="display: inline;"> One of the crucial ingredients for the improvement of stellar models is the accurate knowledge of neutron capture cross-sections for the different isotopes involved in the $s$-,$r$- and $i$- processes. These measurements can shed light on existing discrepancies between observed and predicted isotopic abundances and help to constrain the physical conditions where these reactions take place along di… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2301.11199v2-abstract-full').style.display = 'inline'; document.getElementById('2301.11199v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2301.11199v2-abstract-full" style="display: none;"> One of the crucial ingredients for the improvement of stellar models is the accurate knowledge of neutron capture cross-sections for the different isotopes involved in the $s$-,$r$- and $i$- processes. These measurements can shed light on existing discrepancies between observed and predicted isotopic abundances and help to constrain the physical conditions where these reactions take place along different stages of stellar evolution.In the particular case of the radioactive $^{94}$Nb, the $^{94}$Nb($n$,$纬$) cross-section could play a role in the determination of the $s$-process production of $^{94}$Mo in AGB stars, which presently cannot be reproduced by state-of-the-art stellar models. There are no previous $^{94}$Nb($n$,$纬$) experimental data for the resolved and unresolved resonance regions mainly due to the difficulties in producing high-quality samples and also due to limitations in conventional detection systems commonly used in time-of-flight experiments.Motivated by this situation, a first measurement of the $^{94}$Nb($n$,$纬$) reaction was carried out at CERN n\_TOF, thereby exploiting the high luminosity of the EAR2 area in combination with a new detection system of small-volume C6D6-detectors and a high quality $^{94}$Nb-sample. The latter was based on hyper-pure $^{93}$Nb material activated at the high-flux reactor of ILL-Grenoble. An innovative ring-configuration detection system in close geometry around the capture sample allowed us to significantly enhance the signal-to-background ratio. This set-up was supplemented with two conventional C$_{6}$D$_{6}$ detectors and a high-resolution LaCl$_{3}$(Ce)-detector, which will be employed for addressing reliably systematic effects and uncertainties.At the current status of the data analysis, 18 resonance in $^{94}$Nb+$n$ have been observed for the first time in the neutron energy range from thermal up to 10 keV. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2301.11199v2-abstract-full').style.display = 'none'; document.getElementById('2301.11199v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 20 February, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 26 January, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2023. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">NPA-X conference proceeding</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2212.05128">arXiv:2212.05128</a> <span> [<a href="https://arxiv.org/pdf/2212.05128">pdf</a>, <a href="https://arxiv.org/format/2212.05128">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevC.107.064617">10.1103/PhysRevC.107.064617 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of the $^{14}$N(n,p)$^{14}$C cross section at the CERN n_TOF facility from sub-thermal energy to 800 keV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Torres-S%C3%A1nchez%2C+P">P. Torres-S谩nchez</a>, <a href="/search/nucl-ex?searchtype=author&query=Praena%2C+J">J. Praena</a>, <a href="/search/nucl-ex?searchtype=author&query=Porras%2C+I">I. Porras</a>, <a href="/search/nucl-ex?searchtype=author&query=Sabat%C3%A9-Gilarte%2C+M">M. Sabat茅-Gilarte</a>, <a href="/search/nucl-ex?searchtype=author&query=Lederer-Woods%2C+C">C. Lederer-Woods</a>, <a href="/search/nucl-ex?searchtype=author&query=Aberle%2C+O">O. Aberle</a>, <a href="/search/nucl-ex?searchtype=author&query=Alcayne%2C+V">V. Alcayne</a>, <a href="/search/nucl-ex?searchtype=author&query=Amaducci%2C+S">S. Amaducci</a>, <a href="/search/nucl-ex?searchtype=author&query=Andrzejewski%2C+J">J. Andrzejewski</a>, <a href="/search/nucl-ex?searchtype=author&query=Audouin%2C+L">L. Audouin</a>, <a href="/search/nucl-ex?searchtype=author&query=B%C3%A9cares%2C+V">V. B茅cares</a>, <a href="/search/nucl-ex?searchtype=author&query=Babiano-Suarez%2C+V">V. Babiano-Suarez</a>, <a href="/search/nucl-ex?searchtype=author&query=Bacak%2C+M">M. Bacak</a>, <a href="/search/nucl-ex?searchtype=author&query=Barbagallo%2C+M">M. Barbagallo</a>, <a href="/search/nucl-ex?searchtype=author&query=Be%C4%8Dv%C3%A1%C5%99%2C+F">F. Be膷v谩艡</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellia%2C+G">G. Bellia</a>, <a href="/search/nucl-ex?searchtype=author&query=Berthoumieux%2C+E">E. Berthoumieux</a>, <a href="/search/nucl-ex?searchtype=author&query=Billowes%2C+J">J. Billowes</a>, <a href="/search/nucl-ex?searchtype=author&query=Bosnar%2C+D">D. Bosnar</a>, <a href="/search/nucl-ex?searchtype=author&query=Brown%2C+A">A. Brown</a>, <a href="/search/nucl-ex?searchtype=author&query=Busso%2C+M">M. Busso</a>, <a href="/search/nucl-ex?searchtype=author&query=Caama%C3%B1o%2C+M">M. Caama帽o</a>, <a href="/search/nucl-ex?searchtype=author&query=Caballero%2C+L">L. Caballero</a>, <a href="/search/nucl-ex?searchtype=author&query=Calvi%C3%B1o%2C+F">F. Calvi帽o</a>, <a href="/search/nucl-ex?searchtype=author&query=Calviani%2C+M">M. Calviani</a> , et al. (107 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2212.05128v1-abstract-short" style="display: inline;"> Background: The $^{14}$N(n,p)$^{14}$C reaction is of interest in neutron capture therapy, where nitrogen-related dose is the main component due to low-energy neutrons, and in astrophysics, where 14N acts as a neutron poison in the s-process. Several discrepancies remain between the existing data obtained in partial energy ranges: thermal energy, keV region and resonance region. Purpose: Measuring… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2212.05128v1-abstract-full').style.display = 'inline'; document.getElementById('2212.05128v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2212.05128v1-abstract-full" style="display: none;"> Background: The $^{14}$N(n,p)$^{14}$C reaction is of interest in neutron capture therapy, where nitrogen-related dose is the main component due to low-energy neutrons, and in astrophysics, where 14N acts as a neutron poison in the s-process. Several discrepancies remain between the existing data obtained in partial energy ranges: thermal energy, keV region and resonance region. Purpose: Measuring the 14N(n,p)14C cross section from thermal to the resonance region in a single measurement for the first time, including characterization of the first resonances, and providing calculations of Maxwellian averaged cross sections (MACS). Method: Time-of-flight technique. Experimental Area 2 (EAR-2) of the neutron time-of-flight (n_TOF) facility at CERN. $^{10}$B(n,$伪$)$^7$Li and $^{235}$U(n,f) reactions as references. Two detection systems running simultaneously, one on-beam and another off-beam. Description of the resonances with the R-matrix code sammy. Results: The cross section has been measured from sub-thermal energy to 800 keV resolving the two first resonances (at 492.7 and 644 keV). A thermal cross-section (1.809$\pm$0.045 b) lower than the two most recent measurements by slightly more than one standard deviation, but in line with the ENDF/B-VIII.0 and JEFF-3.3 evaluations has been obtained. A 1/v energy dependence of the cross section has been confirmed up to tens of keV neutron energy. The low energy tail of the first resonance at 492.7 keV is lower than suggested by evaluated values, while the overall resonance strength agrees with evaluations. Conclusions: Our measurement has allowed to determine the $^{14}$N(n,p) cross-section over a wide energy range for the first time. We have obtained cross-sections with high accuracy (2.5 %) from sub-thermal energy to 800 keV and used these data to calculate the MACS for kT = 5 to kT = 100 keV. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2212.05128v1-abstract-full').style.display = 'none'; document.getElementById('2212.05128v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 9 December, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">18 pages, 15 figures, 4 tables</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2211.13323">arXiv:2211.13323</a> <span> [<a href="https://arxiv.org/pdf/2211.13323">pdf</a>, <a href="https://arxiv.org/format/2211.13323">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> </div> <p class="title is-5 mathjax"> A detector system for 'absolute' measurements of fission cross sections at n_TOF in the energy range below 200 MeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Pirovano%2C+E">E. Pirovano</a>, <a href="/search/nucl-ex?searchtype=author&query=Manna%2C+A">A. Manna</a>, <a href="/search/nucl-ex?searchtype=author&query=Aberle%2C+O">O. Aberle</a>, <a href="/search/nucl-ex?searchtype=author&query=Amaducci%2C+S">S. Amaducci</a>, <a href="/search/nucl-ex?searchtype=author&query=Colonna%2C+N">N. Colonna</a>, <a href="/search/nucl-ex?searchtype=author&query=Camprini%2C+P+C">P. Console Camprini</a>, <a href="/search/nucl-ex?searchtype=author&query=Cosentino%2C+L">L. Cosentino</a>, <a href="/search/nucl-ex?searchtype=author&query=Dietz%2C+M">M. Dietz</a>, <a href="/search/nucl-ex?searchtype=author&query=Ducasse%2C+Q">Q. Ducasse</a>, <a href="/search/nucl-ex?searchtype=author&query=Finocchiaro%2C+P">P. Finocchiaro</a>, <a href="/search/nucl-ex?searchtype=author&query=Massimi%2C+C">C. Massimi</a>, <a href="/search/nucl-ex?searchtype=author&query=Mengoni%2C+A">A. Mengoni</a>, <a href="/search/nucl-ex?searchtype=author&query=Nolte%2C+R">R. Nolte</a>, <a href="/search/nucl-ex?searchtype=author&query=Radeck%2C+D">D. Radeck</a>, <a href="/search/nucl-ex?searchtype=author&query=Tassan-Got%2C+L">L. Tassan-Got</a>, <a href="/search/nucl-ex?searchtype=author&query=Terranova%2C+N">N. Terranova</a>, <a href="/search/nucl-ex?searchtype=author&query=Vannini%2C+G">G. Vannini</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2211.13323v2-abstract-short" style="display: inline;"> A new measurement of the $^{235}$U(n,f) cross section was performed at the neutron time-of-flight facility n_TOF at CERN. The experiment focused on neutron energies from 20 MeV to several hundred MeV, and was normalized to neutron scattering on hydrogen. This is a measurement first of its kind at this facility, in an energy range that was until now not often explored, so the detector development p… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2211.13323v2-abstract-full').style.display = 'inline'; document.getElementById('2211.13323v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2211.13323v2-abstract-full" style="display: none;"> A new measurement of the $^{235}$U(n,f) cross section was performed at the neutron time-of-flight facility n_TOF at CERN. The experiment focused on neutron energies from 20 MeV to several hundred MeV, and was normalized to neutron scattering on hydrogen. This is a measurement first of its kind at this facility, in an energy range that was until now not often explored, so the detector development phase was crucial for its success. Two detectors are presented, a parallel plate fission chamber (PPFC) and a recoil proton telescope (RPT), both dedicated to perform measurements in the incident neutron energy range from 30 MeV to 200 MeV. The experiment was designed to minimize statistical uncertainties in the allocated run time. Several efforts were made to ensure that the systematic effects were understood and under control. The results show that the detectors are suited for measurements at n_TOF above 30 MeV, and indicate the path for possible future lines of development. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2211.13323v2-abstract-full').style.display = 'none'; document.getElementById('2211.13323v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 28 November, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 22 November, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Added acknowledgement to Euratom funding</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2211.12427">arXiv:2211.12427</a> <span> [<a href="https://arxiv.org/pdf/2211.12427">pdf</a>, <a href="https://arxiv.org/format/2211.12427">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1748-0221/18/04/P04024">10.1088/1748-0221/18/04/P04024 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Recoil Proton Telescopes and Parallel Plate Avalanche Counters for the $^{235}$U(n,f) cross section measurement relative to H(n,n)H between 10 and 450 MeV neutron energy </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Manna%2C+A">A. Manna</a>, <a href="/search/nucl-ex?searchtype=author&query=Pirovano%2C+E">E. Pirovano</a>, <a href="/search/nucl-ex?searchtype=author&query=Aberle%2C+O">O. Aberle</a>, <a href="/search/nucl-ex?searchtype=author&query=Amaducci%2C+S">S. Amaducci</a>, <a href="/search/nucl-ex?searchtype=author&query=Barbagallo%2C+M">M. Barbagallo</a>, <a href="/search/nucl-ex?searchtype=author&query=Castelluccio%2C+D+M">D. M. Castelluccio</a>, <a href="/search/nucl-ex?searchtype=author&query=Colonna%2C+N">N. Colonna</a>, <a href="/search/nucl-ex?searchtype=author&query=Camprini%2C+P+C">P. Console Camprini</a>, <a href="/search/nucl-ex?searchtype=author&query=Cosentino%2C+L">L. Cosentino</a>, <a href="/search/nucl-ex?searchtype=author&query=Dietz%2C+M">M. Dietz</a>, <a href="/search/nucl-ex?searchtype=author&query=Ducasse%2C+Q">Q. Ducasse</a>, <a href="/search/nucl-ex?searchtype=author&query=Finocchiaro%2C+P">P. Finocchiaro</a>, <a href="/search/nucl-ex?searchtype=author&query=Naour%2C+C+L">C. Le Naour</a>, <a href="/search/nucl-ex?searchtype=author&query=Meo%2C+S+L">S. Lo Meo</a>, <a href="/search/nucl-ex?searchtype=author&query=Mastromarco%2C+M">M. Mastromarco</a>, <a href="/search/nucl-ex?searchtype=author&query=Massimi%2C+C">C. Massimi</a>, <a href="/search/nucl-ex?searchtype=author&query=Mengoni%2C+A">A. Mengoni</a>, <a href="/search/nucl-ex?searchtype=author&query=Milazzo%2C+P+M">P. M. Milazzo</a>, <a href="/search/nucl-ex?searchtype=author&query=Mingrone%2C+F">F. Mingrone</a>, <a href="/search/nucl-ex?searchtype=author&query=Nolte%2C+R">R. Nolte</a>, <a href="/search/nucl-ex?searchtype=author&query=Piscopo%2C+M">M. Piscopo</a>, <a href="/search/nucl-ex?searchtype=author&query=Radeck%2C+D">D. Radeck</a>, <a href="/search/nucl-ex?searchtype=author&query=Spelta%2C+M">M. Spelta</a>, <a href="/search/nucl-ex?searchtype=author&query=Tassan-Got%2C+L">L. Tassan-Got</a>, <a href="/search/nucl-ex?searchtype=author&query=Terranova%2C+N">N. Terranova</a> , et al. (1 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2211.12427v2-abstract-short" style="display: inline;"> With the aim of measuring the $^{235}$U(n,f) cross section at the n\_TOF facility at CERN over a wide neutron energy range, a detection system consisting of two fission detectors and three detectors for neutron flux determination was realized. The neutron flux detectors are Recoil Proton Telescopes (RPT), based on scintillators and solid state detectors, conceived to detect recoil protons from the… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2211.12427v2-abstract-full').style.display = 'inline'; document.getElementById('2211.12427v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2211.12427v2-abstract-full" style="display: none;"> With the aim of measuring the $^{235}$U(n,f) cross section at the n\_TOF facility at CERN over a wide neutron energy range, a detection system consisting of two fission detectors and three detectors for neutron flux determination was realized. The neutron flux detectors are Recoil Proton Telescopes (RPT), based on scintillators and solid state detectors, conceived to detect recoil protons from the neutron-proton elastic scattering reaction. This system, along with a fission chamber and an array of parallel plate avalanche counters for fission event detection, was installed for the measurement at the n\_TOF facility in 2018, at CERN. An overview of the performances of two RPTs - especially developed for this measurement - and of the parallel plate avalanche counters are described in this article. In particular, the characterization in terms of detection efficiency by Monte Carlo simulations and response to neutron beam, the study of the background, dead time correction and characterization of the samples, are reported. The results of the present investigation show that the performances of these detectors are suitable for accurate measurements of fission reaction cross sections in the range from 10 to 450~MeV. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2211.12427v2-abstract-full').style.display = 'none'; document.getElementById('2211.12427v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 18 January, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 22 November, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2022. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2209.04443">arXiv:2209.04443</a> <span> [<a href="https://arxiv.org/pdf/2209.04443">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Methods for Astrophysics">astro-ph.IM</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> </div> <p class="title is-5 mathjax"> The CERN n TOF NEAR station for astrophysics- and application-related neutron activation measurements </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Patronis%2C+N">N. Patronis</a>, <a href="/search/nucl-ex?searchtype=author&query=Mengoni%2C+A">A. Mengoni</a>, <a href="/search/nucl-ex?searchtype=author&query=Colonna%2C+N">N. Colonna</a>, <a href="/search/nucl-ex?searchtype=author&query=Cecchetto%2C+M">M. Cecchetto</a>, <a href="/search/nucl-ex?searchtype=author&query=Domingo-Pardo%2C+C">C. Domingo-Pardo</a>, <a href="/search/nucl-ex?searchtype=author&query=Aberle%2C+O">O. Aberle</a>, <a href="/search/nucl-ex?searchtype=author&query=Lerendegui-Marco%2C+J">J. Lerendegui-Marco</a>, <a href="/search/nucl-ex?searchtype=author&query=Gervino%2C+G">G. Gervino</a>, <a href="/search/nucl-ex?searchtype=author&query=Stamati%2C+M+E">M. E. Stamati</a>, <a href="/search/nucl-ex?searchtype=author&query=Goula%2C+S">S. Goula</a>, <a href="/search/nucl-ex?searchtype=author&query=Bernardes%2C+A+P">A. P. Bernardes</a>, <a href="/search/nucl-ex?searchtype=author&query=Mastromarco%2C+M">M. Mastromarco</a>, <a href="/search/nucl-ex?searchtype=author&query=Manna%2C+A">A. Manna</a>, <a href="/search/nucl-ex?searchtype=author&query=Vlastou%2C+R">R. Vlastou</a>, <a href="/search/nucl-ex?searchtype=author&query=Massimi%2C+C">C. Massimi</a>, <a href="/search/nucl-ex?searchtype=author&query=Calviani%2C+M">M. Calviani</a>, <a href="/search/nucl-ex?searchtype=author&query=Alcayne%2C+V">V. Alcayne</a>, <a href="/search/nucl-ex?searchtype=author&query=Altieri%2C+S">S. Altieri</a>, <a href="/search/nucl-ex?searchtype=author&query=Amaducci%2C+S">S. Amaducci</a>, <a href="/search/nucl-ex?searchtype=author&query=Andrzejewski%2C+J">J. Andrzejewski</a>, <a href="/search/nucl-ex?searchtype=author&query=Babiano-Suarez%2C+V">V. Babiano-Suarez</a>, <a href="/search/nucl-ex?searchtype=author&query=Bacak%2C+M">M. Bacak</a>, <a href="/search/nucl-ex?searchtype=author&query=Balibrea%2C+J">J. Balibrea</a>, <a href="/search/nucl-ex?searchtype=author&query=Beltrami%2C+C">C. Beltrami</a>, <a href="/search/nucl-ex?searchtype=author&query=Bennett%2C+S">S. Bennett</a> , et al. (108 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2209.04443v1-abstract-short" style="display: inline;"> A new experimental area, the NEAR station, has recently been built at the CERN n TOF facility, at a short distance from the spallation target (1.5 m). The new area, characterized by a neutron beam of very high flux, has been designed with the purpose of performing activation measurements of interest for astrophysics and various applications. The beam is transported from the spallation target to th… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2209.04443v1-abstract-full').style.display = 'inline'; document.getElementById('2209.04443v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2209.04443v1-abstract-full" style="display: none;"> A new experimental area, the NEAR station, has recently been built at the CERN n TOF facility, at a short distance from the spallation target (1.5 m). The new area, characterized by a neutron beam of very high flux, has been designed with the purpose of performing activation measurements of interest for astrophysics and various applications. The beam is transported from the spallation target to the NEAR station through a hole in the shielding wall of the target, inside which a collimator is inserted. The new area is complemented with a 纬-ray spectroscopy laboratory, the GEAR station, equipped with a high efficiency HPGe detector, for the measurement of the activity resulting from irradiation of a sample in the NEAR station. The use of a moderator/filter assembly is envisaged, in order to produce a neutron beam of Maxwellian shape at different thermal energies, necessary for the measurement of Maxwellian Averaged Cross Sections of astrophysical interest. A new fast-cycling activation technique is also being investigated, for measurements of reactions leading to isotopes of very short half life. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2209.04443v1-abstract-full').style.display = 'none'; document.getElementById('2209.04443v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 5 September, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2022. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2208.02163">arXiv:2208.02163</a> <span> [<a href="https://arxiv.org/pdf/2208.02163">pdf</a>, <a href="https://arxiv.org/format/2208.02163">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1140/epja/s10050-022-00876-7">10.1140/epja/s10050-022-00876-7 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Advances and new ideas for neutron-capture astrophysics experiments at CERN n_TOF </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Domingo-Pardo%2C+C">C. Domingo-Pardo</a>, <a href="/search/nucl-ex?searchtype=author&query=Babiano-Suarez%2C+V">V. Babiano-Suarez</a>, <a href="/search/nucl-ex?searchtype=author&query=Balibrea-Correa%2C+J">J. Balibrea-Correa</a>, <a href="/search/nucl-ex?searchtype=author&query=Caballero%2C+L">L. Caballero</a>, <a href="/search/nucl-ex?searchtype=author&query=Ladarescu%2C+I">I. Ladarescu</a>, <a href="/search/nucl-ex?searchtype=author&query=Lerendegui-Marco%2C+J">J. Lerendegui-Marco</a>, <a href="/search/nucl-ex?searchtype=author&query=Tain%2C+J+L">J. L. Tain</a>, <a href="/search/nucl-ex?searchtype=author&query=Tarife%C3%B1o-Saldivia%2C+A">A. Tarife帽o-Saldivia</a>, <a href="/search/nucl-ex?searchtype=author&query=Aberle%2C+O">O. Aberle</a>, <a href="/search/nucl-ex?searchtype=author&query=Alcayne%2C+V">V. Alcayne</a>, <a href="/search/nucl-ex?searchtype=author&query=Altieri%2C+S">S. Altieri</a>, <a href="/search/nucl-ex?searchtype=author&query=Amaducci%2C+S">S. Amaducci</a>, <a href="/search/nucl-ex?searchtype=author&query=Andrzejewski%2C+J">J. Andrzejewski</a>, <a href="/search/nucl-ex?searchtype=author&query=Bacak%2C+M">M. Bacak</a>, <a href="/search/nucl-ex?searchtype=author&query=Beltrami%2C+C">C. Beltrami</a>, <a href="/search/nucl-ex?searchtype=author&query=Bennett%2C+S">S. Bennett</a>, <a href="/search/nucl-ex?searchtype=author&query=Bernardes%2C+A+P">A. P. Bernardes</a>, <a href="/search/nucl-ex?searchtype=author&query=Berthoumieux%2C+E">E. Berthoumieux</a>, <a href="/search/nucl-ex?searchtype=author&query=Boromiza%2C+M">M. Boromiza</a>, <a href="/search/nucl-ex?searchtype=author&query=Bosnar%2C+D">D. Bosnar</a>, <a href="/search/nucl-ex?searchtype=author&query=Caama%C3%B1o%2C+M">M. Caama帽o</a>, <a href="/search/nucl-ex?searchtype=author&query=Calvi%C3%B1o%2C+F">F. Calvi帽o</a>, <a href="/search/nucl-ex?searchtype=author&query=Calviani%2C+M">M. Calviani</a>, <a href="/search/nucl-ex?searchtype=author&query=Cano-Ott%2C+D">D. Cano-Ott</a>, <a href="/search/nucl-ex?searchtype=author&query=Casanovas%2C+A">A. Casanovas</a> , et al. (114 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2208.02163v1-abstract-short" style="display: inline;"> This article presents a few selected developments and future ideas related to the measurement of $(n,纬)$ data of astrophysical interest at CERN n_TOF. The MC-aided analysis methodology for the use of low-efficiency radiation detectors in time-of-flight neutron-capture measurements is discussed, with particular emphasis on the systematic accuracy. Several recent instrumental advances are also prese… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2208.02163v1-abstract-full').style.display = 'inline'; document.getElementById('2208.02163v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2208.02163v1-abstract-full" style="display: none;"> This article presents a few selected developments and future ideas related to the measurement of $(n,纬)$ data of astrophysical interest at CERN n_TOF. The MC-aided analysis methodology for the use of low-efficiency radiation detectors in time-of-flight neutron-capture measurements is discussed, with particular emphasis on the systematic accuracy. Several recent instrumental advances are also presented, such as the development of total-energy detectors with $纬$-ray imaging capability for background suppression, and the development of an array of small-volume organic scintillators aimed at exploiting the high instantaneous neutron-flux of EAR2. Finally, astrophysics prospects related to the intermediate $i$ neutron-capture process of nucleosynthesis are discussed in the context of the new NEAR activation area. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2208.02163v1-abstract-full').style.display = 'none'; document.getElementById('2208.02163v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 3 August, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">preprint submitted to the European Physical Journal A, 11 pages, 4 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> The European Physical Journal A 59, 8 (2023) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2206.12341">arXiv:2206.12341</a> <span> [<a href="https://arxiv.org/pdf/2206.12341">pdf</a>, <a href="https://arxiv.org/ps/2206.12341">ps</a>, <a href="https://arxiv.org/format/2206.12341">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Theory">nucl-th</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevC.105.044607">10.1103/PhysRevC.105.044607 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Analysis of one-neutron transfer reaction in $^{18}$O + $^{76}$Se collision at 275 MeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Ciraldo%2C+I">I. Ciraldo</a>, <a href="/search/nucl-ex?searchtype=author&query=Cappuzzello%2C+F">F. Cappuzzello</a>, <a href="/search/nucl-ex?searchtype=author&query=Cavallaro%2C+M">M. Cavallaro</a>, <a href="/search/nucl-ex?searchtype=author&query=Carbone%2C+D">D. Carbone</a>, <a href="/search/nucl-ex?searchtype=author&query=Burrello%2C+S">S. Burrello</a>, <a href="/search/nucl-ex?searchtype=author&query=Spatafora%2C+A">A. Spatafora</a>, <a href="/search/nucl-ex?searchtype=author&query=Gargano%2C+A">A. Gargano</a>, <a href="/search/nucl-ex?searchtype=author&query=De+Gregorio%2C+G">G. De Gregorio</a>, <a href="/search/nucl-ex?searchtype=author&query=Vsevolodovna%2C+R+I+M">R. I. Maga帽a Vsevolodovna</a>, <a href="/search/nucl-ex?searchtype=author&query=Acosta%2C+L">L. Acosta</a>, <a href="/search/nucl-ex?searchtype=author&query=Agodi%2C+C">C. Agodi</a>, <a href="/search/nucl-ex?searchtype=author&query=Amador-Valenzuela%2C+P">P. Amador-Valenzuela</a>, <a href="/search/nucl-ex?searchtype=author&query=Borello-Lewin%2C+T">T. Borello-Lewin</a>, <a href="/search/nucl-ex?searchtype=author&query=Brischetto%2C+G+A">G. A. Brischetto</a>, <a href="/search/nucl-ex?searchtype=author&query=Calabrese%2C+S">S. Calabrese</a>, <a href="/search/nucl-ex?searchtype=author&query=Calvo%2C+D">D. Calvo</a>, <a href="/search/nucl-ex?searchtype=author&query=Capirossi%2C+V">V. Capirossi</a>, <a href="/search/nucl-ex?searchtype=author&query=Lomel%C3%AD%2C+E+R+C">E. R. Ch谩vez Lomel铆</a>, <a href="/search/nucl-ex?searchtype=author&query=Colonna%2C+M">M. Colonna</a>, <a href="/search/nucl-ex?searchtype=author&query=Delaunay%2C+F">F. Delaunay</a>, <a href="/search/nucl-ex?searchtype=author&query=Djapo%2C+H">H. Djapo</a>, <a href="/search/nucl-ex?searchtype=author&query=Eke%2C+C">C. Eke</a>, <a href="/search/nucl-ex?searchtype=author&query=Finocchiaro%2C+P">P. Finocchiaro</a>, <a href="/search/nucl-ex?searchtype=author&query=Firat%2C+S">S. Firat</a>, <a href="/search/nucl-ex?searchtype=author&query=Fisichella%2C+M">M. Fisichella</a> , et al. (23 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2206.12341v1-abstract-short" style="display: inline;"> Purpose: We want to analyze transitions to low-lying excited states of the residual and ejectile nuclei in the 76Se(18O, 17O) 77Se one-neutron stripping reaction at 275-MeV incident energy and determine the role of single-particle and core excitation in the description of the measured cross sections. In addition, we explore the sensitivity of the calculated cross section to different nuclear struc… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2206.12341v1-abstract-full').style.display = 'inline'; document.getElementById('2206.12341v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2206.12341v1-abstract-full" style="display: none;"> Purpose: We want to analyze transitions to low-lying excited states of the residual and ejectile nuclei in the 76Se(18O, 17O) 77Se one-neutron stripping reaction at 275-MeV incident energy and determine the role of single-particle and core excitation in the description of the measured cross sections. In addition, we explore the sensitivity of the calculated cross section to different nuclear structure models. Methods: The excitation energy spectrum and the differential cross-section angular distributions are measured using the MAGNEX large acceptance magnetic spectrometer for the detection of the ejectiles and the missing mass technique for the reconstruction of the reaction kinematics. The data are compared with calculations based on distorted-wave Born approximation, coupled-channels Born approximation, and coupled reaction channels adopting spectroscopic amplitudes for the projectile and target overlaps derived by large-scale shell-model calculations and interacting boson-fermion model. Results: Peaks in the energy spectra corresponding to groups of unresolved transitions to 77Se and 17O are identified. The experimental cross sections are extracted and compared to theoretical calculations. A remarkable agreement is found, without using any scaling factors, demonstrating that the adopted models for nuclear structure and reaction take into account the relevant aspects of the studied processes. The main transitions which contribute to the cross section of each peak are identified. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2206.12341v1-abstract-full').style.display = 'none'; document.getElementById('2206.12341v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 24 June, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">15 pages, 4 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Physical Review C 105, 044607 (2022) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2202.05918">arXiv:2202.05918</a> <span> [<a href="https://arxiv.org/pdf/2202.05918">pdf</a>, <a href="https://arxiv.org/format/2202.05918">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Theory">nucl-th</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevC.105.024616">10.1103/PhysRevC.105.024616 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Multi-channel experimental and theoretical constraints for the $^{116}$Cd($^{20}$Ne,$^{20}$F)$^{116}$In charge exchange reaction at 306 MeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Burrello%2C+S">S. Burrello</a>, <a href="/search/nucl-ex?searchtype=author&query=Calabrese%2C+S">S. Calabrese</a>, <a href="/search/nucl-ex?searchtype=author&query=Cappuzzello%2C+F">F. Cappuzzello</a>, <a href="/search/nucl-ex?searchtype=author&query=Carbone%2C+D">D. Carbone</a>, <a href="/search/nucl-ex?searchtype=author&query=Cavallaro%2C+M">M. Cavallaro</a>, <a href="/search/nucl-ex?searchtype=author&query=Colonna%2C+M">M. Colonna</a>, <a href="/search/nucl-ex?searchtype=author&query=Lay%2C+J+A">J. A. Lay</a>, <a href="/search/nucl-ex?searchtype=author&query=Lenske%2C+H">H. Lenske</a>, <a href="/search/nucl-ex?searchtype=author&query=Agodi%2C+C">C. Agodi</a>, <a href="/search/nucl-ex?searchtype=author&query=Ferreira%2C+J+L">J. L. Ferreira</a>, <a href="/search/nucl-ex?searchtype=author&query=Firat%2C+S">S. Firat</a>, <a href="/search/nucl-ex?searchtype=author&query=Hacisalihoglu%2C+A">A. Hacisalihoglu</a>, <a href="/search/nucl-ex?searchtype=author&query=La+Fauci%2C+L">L. La Fauci</a>, <a href="/search/nucl-ex?searchtype=author&query=Spatafora%2C+A">A. Spatafora</a>, <a href="/search/nucl-ex?searchtype=author&query=Acosta%2C+L">L. Acosta</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellone%2C+J+I">J. I. Bellone</a>, <a href="/search/nucl-ex?searchtype=author&query=Borello-Lewin%2C+T">T. Borello-Lewin</a>, <a href="/search/nucl-ex?searchtype=author&query=Boztosun%2C+I">I. Boztosun</a>, <a href="/search/nucl-ex?searchtype=author&query=Brischetto%2C+G+A">G. A. Brischetto</a>, <a href="/search/nucl-ex?searchtype=author&query=Calvo%2C+D">D. Calvo</a>, <a href="/search/nucl-ex?searchtype=author&query=Ch%C3%A1vez-Lomel%C3%AD%2C+E+R">E. R. Ch谩vez-Lomel铆</a>, <a href="/search/nucl-ex?searchtype=author&query=Ciraldo%2C+I">I. Ciraldo</a>, <a href="/search/nucl-ex?searchtype=author&query=Cutuli%2C+M">M. Cutuli</a>, <a href="/search/nucl-ex?searchtype=author&query=Delaunay%2C+F">F. Delaunay</a>, <a href="/search/nucl-ex?searchtype=author&query=Finocchiaro%2C+P">P. Finocchiaro</a> , et al. (21 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2202.05918v1-abstract-short" style="display: inline;"> Charge exchange (CE) reactions offer a major opportunity to excite nuclear isovector modes, providing clues about the nuclear interaction in the medium. Moreover, double charge exchange (DCE) reactions are proving to be a tempting tool to access nuclear transition matrix elements (NME) related to double beta-decay processes. Through a multi-channel experimental analysis and a consistent theoretica… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2202.05918v1-abstract-full').style.display = 'inline'; document.getElementById('2202.05918v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2202.05918v1-abstract-full" style="display: none;"> Charge exchange (CE) reactions offer a major opportunity to excite nuclear isovector modes, providing clues about the nuclear interaction in the medium. Moreover, double charge exchange (DCE) reactions are proving to be a tempting tool to access nuclear transition matrix elements (NME) related to double beta-decay processes. Through a multi-channel experimental analysis and a consistent theoretical approach of the $^{116}$Cd($^{20}$Ne,$^{20}$F)$^{116}$In single charge exchange (SCE) reaction at 306 MeV, we aim at disentangling from the experimental cross section the contribution of the competing mechanisms, associated with second or higher order sequential transfer and inelastic processes. We measured excitation energy spectra and absolute cross sections for elastic + inelastic, one-proton transfer and SCE channels, using the MAGNEX large acceptance magnetic spectrometer to detect the ejectiles. For the first two channels, we also extracted the experimental cross section angular distributions. The experimental data are compared with theoretical predictions obtained by performing two-step distorted wave Born approximation and coupled reaction channel calculations. We employ spectroscopic amplitudes for single-particle transitions derived within a large-scale shell model approach and different optical potentials for modeling the initial and the final state interactions. The present study significantly mitigates the possible model dependence existing in the description of these complex reaction mechanisms, thanks to the reproduction of several channels at once. In particular, our work demonstrates that the two-step transfer mechanisms produce a non negligible contribution to the total cross section of the $^{116}$Cd($^{20}$Ne,$^{20}$F)$^{116}$In reaction channel, although a relevant fraction is still missing, being ascribable to the direct SCE mechanism, which is not addressed here. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2202.05918v1-abstract-full').style.display = 'none'; document.getElementById('2202.05918v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 11 February, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">21 pages, 11 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2202.05603">arXiv:2202.05603</a> <span> [<a href="https://arxiv.org/pdf/2202.05603">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> </div> <p class="title is-5 mathjax"> High accuracy, high resolution 235U(n,f) cross section from n_TOF (CERN) in the thermal to 10 keV energy range </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=collaboration%2C+n">n_TOF collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=%3A"> :</a>, <a href="/search/nucl-ex?searchtype=author&query=Mastromarco%2C+M">M. Mastromarco</a>, <a href="/search/nucl-ex?searchtype=author&query=Amaducci%2C+S">S. Amaducci</a>, <a href="/search/nucl-ex?searchtype=author&query=Colonna%2C+N">N. Colonna</a>, <a href="/search/nucl-ex?searchtype=author&query=Finocchiaro%2C+P">P. Finocchiaro</a>, <a href="/search/nucl-ex?searchtype=author&query=Cosentino%2C+L">L. Cosentino</a>, <a href="/search/nucl-ex?searchtype=author&query=Aberle%2C+O">O. Aberle</a>, <a href="/search/nucl-ex?searchtype=author&query=Andrzejewski%2C+J">J. Andrzejewski</a>, <a href="/search/nucl-ex?searchtype=author&query=Audouin%2C+L">L. Audouin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bacak%2C+M">M. Bacak</a>, <a href="/search/nucl-ex?searchtype=author&query=Balibrea%2C+J">J. Balibrea</a>, <a href="/search/nucl-ex?searchtype=author&query=Barbagallo%2C+M">M. Barbagallo</a>, <a href="/search/nucl-ex?searchtype=author&query=Be%C4%8Dv%C3%A1%C5%99%2C+F">F. Be膷v谩艡</a>, <a href="/search/nucl-ex?searchtype=author&query=Berthoumieux%2C+E">E. Berthoumieux</a>, <a href="/search/nucl-ex?searchtype=author&query=Billowes%2C+J">J. Billowes</a>, <a href="/search/nucl-ex?searchtype=author&query=Bosnar%2C+D">D. Bosnar</a>, <a href="/search/nucl-ex?searchtype=author&query=Brown%2C+A">A. Brown</a>, <a href="/search/nucl-ex?searchtype=author&query=Caama%C3%B1o%2C+M">M. Caama帽o</a>, <a href="/search/nucl-ex?searchtype=author&query=Calvi%C3%B1o%2C+F">F. Calvi帽o</a>, <a href="/search/nucl-ex?searchtype=author&query=Calviani%2C+M">M. Calviani</a>, <a href="/search/nucl-ex?searchtype=author&query=Cano-Ott%2C+D">D. Cano-Ott</a>, <a href="/search/nucl-ex?searchtype=author&query=Cardella%2C+R">R. Cardella</a>, <a href="/search/nucl-ex?searchtype=author&query=Casanovas%2C+A">A. Casanovas</a>, <a href="/search/nucl-ex?searchtype=author&query=Cerutti%2C+F">F. Cerutti</a> , et al. (98 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2202.05603v1-abstract-short" style="display: inline;"> The 235U(n,f) cross section was measured in a wide energy range (25 meV - 170 keV) at the n_TOF facility at CERN, relative to 6Li(n,t) and 10B(n,alpha) standard reactions, with high resolution and accuracy, with a setup based on a stack of six samples and six silicon detectors placed in the neutron beam. In this paper we report on the results in the region between thermal and 10 keV neutron energy… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2202.05603v1-abstract-full').style.display = 'inline'; document.getElementById('2202.05603v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2202.05603v1-abstract-full" style="display: none;"> The 235U(n,f) cross section was measured in a wide energy range (25 meV - 170 keV) at the n_TOF facility at CERN, relative to 6Li(n,t) and 10B(n,alpha) standard reactions, with high resolution and accuracy, with a setup based on a stack of six samples and six silicon detectors placed in the neutron beam. In this paper we report on the results in the region between thermal and 10 keV neutron energy. A resonance analysis has been performed up to 200 eV, with the code SAMMY. The resulting fission kernels are compared with the ones extracted on the basis of the resonance parameters of the most recent major evaluated data libraries. A comparison of the n_TOF data with the evaluated cross sections is also performed from thermal to 10 keV neutron energy for the energy-averaged cross section in energy groups of suitably chosen width. A good agreement is found in average between the new results and the latest evaluated data files ENDF-B/VIII and JEFF-3.3, as well as with respect to the IAEA reference files. However, some discrepancies are still present in some specific energy regions. The new dataset here presented, characterized by unprecedented resolution and accuracy, can help improving the evaluations in the Resolved Resonance Region and up to 10 keV, and reduce the uncertainties that affect this region. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2202.05603v1-abstract-full').style.display = 'none'; document.getElementById('2202.05603v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 2 February, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2022. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2110.13092">arXiv:2110.13092</a> <span> [<a href="https://arxiv.org/pdf/2110.13092">pdf</a>, <a href="https://arxiv.org/format/2110.13092">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.nima.2020.164500">10.1016/j.nima.2020.164500 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Analysis of the background on cross section measurements with the MAGNEX spectrometer: the (20Ne,20O) Double Charge Exchange case </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Calabrese%2C+S">S. Calabrese</a>, <a href="/search/nucl-ex?searchtype=author&query=Cappuzzello%2C+F">F. Cappuzzello</a>, <a href="/search/nucl-ex?searchtype=author&query=Carbone%2C+D">D. Carbone</a>, <a href="/search/nucl-ex?searchtype=author&query=Cavallaro%2C+M">M. Cavallaro</a>, <a href="/search/nucl-ex?searchtype=author&query=Agodi%2C+C">C. Agodi</a>, <a href="/search/nucl-ex?searchtype=author&query=Torresi%2C+D">D. Torresi</a>, <a href="/search/nucl-ex?searchtype=author&query=Acosta%2C+L">L. Acosta</a>, <a href="/search/nucl-ex?searchtype=author&query=Bonanno%2C+D">D. Bonanno</a>, <a href="/search/nucl-ex?searchtype=author&query=Bongiovanni%2C+D">D. Bongiovanni</a>, <a href="/search/nucl-ex?searchtype=author&query=Borello-Lewin%2C+T">T. Borello-Lewin</a>, <a href="/search/nucl-ex?searchtype=author&query=Boztosun%2C+I">I. Boztosun</a>, <a href="/search/nucl-ex?searchtype=author&query=Brischetto%2C+G+A">G. A. Brischetto</a>, <a href="/search/nucl-ex?searchtype=author&query=Calvo%2C+D">D. Calvo</a>, <a href="/search/nucl-ex?searchtype=author&query=Ciraldo%2C+I">I. Ciraldo</a>, <a href="/search/nucl-ex?searchtype=author&query=Deshmukh%2C+N">N. Deshmukh</a>, <a href="/search/nucl-ex?searchtype=author&query=de+Faria%2C+P+N">P. N. de Faria</a>, <a href="/search/nucl-ex?searchtype=author&query=Finocchiaro%2C+P">P. Finocchiaro</a>, <a href="/search/nucl-ex?searchtype=author&query=Foti%2C+A">A. Foti</a>, <a href="/search/nucl-ex?searchtype=author&query=Gallo%2C+G">G. Gallo</a>, <a href="/search/nucl-ex?searchtype=author&query=Hacisalihoglu%2C+A">A. Hacisalihoglu</a>, <a href="/search/nucl-ex?searchtype=author&query=Iazzi%2C+F">F. Iazzi</a>, <a href="/search/nucl-ex?searchtype=author&query=Introzzi%2C+R">R. Introzzi</a>, <a href="/search/nucl-ex?searchtype=author&query=La+Fauci%2C+L">L. La Fauci</a>, <a href="/search/nucl-ex?searchtype=author&query=Lanzalone%2C+G">G. Lanzalone</a>, <a href="/search/nucl-ex?searchtype=author&query=Linares%2C+R">R. Linares</a> , et al. (18 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2110.13092v1-abstract-short" style="display: inline;"> The MAGNEX magnetic spectrometer is used in the experimental measurements of Double Charge Exchange and Multi-Nucleon Transfer reactions induced by heavy ions within the NUMEN project. These processes are characterized by small cross sections under a large background due to other reaction channels. Therefore an accurate control of the signal to background ratio is mandatory. In this article, the d… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2110.13092v1-abstract-full').style.display = 'inline'; document.getElementById('2110.13092v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2110.13092v1-abstract-full" style="display: none;"> The MAGNEX magnetic spectrometer is used in the experimental measurements of Double Charge Exchange and Multi-Nucleon Transfer reactions induced by heavy ions within the NUMEN project. These processes are characterized by small cross sections under a large background due to other reaction channels. Therefore an accurate control of the signal to background ratio is mandatory. In this article, the determination of the MAGNEX spectrometer background contribution on cross section measurements is presented by applying a suitable analysis to quantify the limits of the adopted particle identification technique. The method is discussed considering the 116Cd(20Ne,20O)116Sn Double Charge Exchange reaction data, however it can be applied to any other reaction channel of interest. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2110.13092v1-abstract-full').style.display = 'none'; document.getElementById('2110.13092v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 25 October, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Nucl. Instrum. Methods Phys. Res. A 980 (2020) 164500 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2110.10642">arXiv:2110.10642</a> <span> [<a href="https://arxiv.org/pdf/2110.10642">pdf</a>, <a href="https://arxiv.org/ps/2110.10642">ps</a>, <a href="https://arxiv.org/format/2110.10642">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Theory">nucl-th</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevC.104.034617">10.1103/PhysRevC.104.034617 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Study of one-proton transfer reaction for the $^{18}$O + $^{48}$Ti system at 275 MeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Sgouros%2C+O">O. Sgouros</a>, <a href="/search/nucl-ex?searchtype=author&query=Cavallaro%2C+M">M. Cavallaro</a>, <a href="/search/nucl-ex?searchtype=author&query=Cappuzzello%2C+F">F. Cappuzzello</a>, <a href="/search/nucl-ex?searchtype=author&query=Carbone%2C+D">D. Carbone</a>, <a href="/search/nucl-ex?searchtype=author&query=Agodi%2C+C">C. Agodi</a>, <a href="/search/nucl-ex?searchtype=author&query=Gargano%2C+A">A. Gargano</a>, <a href="/search/nucl-ex?searchtype=author&query=De+Gregorio%2C+G">G. De Gregorio</a>, <a href="/search/nucl-ex?searchtype=author&query=Altana%2C+C">C. Altana</a>, <a href="/search/nucl-ex?searchtype=author&query=Brischetto%2C+G+A">G. A. Brischetto</a>, <a href="/search/nucl-ex?searchtype=author&query=Burrello%2C+S">S. Burrello</a>, <a href="/search/nucl-ex?searchtype=author&query=Calabrese%2C+S">S. Calabrese</a>, <a href="/search/nucl-ex?searchtype=author&query=Calvo%2C+D">D. Calvo</a>, <a href="/search/nucl-ex?searchtype=author&query=Capirossi%2C+V">V. Capirossi</a>, <a href="/search/nucl-ex?searchtype=author&query=Lomeli%2C+E+R+C">E. R. Chavez Lomeli</a>, <a href="/search/nucl-ex?searchtype=author&query=Ciraldo%2C+I">I. Ciraldo</a>, <a href="/search/nucl-ex?searchtype=author&query=Cutuli%2C+M">M. Cutuli</a>, <a href="/search/nucl-ex?searchtype=author&query=Delaunay%2C+F">F. Delaunay</a>, <a href="/search/nucl-ex?searchtype=author&query=Djapo%2C+H">H. Djapo</a>, <a href="/search/nucl-ex?searchtype=author&query=Eke%2C+C">C. Eke</a>, <a href="/search/nucl-ex?searchtype=author&query=Finocchiaro%2C+P">P. Finocchiaro</a>, <a href="/search/nucl-ex?searchtype=author&query=Fisichella%2C+M">M. Fisichella</a>, <a href="/search/nucl-ex?searchtype=author&query=Foti%2C+A">A. Foti</a>, <a href="/search/nucl-ex?searchtype=author&query=Hacisalihoglu%2C+A">A. Hacisalihoglu</a>, <a href="/search/nucl-ex?searchtype=author&query=Iazzi%2C+F">F. Iazzi</a>, <a href="/search/nucl-ex?searchtype=author&query=La+Fauci%2C+L">L. La Fauci</a> , et al. (16 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2110.10642v1-abstract-short" style="display: inline;"> Single-nucleon transfer reactions are processes that selectively probe single-particle components of the populated many-body nuclear states. In this context, recent efforts have been made to build a unified description of the rich nuclear spectroscopy accessible in heavy-ion collisions. An example of this multichannel approach is the study of the competition between successive nucleon transfer and… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2110.10642v1-abstract-full').style.display = 'inline'; document.getElementById('2110.10642v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2110.10642v1-abstract-full" style="display: none;"> Single-nucleon transfer reactions are processes that selectively probe single-particle components of the populated many-body nuclear states. In this context, recent efforts have been made to build a unified description of the rich nuclear spectroscopy accessible in heavy-ion collisions. An example of this multichannel approach is the study of the competition between successive nucleon transfer and charge exchange reactions, the latter being of particular interest in the context of single and double beta decay studies. To this extent, the one-proton pickup reaction $^{48}$Ti($^{18}$O,$^{19}$F)$^{47}$Sc at 275 MeV was measured for the first time, under the NUMEN experimental campaign. Differential cross-section angular distribution measurements for the $^{19}$F ejectiles were performed at INFN-LNS in Catania by using the MAGNEX large acceptance magnetic spectrometer. The data were analyzed within the distorted-wave and coupled-channels Born approximation frameworks. The initial and final-state interactions were described adopting the S茫o Paulo potential, whereas the spectroscopic amplitudes for the projectile and target overlaps were derived from shell-model calculations. The theoretical cross sections are found to be in very good agreement with the experimental data, suggesting the validity of the optical potentials and the shell-model description of the involved nuclear states within the adopted model space. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2110.10642v1-abstract-full').style.display = 'none'; document.getElementById('2110.10642v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 20 October, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2021. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2110.10634">arXiv:2110.10634</a> <span> [<a href="https://arxiv.org/pdf/2110.10634">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Theory">nucl-th</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevC.102.044606">10.1103/PhysRevC.102.044606 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Analysis of two-nucleon transfer reactions in the 20Ne + 116Cd system at 306 MeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Carbone%2C+D">D. Carbone</a>, <a href="/search/nucl-ex?searchtype=author&query=Ferreira%2C+J+L">J. L. Ferreira</a>, <a href="/search/nucl-ex?searchtype=author&query=Calabrese%2C+S">S. Calabrese</a>, <a href="/search/nucl-ex?searchtype=author&query=Cappuzzello%2C+F">F. Cappuzzello</a>, <a href="/search/nucl-ex?searchtype=author&query=Cavallaro%2C+M">M. Cavallaro</a>, <a href="/search/nucl-ex?searchtype=author&query=Hacisalihoglu%2C+A">A. Hacisalihoglu</a>, <a href="/search/nucl-ex?searchtype=author&query=Lenske%2C+H">H. Lenske</a>, <a href="/search/nucl-ex?searchtype=author&query=Lubian%2C+J">J. Lubian</a>, <a href="/search/nucl-ex?searchtype=author&query=Vsevolodovna%2C+R+I+M">R. I. Magana Vsevolodovna</a>, <a href="/search/nucl-ex?searchtype=author&query=Santopinto%2C+E">E. Santopinto</a>, <a href="/search/nucl-ex?searchtype=author&query=Agodi%2C+C">C. Agodi</a>, <a href="/search/nucl-ex?searchtype=author&query=Acosta%2C+L">L. Acosta</a>, <a href="/search/nucl-ex?searchtype=author&query=Bonanno%2C+D">D. Bonanno</a>, <a href="/search/nucl-ex?searchtype=author&query=Borello-Lewin%2C+T">T. Borello-Lewin</a>, <a href="/search/nucl-ex?searchtype=author&query=Boztosun%2C+I">I. Boztosun</a>, <a href="/search/nucl-ex?searchtype=author&query=Brischetto%2C+G+A">G. A. Brischetto</a>, <a href="/search/nucl-ex?searchtype=author&query=Burrello%2C+S">S. Burrello</a>, <a href="/search/nucl-ex?searchtype=author&query=Calvo%2C+D">D. Calvo</a>, <a href="/search/nucl-ex?searchtype=author&query=Lomel%C3%AD%2C+E+R+C">E. R. Ch谩vez Lomel铆</a>, <a href="/search/nucl-ex?searchtype=author&query=Ciraldo%2C+I">I. Ciraldo</a>, <a href="/search/nucl-ex?searchtype=author&query=Colonna%2C+M">M. Colonna</a>, <a href="/search/nucl-ex?searchtype=author&query=Delaunay%2C+F">F. Delaunay</a>, <a href="/search/nucl-ex?searchtype=author&query=Deshmukh%2C+N">N. Deshmukh</a>, <a href="/search/nucl-ex?searchtype=author&query=Finocchiaro%2C+P">P. Finocchiaro</a>, <a href="/search/nucl-ex?searchtype=author&query=Fisichella%2C+M">M. Fisichella</a> , et al. (24 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2110.10634v1-abstract-short" style="display: inline;"> Background: Heavy-ion induced two-nucleon transfer reactions are powerful tools to reveal peculiar aspects of the atomic nucleus, such as pairing correlations, single-particle and collective degrees of freedom, and more. Also, these processes are in competition with the direct meson exchange in the double charge exchange reactions, which have recently attracted great interest due to their possible… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2110.10634v1-abstract-full').style.display = 'inline'; document.getElementById('2110.10634v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2110.10634v1-abstract-full" style="display: none;"> Background: Heavy-ion induced two-nucleon transfer reactions are powerful tools to reveal peculiar aspects of the atomic nucleus, such as pairing correlations, single-particle and collective degrees of freedom, and more. Also, these processes are in competition with the direct meson exchange in the double charge exchange reactions, which have recently attracted great interest due to their possible connection to neutrinoless double-beta decay. In this framework, the exploration of two-nucleon transfer reactions in the 20Ne+116Cd collision at energies above the Coulomb barrier is particularly relevant since the 116Cd nucleus is a candidate for the double-beta decay. Methods: We measured the excitation energy spectra and absolute cross sections for the two reactions using the MAGNEX large acceptance magnetic spectrometer to detect the ejectiles. We performed direct coupled reaction channels and sequential distorted wave Born approximation calculations using the double folding S茫o Paulo potential to model the initial and final state interactions. The spectroscopic amplitudes for two- and singleparticle transitions were derived by different nuclear structure approaches: microscopic large-scale shell model, interacting boson model-2 and quasiparticle random phase approximation. Results: The calculations are able to reproduce the experimental cross sections for both two-neutron and twoproton transfer reactions. The role of couplings with the inelastic channels are found to be important in the two-proton transfer case. A competition between the direct and the sequential process is found in the reaction mechanism. For the two-proton transfer case, the inclusion of the 1g7/2 and 2d5/2 orbitals in the model space is crucial. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2110.10634v1-abstract-full').style.display = 'none'; document.getElementById('2110.10634v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 20 October, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2021. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2012.10374">arXiv:2012.10374</a> <span> [<a href="https://arxiv.org/pdf/2012.10374">pdf</a>, <a href="https://arxiv.org/format/2012.10374">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Methods for Astrophysics">astro-ph.IM</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1140/epja/s10050-021-00507-7">10.1140/epja/s10050-021-00507-7 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Imaging neutron capture cross sections: i-TED proof-of-concept and future prospects based on Machine-Learning techniques </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Babiano-Su%C3%A1rez%2C+V">V. Babiano-Su谩rez</a>, <a href="/search/nucl-ex?searchtype=author&query=Lerendegui-Marco%2C+J">J. Lerendegui-Marco</a>, <a href="/search/nucl-ex?searchtype=author&query=Balibrea-Correa%2C+J">J. Balibrea-Correa</a>, <a href="/search/nucl-ex?searchtype=author&query=Caballero%2C+L">L. Caballero</a>, <a href="/search/nucl-ex?searchtype=author&query=Calvo%2C+D">D. Calvo</a>, <a href="/search/nucl-ex?searchtype=author&query=Ladarescu%2C+I">I. Ladarescu</a>, <a href="/search/nucl-ex?searchtype=author&query=Domingo-Pardo%2C+C">C. Domingo-Pardo</a>, <a href="/search/nucl-ex?searchtype=author&query=Calvi%C3%B1o%2C+F">F. Calvi帽o</a>, <a href="/search/nucl-ex?searchtype=author&query=Casanovas%2C+A">A. Casanovas</a>, <a href="/search/nucl-ex?searchtype=author&query=Tarife%C3%B1o-Saldivia%2C+A">A. Tarife帽o-Saldivia</a>, <a href="/search/nucl-ex?searchtype=author&query=Alcayne%2C+V">V. Alcayne</a>, <a href="/search/nucl-ex?searchtype=author&query=Guerrero%2C+C">C. Guerrero</a>, <a href="/search/nucl-ex?searchtype=author&query=Mill%C3%A1n-Callado%2C+M+A">M. A. Mill谩n-Callado</a>, <a href="/search/nucl-ex?searchtype=author&query=Gonz%C3%A1lez%2C+M+T+R">M. T. Rodr铆guez Gonz谩lez</a>, <a href="/search/nucl-ex?searchtype=author&query=Barbagallo%2C+M">M. Barbagallo</a>, <a href="/search/nucl-ex?searchtype=author&query=Aberle%2C+O">O. Aberle</a>, <a href="/search/nucl-ex?searchtype=author&query=Amaducci%2C+S">S. Amaducci</a>, <a href="/search/nucl-ex?searchtype=author&query=Andrzejewski%2C+J">J. Andrzejewski</a>, <a href="/search/nucl-ex?searchtype=author&query=Audouin%2C+L">L. Audouin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bacak%2C+M">M. Bacak</a>, <a href="/search/nucl-ex?searchtype=author&query=Bennett%2C+S">S. Bennett</a>, <a href="/search/nucl-ex?searchtype=author&query=Berthoumieux%2C+E">E. Berthoumieux</a>, <a href="/search/nucl-ex?searchtype=author&query=Billowes%2C+J">J. Billowes</a>, <a href="/search/nucl-ex?searchtype=author&query=Bosnar%2C+D">D. Bosnar</a>, <a href="/search/nucl-ex?searchtype=author&query=Brown%2C+A">A. Brown</a> , et al. (110 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2012.10374v1-abstract-short" style="display: inline;"> i-TED is an innovative detection system which exploits Compton imaging techniques to achieve a superior signal-to-background ratio in ($n,纬$) cross-section measurements using time-of-flight technique. This work presents the first experimental validation of the i-TED apparatus for high-resolution time-of-flight experiments and demonstrates for the first time the concept proposed for background reje… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2012.10374v1-abstract-full').style.display = 'inline'; document.getElementById('2012.10374v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2012.10374v1-abstract-full" style="display: none;"> i-TED is an innovative detection system which exploits Compton imaging techniques to achieve a superior signal-to-background ratio in ($n,纬$) cross-section measurements using time-of-flight technique. This work presents the first experimental validation of the i-TED apparatus for high-resolution time-of-flight experiments and demonstrates for the first time the concept proposed for background rejection. To this aim both $^{197}$Au($n,纬$) and $^{56}$Fe($n, 纬$) reactions were measured at CERN n\_TOF using an i-TED demonstrator based on only three position-sensitive detectors. Two \cds detectors were also used to benchmark the performance of i-TED. The i-TED prototype built for this study shows a factor of $\sim$3 higher detection sensitivity than state-of-the-art \cds detectors in the $\sim$10~keV neutron energy range of astrophysical interest. This paper explores also the perspectives of further enhancement in performance attainable with the final i-TED array consisting of twenty position-sensitive detectors and new analysis methodologies based on Machine-Learning techniques. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2012.10374v1-abstract-full').style.display = 'none'; document.getElementById('2012.10374v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 18 December, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">16 pages, 16 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2002.02761">arXiv:2002.02761</a> <span> [<a href="https://arxiv.org/pdf/2002.02761">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> </div> <p class="title is-5 mathjax"> NURE: An ERC project to study nuclear reactions for neutrinoless double beta decay </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Cavallaro%2C+M">M. Cavallaro</a>, <a href="/search/nucl-ex?searchtype=author&query=Aciksoz%2C+E">E. Aciksoz</a>, <a href="/search/nucl-ex?searchtype=author&query=Acosta%2C+L">L. Acosta</a>, <a href="/search/nucl-ex?searchtype=author&query=Agodi%2C+C">C. Agodi</a>, <a href="/search/nucl-ex?searchtype=author&query=Auerbach%2C+N">N. Auerbach</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellone%2C+J">J. Bellone</a>, <a href="/search/nucl-ex?searchtype=author&query=Bijker%2C+R">R. Bijker</a>, <a href="/search/nucl-ex?searchtype=author&query=Bianco%2C+S">S. Bianco</a>, <a href="/search/nucl-ex?searchtype=author&query=Bonanno%2C+D">D. Bonanno</a>, <a href="/search/nucl-ex?searchtype=author&query=Bongiovanni%2C+D">D. Bongiovanni</a>, <a href="/search/nucl-ex?searchtype=author&query=Borello%2C+T">T. Borello</a>, <a href="/search/nucl-ex?searchtype=author&query=Boztosun%2C+I">I. Boztosun</a>, <a href="/search/nucl-ex?searchtype=author&query=Branchina%2C+V">V. Branchina</a>, <a href="/search/nucl-ex?searchtype=author&query=Bussa%2C+M+P">M. P. Bussa</a>, <a href="/search/nucl-ex?searchtype=author&query=Busso%2C+L">L. Busso</a>, <a href="/search/nucl-ex?searchtype=author&query=Calabrese%2C+S">S. Calabrese</a>, <a href="/search/nucl-ex?searchtype=author&query=Calabretta%2C+L">L. Calabretta</a>, <a href="/search/nucl-ex?searchtype=author&query=Calanna%2C+A">A. Calanna</a>, <a href="/search/nucl-ex?searchtype=author&query=Calvo%2C+D">D. Calvo</a>, <a href="/search/nucl-ex?searchtype=author&query=Cappuzzello%2C+F">F. Cappuzzello</a>, <a href="/search/nucl-ex?searchtype=author&query=Carbone%2C+D">D. Carbone</a>, <a href="/search/nucl-ex?searchtype=author&query=Lomeli%2C+E+R+C">E. R. Chavez Lomeli</a>, <a href="/search/nucl-ex?searchtype=author&query=Colonna%2C+M">M. Colonna</a>, <a href="/search/nucl-ex?searchtype=author&query=Agostino%2C+G+D">G. D Agostino</a>, <a href="/search/nucl-ex?searchtype=author&query=Deshmuk%2C+N">N. Deshmuk</a> , et al. (49 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2002.02761v1-abstract-short" style="display: inline;"> Neutrinoless double beta decay (0谓\b{eta}\b{eta}) is considered the best potential resource to determine the absolute neutrino mass scale. Moreover, if observed, it will signal that the total lepton number is not conserved and neutrinos are their own anti-particles. Presently, this physics case is one of the most important research beyond Standard Model and might guide the way towards a Grand Unif… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2002.02761v1-abstract-full').style.display = 'inline'; document.getElementById('2002.02761v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2002.02761v1-abstract-full" style="display: none;"> Neutrinoless double beta decay (0谓\b{eta}\b{eta}) is considered the best potential resource to determine the absolute neutrino mass scale. Moreover, if observed, it will signal that the total lepton number is not conserved and neutrinos are their own anti-particles. Presently, this physics case is one of the most important research beyond Standard Model and might guide the way towards a Grand Unified Theory of fundamental interactions. Since the \b{eta}\b{eta} decay process involves nuclei, its analysis necessarily implies nuclear structure issues. The 0谓\b{eta}\b{eta} decay rate can be expressed as a product of independent factors: the phase-space factors, the nuclear matrix elements (NME) and a function of the masses of the neutrino species. Thus the knowledge of the NME can give information on the neutrino mass scale, if the 0谓\b{eta}\b{eta} decay rate is measured. In the NURE project, supported by a Starting Grant of the European Research Council, nuclear reactions of double charge-exchange (DCE) will be used as a tool to extract information on the \b{eta}\b{eta} NME. In DCE reactions and \b{eta}\b{eta} decay, the initial and final nuclear states are the same and the transition operators have similar structure. Thus the measurement of the DCE absolute crosssections can give crucial information on \b{eta}\b{eta} matrix elements. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2002.02761v1-abstract-full').style.display = 'none'; document.getElementById('2002.02761v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 27 January, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">arXiv admin note: substantial text overlap with arXiv:2001.09657; text overlap with arXiv:2001.09648</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2001.09674">arXiv:2001.09674</a> <span> [<a href="https://arxiv.org/pdf/2001.09674">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> </div> <p class="title is-5 mathjax"> Charge-state distributions of 20Ne ions emerging from thin foils </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Cavallaro%2C+M">M. Cavallaro</a>, <a href="/search/nucl-ex?searchtype=author&query=Santagati%2C+G">G. Santagati</a>, <a href="/search/nucl-ex?searchtype=author&query=Cappuzzello%2C+F">F. Cappuzzello</a>, <a href="/search/nucl-ex?searchtype=author&query=Carbone%2C+D">D. Carbone</a>, <a href="/search/nucl-ex?searchtype=author&query=Linares%2C+R">R. Linares</a>, <a href="/search/nucl-ex?searchtype=author&query=Torresi%2C+D">D. Torresi</a>, <a href="/search/nucl-ex?searchtype=author&query=Acosta%2C+L">L. Acosta</a>, <a href="/search/nucl-ex?searchtype=author&query=Agodi%2C+C">C. Agodi</a>, <a href="/search/nucl-ex?searchtype=author&query=Bonanno%2C+D">D. Bonanno</a>, <a href="/search/nucl-ex?searchtype=author&query=Bongiovanni%2C+D">D. Bongiovanni</a>, <a href="/search/nucl-ex?searchtype=author&query=Borello-Lewin%2C+T">T. Borello-Lewin</a>, <a href="/search/nucl-ex?searchtype=author&query=Boztosun%2C+I">I. Boztosun</a>, <a href="/search/nucl-ex?searchtype=author&query=Calabrese%2C+S">S. Calabrese</a>, <a href="/search/nucl-ex?searchtype=author&query=Calvo%2C+D">D. Calvo</a>, <a href="/search/nucl-ex?searchtype=author&query=Lomeli%2C+E+R+C">E. R. Chavez Lomeli</a>, <a href="/search/nucl-ex?searchtype=author&query=De+Faria%2C+P+N">P. N. De Faria</a>, <a href="/search/nucl-ex?searchtype=author&query=Delaunay%2C+F">F. Delaunay</a>, <a href="/search/nucl-ex?searchtype=author&query=Deshmukh%2C+N">N. Deshmukh</a>, <a href="/search/nucl-ex?searchtype=author&query=Finocchiaro%2C+P">P. Finocchiaro</a>, <a href="/search/nucl-ex?searchtype=author&query=Fisichella%2C+M">M. Fisichella</a>, <a href="/search/nucl-ex?searchtype=author&query=Foti%2C+A">A. Foti</a>, <a href="/search/nucl-ex?searchtype=author&query=Gallo%2C+G">G. Gallo</a>, <a href="/search/nucl-ex?searchtype=author&query=Hacisalihoglu%2C+A">A. Hacisalihoglu</a>, <a href="/search/nucl-ex?searchtype=author&query=Iazzi%2C+F">F. Iazzi</a>, <a href="/search/nucl-ex?searchtype=author&query=Introzzi%2C+R">R. Introzzi</a> , et al. (20 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2001.09674v1-abstract-short" style="display: inline;"> New experimental measurements of charge state distributions produced by a 20Ne10+ beam at 15 MeV/u colliding on various thin solid targets are presented. The use of the MAGNEX magnetic spectrometer enabled measurements of the 8+ charge state down to fractions of a few 10-5. The use of different post-stripper foils located downstream of the main target is explored, showing that low Z materials are… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2001.09674v1-abstract-full').style.display = 'inline'; document.getElementById('2001.09674v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2001.09674v1-abstract-full" style="display: none;"> New experimental measurements of charge state distributions produced by a 20Ne10+ beam at 15 MeV/u colliding on various thin solid targets are presented. The use of the MAGNEX magnetic spectrometer enabled measurements of the 8+ charge state down to fractions of a few 10-5. The use of different post-stripper foils located downstream of the main target is explored, showing that low Z materials are particularly effective to shift the charge state distributions towards fully stripped conditions. The dependence on the foil thickness is also studied and discussed. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2001.09674v1-abstract-full').style.display = 'none'; document.getElementById('2001.09674v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 27 January, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2020. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2001.09648">arXiv:2001.09648</a> <span> [<a href="https://arxiv.org/pdf/2001.09648">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1742-6596/966/1/012021">10.1088/1742-6596/966/1/012021 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measuring nuclear reaction cross sections to extract information on neutrinoless double beta decay </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Cavallaro%2C+M">M. Cavallaro</a>, <a href="/search/nucl-ex?searchtype=author&query=Cappuzzello%2C+F">F. Cappuzzello</a>, <a href="/search/nucl-ex?searchtype=author&query=Agodi%2C+C">C. Agodi</a>, <a href="/search/nucl-ex?searchtype=author&query=Acosta%2C+L">L. Acosta</a>, <a href="/search/nucl-ex?searchtype=author&query=Auerbach%2C+N">N. Auerbach</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellone%2C+J">J. Bellone</a>, <a href="/search/nucl-ex?searchtype=author&query=Bijker%2C+R">R. Bijker</a>, <a href="/search/nucl-ex?searchtype=author&query=Bonanno%2C+D">D. Bonanno</a>, <a href="/search/nucl-ex?searchtype=author&query=Bongiovanni%2C+D">D. Bongiovanni</a>, <a href="/search/nucl-ex?searchtype=author&query=Borello-Lewin%2C+T">T. Borello-Lewin</a>, <a href="/search/nucl-ex?searchtype=author&query=Boztosun%2C+I">I. Boztosun</a>, <a href="/search/nucl-ex?searchtype=author&query=Branchina%2C+V">V. Branchina</a>, <a href="/search/nucl-ex?searchtype=author&query=Bussa%2C+M+P">M. P. Bussa</a>, <a href="/search/nucl-ex?searchtype=author&query=Calabrese%2C+S">S. Calabrese</a>, <a href="/search/nucl-ex?searchtype=author&query=Calabretta%2C+L">L. Calabretta</a>, <a href="/search/nucl-ex?searchtype=author&query=Calanna%2C+A">A. Calanna</a>, <a href="/search/nucl-ex?searchtype=author&query=Calvo%2C+D">D. Calvo</a>, <a href="/search/nucl-ex?searchtype=author&query=Carbone%2C+D">D. Carbone</a>, <a href="/search/nucl-ex?searchtype=author&query=Lomel%C3%AD%2C+E+R+C">E. R. Ch谩vez Lomel铆</a>, <a href="/search/nucl-ex?searchtype=author&query=Coban%2C+A">A. Coban</a>, <a href="/search/nucl-ex?searchtype=author&query=Colonna%2C+M">M. Colonna</a>, <a href="/search/nucl-ex?searchtype=author&query=D%27Agostino%2C+G">G. D'Agostino</a>, <a href="/search/nucl-ex?searchtype=author&query=De+Geronimo%2C+G">G. De Geronimo</a>, <a href="/search/nucl-ex?searchtype=author&query=Delaunay%2C+F">F. Delaunay</a>, <a href="/search/nucl-ex?searchtype=author&query=Deshmukh%2C+N">N. Deshmukh</a> , et al. (50 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2001.09648v1-abstract-short" style="display: inline;"> Neutrinoless double beta decay (0v\b{eta}\b{eta}) is considered the best potential resource to access the absolute neutrino mass scale. Moreover, if observed, it will signal that neutrinos are their own anti-particles (Majorana particles). Presently, this physics case is one of the most important research "beyond Standard Model" and might guide the way towards a Grand Unified Theory of fundamental… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2001.09648v1-abstract-full').style.display = 'inline'; document.getElementById('2001.09648v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2001.09648v1-abstract-full" style="display: none;"> Neutrinoless double beta decay (0v\b{eta}\b{eta}) is considered the best potential resource to access the absolute neutrino mass scale. Moreover, if observed, it will signal that neutrinos are their own anti-particles (Majorana particles). Presently, this physics case is one of the most important research "beyond Standard Model" and might guide the way towards a Grand Unified Theory of fundamental interactions. Since the 0v\b{eta}\b{eta} decay process involves nuclei, its analysis necessarily implies nuclear structure issues. In the NURE project, supported by a Starting Grant of the European Research Council (ERC), nuclear reactions of double charge-exchange (DCE) are used as a tool to extract information on the 0v\b{eta}\b{eta} Nuclear Matrix Elements. In DCE reactions and \b{eta}\b{eta} decay indeed the initial and final nuclear states are the same and the transition operators have similar structure. Thus the measurement of the DCE absolute cross-sections can give crucial information on \b{eta}\b{eta} matrix elements. In a wider view, the NUMEN international collaboration plans a major upgrade of the INFN-LNS facilities in the next years in order to increase the experimental production of nuclei of at least two orders of magnitude, thus making feasible a systematic study of all the cases of interest as candidates for 0v\b{eta}\b{eta}. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2001.09648v1-abstract-full').style.display = 'none'; document.getElementById('2001.09648v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 27 January, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> IOP Conf. Series: Journal of Physics: Conf. Series 966 (2018) 01202 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1910.03000">arXiv:1910.03000</a> <span> [<a href="https://arxiv.org/pdf/1910.03000">pdf</a>, <a href="https://arxiv.org/format/1910.03000">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Theory">nucl-th</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevC.100.034620">10.1103/PhysRevC.100.034620 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> 20Ne + 76Ge elastic and inelastic scattering at 306 MeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Spatafora%2C+A">A. Spatafora</a>, <a href="/search/nucl-ex?searchtype=author&query=Cappuzzello%2C+F">F. Cappuzzello</a>, <a href="/search/nucl-ex?searchtype=author&query=Carbone%2C+D">D. Carbone</a>, <a href="/search/nucl-ex?searchtype=author&query=Cavallaro%2C+M">M. Cavallaro</a>, <a href="/search/nucl-ex?searchtype=author&query=Lay%2C+J+A">J. A. Lay</a>, <a href="/search/nucl-ex?searchtype=author&query=Acosta%2C+L">L. Acosta</a>, <a href="/search/nucl-ex?searchtype=author&query=Agodi%2C+C">C. Agodi</a>, <a href="/search/nucl-ex?searchtype=author&query=Bonanno%2C+D">D. Bonanno</a>, <a href="/search/nucl-ex?searchtype=author&query=Bongiovanni%2C+D">D. Bongiovanni</a>, <a href="/search/nucl-ex?searchtype=author&query=Boztosun%2C+I">I. Boztosun</a>, <a href="/search/nucl-ex?searchtype=author&query=Brischetto%2C+G+A">G. A. Brischetto</a>, <a href="/search/nucl-ex?searchtype=author&query=Burrello%2C+S">S. Burrello</a>, <a href="/search/nucl-ex?searchtype=author&query=Calabrese%2C+S">S. Calabrese</a>, <a href="/search/nucl-ex?searchtype=author&query=Calvo%2C+D">D. Calvo</a>, <a href="/search/nucl-ex?searchtype=author&query=Lomel%C3%AD%2C+E+R+C">E. R. Ch脿vez Lomel铆</a>, <a href="/search/nucl-ex?searchtype=author&query=Ciraldo%2C+I">I. Ciraldo</a>, <a href="/search/nucl-ex?searchtype=author&query=Colonna%2C+M">M. Colonna</a>, <a href="/search/nucl-ex?searchtype=author&query=Delaunay%2C+F">F. Delaunay</a>, <a href="/search/nucl-ex?searchtype=author&query=Deshmukh%2C+N">N. Deshmukh</a>, <a href="/search/nucl-ex?searchtype=author&query=Ferreira%2C+J+L">J. L. Ferreira</a>, <a href="/search/nucl-ex?searchtype=author&query=Finocchiaro%2C+P">P. Finocchiaro</a>, <a href="/search/nucl-ex?searchtype=author&query=Fisichella%2C+M">M. Fisichella</a>, <a href="/search/nucl-ex?searchtype=author&query=Foti%2C+A">A. Foti</a>, <a href="/search/nucl-ex?searchtype=author&query=Gallo%2C+G">G. Gallo</a>, <a href="/search/nucl-ex?searchtype=author&query=Hacisalihoglu%2C+A">A. Hacisalihoglu</a> , et al. (24 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1910.03000v1-abstract-short" style="display: inline;"> Background: Double charge exchange (DCE) nuclear reactions have recently attracted much interest as tools to provide experimentally driven information about nuclear matrix elements of interest in the context of neutrinoless double-beta decay. In this framework, a good description of the reaction mechanism and a complete knowledge of the initial and final-state interactions are mandatory. Presently… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1910.03000v1-abstract-full').style.display = 'inline'; document.getElementById('1910.03000v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1910.03000v1-abstract-full" style="display: none;"> Background: Double charge exchange (DCE) nuclear reactions have recently attracted much interest as tools to provide experimentally driven information about nuclear matrix elements of interest in the context of neutrinoless double-beta decay. In this framework, a good description of the reaction mechanism and a complete knowledge of the initial and final-state interactions are mandatory. Presently, not enough is known about the details of the optical potentials and nuclear response to isospin operators for many of the projectile-target systems proposed for future DCE studies. Among these, the 20Ne + 76Ge DCE reaction is particularly relevant due to its connection with 76Ge double-beta decay. Purpose: We intend to characterize the initial-state interaction for the 20Ne + 76Ge reactions at 306 MeV bombarding energy and determine the optical potential and the role of the couplings between elastic channel and inelastic transitions to the first low-lying excited states. Methods: We determine the experimental elastic and inelastic scattering cross-section angular distributions, compare the theoretical predictions by adopting different models of optical potentials with the experimental data, and evaluate the coupling effect through the comparison of the distorted-wave Born approximation calculations with the coupled channels ones. Results: Optical models fail to describe the elastic angular distribution above the grazing angle (9.4掳). A correction in the geometry to effectively account for deformation of the involved nuclear systems improves the agreement up to about 14掳. Coupled channels effects are crucial to obtain good agreement at large angles in the elastic scattering cross section. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1910.03000v1-abstract-full').style.display = 'none'; document.getElementById('1910.03000v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 7 October, 2019; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2019. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Physical Review C 100, 034620 (2019) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1902.10631">arXiv:1902.10631</a> <span> [<a href="https://arxiv.org/pdf/1902.10631">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1140/epja/i2019-12802-7">10.1140/epja/i2019-12802-7 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of the 235U(n,f) cross section relative to the 6Li(n,t) and 10B(n,alpha) standards from thermal to 170 keV neutron energy range at n_TOF </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Amaducci%2C+S">S. Amaducci</a>, <a href="/search/nucl-ex?searchtype=author&query=Cosentino%2C+L">L. Cosentino</a>, <a href="/search/nucl-ex?searchtype=author&query=Barbagallo%2C+M">M. Barbagallo</a>, <a href="/search/nucl-ex?searchtype=author&query=Colonna%2C+N">N. Colonna</a>, <a href="/search/nucl-ex?searchtype=author&query=Mengoni%2C+A">A. Mengoni</a>, <a href="/search/nucl-ex?searchtype=author&query=Massimi%2C+C">C. Massimi</a>, <a href="/search/nucl-ex?searchtype=author&query=Meo%2C+S+L">S. Lo Meo</a>, <a href="/search/nucl-ex?searchtype=author&query=Finocchiaro%2C+P">P. Finocchiaro</a>, <a href="/search/nucl-ex?searchtype=author&query=Aberle%2C+O">O. Aberle</a>, <a href="/search/nucl-ex?searchtype=author&query=Andrzejewski%2C+J">J. Andrzejewski</a>, <a href="/search/nucl-ex?searchtype=author&query=Audouin%2C+L">L. Audouin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bacak%2C+M">M. Bacak</a>, <a href="/search/nucl-ex?searchtype=author&query=Balibrea%2C+J">J. Balibrea</a>, <a href="/search/nucl-ex?searchtype=author&query=Be%C4%8Dv%C3%A1%C5%99%2C+F">F. Be膷v谩艡</a>, <a href="/search/nucl-ex?searchtype=author&query=Berthoumieux%2C+E">E. Berthoumieux</a>, <a href="/search/nucl-ex?searchtype=author&query=Billowes%2C+J">J. Billowes</a>, <a href="/search/nucl-ex?searchtype=author&query=Bosnar%2C+D">D. Bosnar</a>, <a href="/search/nucl-ex?searchtype=author&query=Brown%2C+A">A. Brown</a>, <a href="/search/nucl-ex?searchtype=author&query=Caama%C3%B1o%2C+M">M. Caama帽o</a>, <a href="/search/nucl-ex?searchtype=author&query=Calvi%C3%B1o%2C+F">F. Calvi帽o</a>, <a href="/search/nucl-ex?searchtype=author&query=Calviani%2C+M">M. Calviani</a>, <a href="/search/nucl-ex?searchtype=author&query=Cano-Ott%2C+D">D. Cano-Ott</a>, <a href="/search/nucl-ex?searchtype=author&query=Cardella%2C+R">R. Cardella</a>, <a href="/search/nucl-ex?searchtype=author&query=Casanovas%2C+A">A. Casanovas</a>, <a href="/search/nucl-ex?searchtype=author&query=Cerutti%2C+F">F. Cerutti</a> , et al. (96 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1902.10631v2-abstract-short" style="display: inline;"> The 235U(n,f) cross section was measured in a wide energy range at n_TOF relative to 6Li(n,t) and 10B(n,alpha), with high resolution and in a wide energy range, with a setup based on a stack of six samples and six silicon detectors placed in the neutron beam. This allowed us to make a direct comparison of the reaction yields under the same experimental conditions, and taking into account the forwa… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1902.10631v2-abstract-full').style.display = 'inline'; document.getElementById('1902.10631v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1902.10631v2-abstract-full" style="display: none;"> The 235U(n,f) cross section was measured in a wide energy range at n_TOF relative to 6Li(n,t) and 10B(n,alpha), with high resolution and in a wide energy range, with a setup based on a stack of six samples and six silicon detectors placed in the neutron beam. This allowed us to make a direct comparison of the reaction yields under the same experimental conditions, and taking into account the forward/backward emission asymmetry. A hint of an anomaly in the 10梅30 keV neutron energy range had been previously observed in other experiments, indicating a cross section systematically lower by several percent relative to major evaluations. The present results indicate that the evaluated cross section in the 9梅18 keV neutron energy range is indeed overestimated, both in the recent updates of ENDF/B-VIII.0 and of the IAEA reference data. Furthermore, these new high-resolution data confirm the existence of resonance-like structures in the keV neutron energy region. The new, high accuracy results here reported may lead to a reduction of the uncertainty in the 1梅100 keV neutron energy region. Finally, the present data provide additional confidence on the recently re-evaluated cross section integral between 7.8 and 11 eV. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1902.10631v2-abstract-full').style.display = 'none'; document.getElementById('1902.10631v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 4 March, 2019; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 27 February, 2019; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2019. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">22 pages, 20 figures, submitted to PRC</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1811.08693">arXiv:1811.08693</a> <span> [<a href="https://arxiv.org/pdf/1811.08693">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1140/epja/i2018-12509-3">10.1140/epja/i2018-12509-3 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> The NUMEN project: NUclear Matrix Elements for Neutrinoless double beta decay </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Cappuzzello%2C+F">F. Cappuzzello</a>, <a href="/search/nucl-ex?searchtype=author&query=Agodi%2C+C">C. Agodi</a>, <a href="/search/nucl-ex?searchtype=author&query=Cavallaro%2C+M">M. Cavallaro</a>, <a href="/search/nucl-ex?searchtype=author&query=Carbone%2C+D">D. Carbone</a>, <a href="/search/nucl-ex?searchtype=author&query=Tudisco%2C+S">S. Tudisco</a>, <a href="/search/nucl-ex?searchtype=author&query=Presti%2C+D+L">D. Lo Presti</a>, <a href="/search/nucl-ex?searchtype=author&query=Oliveira%2C+J+R+B">J. R. B. Oliveira</a>, <a href="/search/nucl-ex?searchtype=author&query=Finocchiaro%2C+P">P. Finocchiaro</a>, <a href="/search/nucl-ex?searchtype=author&query=Colonna%2C+M">M. Colonna</a>, <a href="/search/nucl-ex?searchtype=author&query=Rifuggiato%2C+D">D. Rifuggiato</a>, <a href="/search/nucl-ex?searchtype=author&query=Calabretta%2C+L">L. Calabretta</a>, <a href="/search/nucl-ex?searchtype=author&query=Calvo%2C+D">D. Calvo</a>, <a href="/search/nucl-ex?searchtype=author&query=Pandola%2C+L">L. Pandola</a>, <a href="/search/nucl-ex?searchtype=author&query=Acosta%2C+L">L. Acosta</a>, <a href="/search/nucl-ex?searchtype=author&query=Auerbach%2C+N">N. Auerbach</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellone%2C+J">J. Bellone</a>, <a href="/search/nucl-ex?searchtype=author&query=Bijker%2C+R">R. Bijker</a>, <a href="/search/nucl-ex?searchtype=author&query=Bonanno%2C+D">D. Bonanno</a>, <a href="/search/nucl-ex?searchtype=author&query=Bongiovanni%2C+D">D. Bongiovanni</a>, <a href="/search/nucl-ex?searchtype=author&query=Borello-Lewin%2C+T">T. Borello-Lewin</a>, <a href="/search/nucl-ex?searchtype=author&query=Boztosun%2C+I">I. Boztosun</a>, <a href="/search/nucl-ex?searchtype=author&query=Brunasso%2C+O">O. Brunasso</a>, <a href="/search/nucl-ex?searchtype=author&query=Burrello%2C+S">S. Burrello</a>, <a href="/search/nucl-ex?searchtype=author&query=Calabrese%2C+S">S. Calabrese</a>, <a href="/search/nucl-ex?searchtype=author&query=Calanna%2C+A">A. Calanna</a> , et al. (46 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1811.08693v1-abstract-short" style="display: inline;"> The article describes the main achievements of the NUMEN project together with an updated and detailed overview of the related R&D activities and theoretical developments. NUMEN proposes an innovative technique to access the nuclear matrix elements entering the expression of the lifetime of the double beta decay by cross section measurements of heavy-ion induced Double Charge Exchange (DCE) reacti… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1811.08693v1-abstract-full').style.display = 'inline'; document.getElementById('1811.08693v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1811.08693v1-abstract-full" style="display: none;"> The article describes the main achievements of the NUMEN project together with an updated and detailed overview of the related R&D activities and theoretical developments. NUMEN proposes an innovative technique to access the nuclear matrix elements entering the expression of the lifetime of the double beta decay by cross section measurements of heavy-ion induced Double Charge Exchange (DCE) reactions. Despite the two processes, namely neutrinoless double beta decay and DCE reactions, are triggered by the weak and strong interaction respectively, important analogies are suggested. The basic point is the coincidence of the initial and final state many-body wave-functions in the two types of processes and the formal similarity of the transition operators. First experimental results obtained at the INFN-LNS laboratory for the 40Ca(18O,18Ne)40Ar reaction at 270 MeV, give encouraging indication on the capability of the proposed technique to access relevant quantitative information. The two major aspects for this project are the K800 Superconducting Cyclotron and MAGNEX spectrometer. The former is used for the acceleration of the required high resolution and low emittance heavy ion beams and the latter is the large acceptance magnetic spectrometer for the detection of the ejectiles. The use of the high-order trajectory reconstruction technique, implemented in MAGNEX, allows to reach the experimental resolution and sensitivity required for the accurate measurement of the DCE cross sections at forward angles. However, the tiny values of such cross sections and the resolution requirements demand beam intensities much larger than manageable with the present facility. The on-going upgrade of the INFN-LNS facilities in this perspective is part of the NUMEN project and will be discussed in the article. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1811.08693v1-abstract-full').style.display = 'none'; document.getElementById('1811.08693v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 21 November, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2018. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1806.03050">arXiv:1806.03050</a> <span> [<a href="https://arxiv.org/pdf/1806.03050">pdf</a>, <a href="https://arxiv.org/format/1806.03050">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevLett.121.042701">10.1103/PhysRevLett.121.042701 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> The $^{7}$Be($\boldsymbol{n,p}$)$^{7}$Li reaction and the Cosmological Lithium Problem: measurement of the cross section in a wide energy range at n_TOF (CERN) </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Damone%2C+L">L. Damone</a>, <a href="/search/nucl-ex?searchtype=author&query=Barbagallo%2C+M">M. Barbagallo</a>, <a href="/search/nucl-ex?searchtype=author&query=Mastromarco%2C+M">M. Mastromarco</a>, <a href="/search/nucl-ex?searchtype=author&query=Mengoni%2C+A">A. Mengoni</a>, <a href="/search/nucl-ex?searchtype=author&query=Cosentino%2C+L">L. Cosentino</a>, <a href="/search/nucl-ex?searchtype=author&query=Maugeri%2C+E">E. Maugeri</a>, <a href="/search/nucl-ex?searchtype=author&query=Heinitz%2C+S">S. Heinitz</a>, <a href="/search/nucl-ex?searchtype=author&query=Schumann%2C+D">D. Schumann</a>, <a href="/search/nucl-ex?searchtype=author&query=Dressler%2C+R">R. Dressler</a>, <a href="/search/nucl-ex?searchtype=author&query=K%C3%A4ppeler%2C+F">F. K盲ppeler</a>, <a href="/search/nucl-ex?searchtype=author&query=Colonna%2C+N">N. Colonna</a>, <a href="/search/nucl-ex?searchtype=author&query=Finocchiaro%2C+P">P. Finocchiaro</a>, <a href="/search/nucl-ex?searchtype=author&query=Andrzejewski%2C+J">J. Andrzejewski</a>, <a href="/search/nucl-ex?searchtype=author&query=Perkowski%2C+J">J. Perkowski</a>, <a href="/search/nucl-ex?searchtype=author&query=Gawlik%2C+A">A. Gawlik</a>, <a href="/search/nucl-ex?searchtype=author&query=Aberle%2C+O">O. Aberle</a>, <a href="/search/nucl-ex?searchtype=author&query=Altstadt%2C+S">S. Altstadt</a>, <a href="/search/nucl-ex?searchtype=author&query=Ayranov%2C+M">M. Ayranov</a>, <a href="/search/nucl-ex?searchtype=author&query=Audouin%2C+L">L. Audouin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bacak%2C+M">M. Bacak</a>, <a href="/search/nucl-ex?searchtype=author&query=Balibrea-Correa%2C+J">J. Balibrea-Correa</a>, <a href="/search/nucl-ex?searchtype=author&query=Ballof%2C+J">J. Ballof</a>, <a href="/search/nucl-ex?searchtype=author&query=B%C3%A9cares%2C+V">V. B茅cares</a>, <a href="/search/nucl-ex?searchtype=author&query=Be%C4%8Dv%C3%A1%C5%99%2C+F">F. Be膷v谩艡</a>, <a href="/search/nucl-ex?searchtype=author&query=Beinrucker%2C+C">C. Beinrucker</a> , et al. (133 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1806.03050v1-abstract-short" style="display: inline;"> We report on the measurement of the $^{7}$Be($n, p$)$^{7}$Li cross section from thermal to approximately 325 keV neutron energy, performed in the high-flux experimental area (EAR2) of the n\_TOF facility at CERN. This reaction plays a key role in the lithium yield of the Big Bang Nucleosynthesis (BBN) for standard cosmology. The only two previous time-of-flight measurements performed on this react… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1806.03050v1-abstract-full').style.display = 'inline'; document.getElementById('1806.03050v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1806.03050v1-abstract-full" style="display: none;"> We report on the measurement of the $^{7}$Be($n, p$)$^{7}$Li cross section from thermal to approximately 325 keV neutron energy, performed in the high-flux experimental area (EAR2) of the n\_TOF facility at CERN. This reaction plays a key role in the lithium yield of the Big Bang Nucleosynthesis (BBN) for standard cosmology. The only two previous time-of-flight measurements performed on this reaction did not cover the energy window of interest for BBN, and showed a large discrepancy between each other. The measurement was performed with a Si-telescope, and a high-purity sample produced by implantation of a $^{7}$Be ion beam at the ISOLDE facility at CERN. While a significantly higher cross section is found at low-energy, relative to current evaluations, in the region of BBN interest the present results are consistent with the values inferred from the time-reversal $^{7}$Li($p, n$)$^{7}$Be reaction, thus yielding only a relatively minor improvement on the so-called Cosmological Lithium Problem (CLiP). The relevance of these results on the near-threshold neutron production in the p+$^{7}$Li reaction is also discussed. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1806.03050v1-abstract-full').style.display = 'none'; document.getElementById('1806.03050v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 8 June, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2018. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 121, 042701 (2018) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1805.04149">arXiv:1805.04149</a> <span> [<a href="https://arxiv.org/pdf/1805.04149">pdf</a>, <a href="https://arxiv.org/format/1805.04149">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1140/epja/i2019-12692-7">10.1140/epja/i2019-12692-7 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Cross section measurements of $^{155,157}$Gd(n,$纬$) induced by thermal and epithermal neutrons </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Mastromarco%2C+M">M. Mastromarco</a>, <a href="/search/nucl-ex?searchtype=author&query=Manna%2C+A">A. Manna</a>, <a href="/search/nucl-ex?searchtype=author&query=Aberle%2C+O">O. Aberle</a>, <a href="/search/nucl-ex?searchtype=author&query=Amaducci%2C+S">S. Amaducci</a>, <a href="/search/nucl-ex?searchtype=author&query=Andrzejewski%2C+J">J. Andrzejewski</a>, <a href="/search/nucl-ex?searchtype=author&query=Audouin%2C+L">L. Audouin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bacak%2C+M">M. Bacak</a>, <a href="/search/nucl-ex?searchtype=author&query=Balibrea%2C+J">J. Balibrea</a>, <a href="/search/nucl-ex?searchtype=author&query=Barbagallo%2C+M">M. Barbagallo</a>, <a href="/search/nucl-ex?searchtype=author&query=Becvar%2C+F">F. Becvar</a>, <a href="/search/nucl-ex?searchtype=author&query=Berthoumieux%2C+E">E. Berthoumieux</a>, <a href="/search/nucl-ex?searchtype=author&query=Billowes%2C+J">J. Billowes</a>, <a href="/search/nucl-ex?searchtype=author&query=Bosnar%2C+D">D. Bosnar</a>, <a href="/search/nucl-ex?searchtype=author&query=Brown%2C+A">A. Brown</a>, <a href="/search/nucl-ex?searchtype=author&query=Caamano%2C+M">M. Caamano</a>, <a href="/search/nucl-ex?searchtype=author&query=Calvino%2C+F">F. Calvino</a>, <a href="/search/nucl-ex?searchtype=author&query=Calviani%2C+M">M. Calviani</a>, <a href="/search/nucl-ex?searchtype=author&query=Cano-Ott%2C+D">D. Cano-Ott</a>, <a href="/search/nucl-ex?searchtype=author&query=Cardella%2C+R">R. Cardella</a>, <a href="/search/nucl-ex?searchtype=author&query=Casanovas%2C+A">A. Casanovas</a>, <a href="/search/nucl-ex?searchtype=author&query=Castelluccio%2C+D+M">D. M. Castelluccio</a>, <a href="/search/nucl-ex?searchtype=author&query=Cerutti%2C+F">F. Cerutti</a>, <a href="/search/nucl-ex?searchtype=author&query=Chen%2C+Y+H">Y. H. Chen</a>, <a href="/search/nucl-ex?searchtype=author&query=Chiaveri%2C+E">E. Chiaveri</a>, <a href="/search/nucl-ex?searchtype=author&query=Clai%2C+G">G. Clai</a> , et al. (99 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1805.04149v1-abstract-short" style="display: inline;"> Neutron capture measurements on $^{155}$Gd and $^{157}$Gd were performed using the time-of-flight technique at the n\_TOF facility at CERN. Four samples in form of self-sustaining metallic discs isotopically enriched in $^{155}$Gd and $^{157}$Gd were used. The measurements were carried out at the experimental area (EAR1) at 185 m from the neutron source, with an array of 4 C$_6$D$_6$ liquid scinti… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1805.04149v1-abstract-full').style.display = 'inline'; document.getElementById('1805.04149v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1805.04149v1-abstract-full" style="display: none;"> Neutron capture measurements on $^{155}$Gd and $^{157}$Gd were performed using the time-of-flight technique at the n\_TOF facility at CERN. Four samples in form of self-sustaining metallic discs isotopically enriched in $^{155}$Gd and $^{157}$Gd were used. The measurements were carried out at the experimental area (EAR1) at 185 m from the neutron source, with an array of 4 C$_6$D$_6$ liquid scintillation detectors. The capture cross sections of $^{155}$Gd and $^{157}$Gd at neutron kinetic energy of 0.0253 eV have been estimated to be 62.2(2.2) kb and 239.8(9.3) kb, respectively, thus up to 6\% different relative to the ones reported in the nuclear data libraries. A resonance shape analysis has been performed in the resolved resonance region up to 180 eV and 300 eV, respectively, in average resonance parameters have been found in good agreement with evaluations. Above these energies the observed resonance-like structures in the cross section have been tentatively characterised in terms of resonance energy and area up to 1 keV. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1805.04149v1-abstract-full').style.display = 'none'; document.getElementById('1805.04149v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 10 May, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2018. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Eur. Phys. J. A (2019) 55: 9 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1803.05701">arXiv:1803.05701</a> <span>  </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Cosmology and Nongalactic Astrophysics">astro-ph.CO</span> </div> </div> <p class="title is-5 mathjax"> The $^{7}$Be(n,p)$^{7}$Li reaction and the Cosmological Lithium Problem: measurement of the cross section in a wide energy range at n_TOF (CERN) </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Damone%2C+L">L. Damone</a>, <a href="/search/nucl-ex?searchtype=author&query=Barbagallo%2C+M">M. Barbagallo</a>, <a href="/search/nucl-ex?searchtype=author&query=Mastromarco%2C+M">M. Mastromarco</a>, <a href="/search/nucl-ex?searchtype=author&query=Mengoni%2C+A">A. Mengoni</a>, <a href="/search/nucl-ex?searchtype=author&query=Cosentino%2C+L">L. Cosentino</a>, <a href="/search/nucl-ex?searchtype=author&query=Maugeri%2C+E">E. Maugeri</a>, <a href="/search/nucl-ex?searchtype=author&query=Heinitz%2C+S">S. Heinitz</a>, <a href="/search/nucl-ex?searchtype=author&query=Schumann%2C+D">D. Schumann</a>, <a href="/search/nucl-ex?searchtype=author&query=Dressler%2C+R">R. Dressler</a>, <a href="/search/nucl-ex?searchtype=author&query=K%C3%A4ppeler%2C+F">F. K盲ppeler</a>, <a href="/search/nucl-ex?searchtype=author&query=Colonna%2C+N">N. Colonna</a>, <a href="/search/nucl-ex?searchtype=author&query=Finocchiaro%2C+P">P. Finocchiaro</a>, <a href="/search/nucl-ex?searchtype=author&query=Andrzejewski%2C+J">J. Andrzejewski</a>, <a href="/search/nucl-ex?searchtype=author&query=Perkowski%2C+J">J. Perkowski</a>, <a href="/search/nucl-ex?searchtype=author&query=Gawlik%2C+A">A. Gawlik</a>, <a href="/search/nucl-ex?searchtype=author&query=Aberle%2C+O">O. Aberle</a>, <a href="/search/nucl-ex?searchtype=author&query=Altstadt%2C+S">S. Altstadt</a>, <a href="/search/nucl-ex?searchtype=author&query=Ayranov%2C+M">M. Ayranov</a>, <a href="/search/nucl-ex?searchtype=author&query=Audouin%2C+L">L. Audouin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bacak%2C+M">M. Bacak</a>, <a href="/search/nucl-ex?searchtype=author&query=Balibrea-Correa%2C+J">J. Balibrea-Correa</a>, <a href="/search/nucl-ex?searchtype=author&query=Ballof%2C+J">J. Ballof</a>, <a href="/search/nucl-ex?searchtype=author&query=B%C3%A9cares%2C+V">V. B茅cares</a>, <a href="/search/nucl-ex?searchtype=author&query=Be%C4%8Dv%C3%A1%C5%99%2C+F">F. Be膷v谩艡</a>, <a href="/search/nucl-ex?searchtype=author&query=Beinrucker%2C+C">C. Beinrucker</a> , et al. (133 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1803.05701v2-abstract-short" style="display: inline;"> We report on the measurement of the $^{7}$Be($n, p$)$^{7}$Li cross section from thermal to approximately 325 keV neutron energy, performed in the high-flux experimental area (EAR2) of the n_TOF facility at CERN. This reaction plays a key role in the lithium yield of the Big Bang Nucleosynthesis (BBN) for standard cosmology. The only two previous time-of-flight measurements performed on this reacti… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1803.05701v2-abstract-full').style.display = 'inline'; document.getElementById('1803.05701v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1803.05701v2-abstract-full" style="display: none;"> We report on the measurement of the $^{7}$Be($n, p$)$^{7}$Li cross section from thermal to approximately 325 keV neutron energy, performed in the high-flux experimental area (EAR2) of the n_TOF facility at CERN. This reaction plays a key role in the lithium yield of the Big Bang Nucleosynthesis (BBN) for standard cosmology. The only two previous time-of-flight measurements performed on this reaction did not cover the energy window of interest for BBN, and showed a large discrepancy between each other. The measurement was performed with a Si-telescope, and a high-purity sample produced by implantation of a $^{7}$Be ion beam at the ISOLDE facility at CERN. While a significantly higher cross section is found at low-energy, relative to current evaluations, in the region of BBN interest the present results are consistent with the values inferred from the time-reversal $^{7}$Li($p, n$)$^{7}$Be reaction, thus yielding only a relatively minor improvement on the so-called Cosmological Lithium Problem (CLiP). The relevance of these results on the near-threshold neutron production in the p+$^{7}$Li reaction is also discussed. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1803.05701v2-abstract-full').style.display = 'none'; document.getElementById('1803.05701v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 12 January, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 15 March, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2018. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">arXiv admin note: This submission has been withdrawn by arXiv administrators as it is a duplicate of arXiv:1806.03050. Please refer to that document for any more recent versions</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1711.08459">arXiv:1711.08459</a> <span> [<a href="https://arxiv.org/pdf/1711.08459">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.nima.2017.10.095">10.1016/j.nima.2017.10.095 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Mini-phoswich and SiPM for Heavy Ion Detection </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Carbone%2C+D">D. Carbone</a>, <a href="/search/nucl-ex?searchtype=author&query=Finocchiaro%2C+P">P. Finocchiaro</a>, <a href="/search/nucl-ex?searchtype=author&query=Agodi%2C+C">C. Agodi</a>, <a href="/search/nucl-ex?searchtype=author&query=Bonanno%2C+D">D. Bonanno</a>, <a href="/search/nucl-ex?searchtype=author&query=Bongiovanni%2C+D">D. Bongiovanni</a>, <a href="/search/nucl-ex?searchtype=author&query=Cavallaro%2C+M">M. Cavallaro</a>, <a href="/search/nucl-ex?searchtype=author&query=Cappuzzello%2C+F">F. Cappuzzello</a>, <a href="/search/nucl-ex?searchtype=author&query=Cosentino%2C+L">L. Cosentino</a>, <a href="/search/nucl-ex?searchtype=author&query=Gallo%2C+G">G. Gallo</a>, <a href="/search/nucl-ex?searchtype=author&query=Longhitano%2C+F">F. Longhitano</a>, <a href="/search/nucl-ex?searchtype=author&query=Presti%2C+D+L">D. Lo Presti</a>, <a href="/search/nucl-ex?searchtype=author&query=Reito%2C+S">S. Reito</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1711.08459v1-abstract-short" style="display: inline;"> The possibility to use a mini-phoswich detector to identify ions in the region of Z ~ 10 is explored in the framework of the NUMEN project. The NUMEN program, aimed at the investigation of the nuclear matrix elements connected to the neutrinoless double beta decay by means of double charge exchange nuclear reactions, foresees very high fluencies, which prevent the use of standard silicon as stop d… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1711.08459v1-abstract-full').style.display = 'inline'; document.getElementById('1711.08459v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1711.08459v1-abstract-full" style="display: none;"> The possibility to use a mini-phoswich detector to identify ions in the region of Z ~ 10 is explored in the framework of the NUMEN project. The NUMEN program, aimed at the investigation of the nuclear matrix elements connected to the neutrinoless double beta decay by means of double charge exchange nuclear reactions, foresees very high fluencies, which prevent the use of standard silicon as stop detectors. The need of reasonable radiation hardness, together with a total energy resolution around 2% and a high granularity, makes scintillators possible candidates. Promising results are obtained using an array of plastic + inorganic phoswich scintillators readout by means of Silicon Photo Multipliers. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1711.08459v1-abstract-full').style.display = 'none'; document.getElementById('1711.08459v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 22 November, 2017; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2017. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1703.08575">arXiv:1703.08575</a> <span> [<a href="https://arxiv.org/pdf/1703.08575">pdf</a>, <a href="https://arxiv.org/ps/1703.08575">ps</a>, <a href="https://arxiv.org/format/1703.08575">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1140/epja/i2017-12341-3">10.1140/epja/i2017-12341-3 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Analysis of the exclusive final state npe$^+$e$^-$ in quasi-free np reaction </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Adamczewski-Musch%2C+J">J. Adamczewski-Musch</a>, <a href="/search/nucl-ex?searchtype=author&query=Arnold%2C+O">O. Arnold</a>, <a href="/search/nucl-ex?searchtype=author&query=Atomssa%2C+E+T">E. T. Atomssa</a>, <a href="/search/nucl-ex?searchtype=author&query=Behnke%2C+C">C. Behnke</a>, <a href="/search/nucl-ex?searchtype=author&query=Belounnas%2C+A">A. Belounnas</a>, <a href="/search/nucl-ex?searchtype=author&query=Belyaev%2C+A">A. Belyaev</a>, <a href="/search/nucl-ex?searchtype=author&query=Berger-Chen%2C+J+C">J. C. Berger-Chen</a>, <a href="/search/nucl-ex?searchtype=author&query=Biernat%2C+J">J. Biernat</a>, <a href="/search/nucl-ex?searchtype=author&query=Blanco%2C+A">A. Blanco</a>, <a href="/search/nucl-ex?searchtype=author&query=Blume%2C+C">C. Blume</a>, <a href="/search/nucl-ex?searchtype=author&query=B%C3%B6hmer%2C+M">M. B枚hmer</a>, <a href="/search/nucl-ex?searchtype=author&query=Bordalo%2C+P">P. Bordalo</a>, <a href="/search/nucl-ex?searchtype=author&query=Chernenko%2C+S">S. Chernenko</a>, <a href="/search/nucl-ex?searchtype=author&query=Chlad%2C+L">L. Chlad</a>, <a href="/search/nucl-ex?searchtype=author&query=Deveaux%2C+C">C. Deveaux</a>, <a href="/search/nucl-ex?searchtype=author&query=Dreyer%2C+J">J. Dreyer</a>, <a href="/search/nucl-ex?searchtype=author&query=Dybczak%2C+A">A. Dybczak</a>, <a href="/search/nucl-ex?searchtype=author&query=Epple%2C+E">E. Epple</a>, <a href="/search/nucl-ex?searchtype=author&query=Fabbietti%2C+L">L. Fabbietti</a>, <a href="/search/nucl-ex?searchtype=author&query=Fateev%2C+O">O. Fateev</a>, <a href="/search/nucl-ex?searchtype=author&query=Filip%2C+P">P. Filip</a>, <a href="/search/nucl-ex?searchtype=author&query=Finocchiaro%2C+P">P. Finocchiaro</a>, <a href="/search/nucl-ex?searchtype=author&query=Fonte%2C+P">P. Fonte</a>, <a href="/search/nucl-ex?searchtype=author&query=Franco%2C+C">C. Franco</a>, <a href="/search/nucl-ex?searchtype=author&query=Friese%2C+J">J. Friese</a> , et al. (92 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1703.08575v1-abstract-short" style="display: inline;"> We report on the investigation of dielectron production in tagged quasi-free neutron-proton collisions by using a deuteron beam of kinetic energy 1.25 GeV/u inpinging on a liquid hydrogen target. Our measurements with HADES confirm a significant excess of $e^+e^-$ pairs above the $蟺^{0}$ mass in the exclusive channel $dp \to npe^{+}e^{-}(p_{spect})$ as compared to the exclusive channel… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1703.08575v1-abstract-full').style.display = 'inline'; document.getElementById('1703.08575v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1703.08575v1-abstract-full" style="display: none;"> We report on the investigation of dielectron production in tagged quasi-free neutron-proton collisions by using a deuteron beam of kinetic energy 1.25 GeV/u inpinging on a liquid hydrogen target. Our measurements with HADES confirm a significant excess of $e^+e^-$ pairs above the $蟺^{0}$ mass in the exclusive channel $dp \to npe^{+}e^{-}(p_{spect})$ as compared to the exclusive channel $ppe^{+}e^{-}$ measured in proton-proton collisions at the same energy. That excess points to different bremsstrahlung production mechanisms. Two models were evaluated for the role of the charged pion exchange between nucleons and double-$螖$ excitation combined with intermediate $蟻$-meson production. Differential cross sections as a function of the $e^+e^-$ invariant mass and of the angles of the virtual photon, proton and electrons provide valuable constraints and encourage further investigations on both experimental and theoretical side. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1703.08575v1-abstract-full').style.display = 'none'; document.getElementById('1703.08575v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 24 March, 2017; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2017. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">12 pages, 7 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">ACM Class:</span> J.2 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Eur. Phys. J. A 53 (2017) 149 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1703.08398">arXiv:1703.08398</a> <span> [<a href="https://arxiv.org/pdf/1703.08398">pdf</a>, <a href="https://arxiv.org/ps/1703.08398">ps</a>, <a href="https://arxiv.org/format/1703.08398">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1140/epja/i2015-15137-5">10.1140/epja/i2015-15137-5 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Analysis of pion production data measured by HADES in proton-proton collisions at 1.25 GeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/nucl-ex?searchtype=author&query=Balanda%2C+A">A. Balanda</a>, <a href="/search/nucl-ex?searchtype=author&query=Belver%2C+D">D. Belver</a>, <a href="/search/nucl-ex?searchtype=author&query=Belyaev%2C+A">A. Belyaev</a>, <a href="/search/nucl-ex?searchtype=author&query=Berger-Chen%2C+J+C">J. C. Berger-Chen</a>, <a href="/search/nucl-ex?searchtype=author&query=Blanco%2C+A">A. Blanco</a>, <a href="/search/nucl-ex?searchtype=author&query=B%C3%B6hmer%2C+M">M. B枚hmer</a>, <a href="/search/nucl-ex?searchtype=author&query=Boyard%2C+J+L">J. L. Boyard</a>, <a href="/search/nucl-ex?searchtype=author&query=Cabanelas%2C+P">P. Cabanelas</a>, <a href="/search/nucl-ex?searchtype=author&query=Chernenko%2C+S">S. Chernenko</a>, <a href="/search/nucl-ex?searchtype=author&query=Dybczak%2C+A">A. Dybczak</a>, <a href="/search/nucl-ex?searchtype=author&query=Epple%2C+E">E. Epple</a>, <a href="/search/nucl-ex?searchtype=author&query=Fabbietti%2C+L">L. Fabbietti</a>, <a href="/search/nucl-ex?searchtype=author&query=Fateev%2C+O">O. Fateev</a>, <a href="/search/nucl-ex?searchtype=author&query=Finocchiaro%2C+P">P. Finocchiaro</a>, <a href="/search/nucl-ex?searchtype=author&query=Fonte%2C+P">P. Fonte</a>, <a href="/search/nucl-ex?searchtype=author&query=Friese%2C+J">J. Friese</a>, <a href="/search/nucl-ex?searchtype=author&query=Fr%C3%B6hlich%2C+I">I. Fr枚hlich</a>, <a href="/search/nucl-ex?searchtype=author&query=Galatyuk%2C+T">T. Galatyuk</a>, <a href="/search/nucl-ex?searchtype=author&query=Garz%C3%B3n%2C+J+A">J. A. Garz贸n</a>, <a href="/search/nucl-ex?searchtype=author&query=Gernh%C3%A4user%2C+R">R. Gernh盲user</a>, <a href="/search/nucl-ex?searchtype=author&query=G%C3%B6bel%2C+K">K. G枚bel</a>, <a href="/search/nucl-ex?searchtype=author&query=Golubeva%2C+M">M. Golubeva</a>, <a href="/search/nucl-ex?searchtype=author&query=Gonz%C3%A1lez-D%C3%ADaz%2C+D">D. Gonz谩lez-D铆az</a>, <a href="/search/nucl-ex?searchtype=author&query=Guber%2C+F">F. Guber</a> , et al. (75 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1703.08398v1-abstract-short" style="display: inline;"> Baryon resonance production in proton-proton collisions at a kinetic beam energy of 1.25 GeV is investigated. The multi-differential data were measured by the HADES collaboration. Exclusive channels with one pion in the final state ($np蟺^{+}$ and $pp蟺^{0}$) were put to extended studies based on various observables in the framework of a one-pion exchange model and with solutions obtained within the… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1703.08398v1-abstract-full').style.display = 'inline'; document.getElementById('1703.08398v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1703.08398v1-abstract-full" style="display: none;"> Baryon resonance production in proton-proton collisions at a kinetic beam energy of 1.25 GeV is investigated. The multi-differential data were measured by the HADES collaboration. Exclusive channels with one pion in the final state ($np蟺^{+}$ and $pp蟺^{0}$) were put to extended studies based on various observables in the framework of a one-pion exchange model and with solutions obtained within the framework of a partial wave analysis (PWA) of the Bonn-Gatchina group. The results of the PWA confirm the dominant contribution of the $螖$(1232), yet with a sizable impact of the $N$(1440) and non-resonant partial waves. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1703.08398v1-abstract-full').style.display = 'none'; document.getElementById('1703.08398v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 24 March, 2017; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2017. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">12 pages, 6 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">ACM Class:</span> J.2 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Eur. Phys. J. A 51 (2015) 137 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1703.07840">arXiv:1703.07840</a> <span> [<a href="https://arxiv.org/pdf/1703.07840">pdf</a>, <a href="https://arxiv.org/ps/1703.07840">ps</a>, <a href="https://arxiv.org/format/1703.07840">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevC.95.065205">10.1103/PhysRevC.95.065205 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> $螖$(1232) Dalitz decay in proton-proton collisions at T=1.25 GeV measured with HADES </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Adamczewski-Musch%2C+J">J. Adamczewski-Musch</a>, <a href="/search/nucl-ex?searchtype=author&query=Arnold%2C+O">O. Arnold</a>, <a href="/search/nucl-ex?searchtype=author&query=Atomssa%2C+E+T">E. T. Atomssa</a>, <a href="/search/nucl-ex?searchtype=author&query=Behnke%2C+C">C. Behnke</a>, <a href="/search/nucl-ex?searchtype=author&query=Belounnas%2C+A">A. Belounnas</a>, <a href="/search/nucl-ex?searchtype=author&query=Belyaev%2C+A">A. Belyaev</a>, <a href="/search/nucl-ex?searchtype=author&query=Berger-Chen%2C+J+C">J. C. Berger-Chen</a>, <a href="/search/nucl-ex?searchtype=author&query=Biernat%2C+J">J. Biernat</a>, <a href="/search/nucl-ex?searchtype=author&query=Blanco%2C+A">A. Blanco</a>, <a href="/search/nucl-ex?searchtype=author&query=Blume%2C+C">C. Blume</a>, <a href="/search/nucl-ex?searchtype=author&query=B%C3%B6hmer%2C+M">M. B枚hmer</a>, <a href="/search/nucl-ex?searchtype=author&query=Bordalo%2C+P">P. Bordalo</a>, <a href="/search/nucl-ex?searchtype=author&query=Chernenko%2C+S">S. Chernenko</a>, <a href="/search/nucl-ex?searchtype=author&query=Chlad%2C+L">L. Chlad</a>, <a href="/search/nucl-ex?searchtype=author&query=Deveaux%2C+C">C. Deveaux</a>, <a href="/search/nucl-ex?searchtype=author&query=Dreyer%2C+J">J. Dreyer</a>, <a href="/search/nucl-ex?searchtype=author&query=Dybczak%2C+A">A. Dybczak</a>, <a href="/search/nucl-ex?searchtype=author&query=Epple%2C+E">E. Epple</a>, <a href="/search/nucl-ex?searchtype=author&query=Fabbietti%2C+L">L. Fabbietti</a>, <a href="/search/nucl-ex?searchtype=author&query=Fateev%2C+O">O. Fateev</a>, <a href="/search/nucl-ex?searchtype=author&query=Filip%2C+P">P. Filip</a>, <a href="/search/nucl-ex?searchtype=author&query=Finocchiaro%2C+P">P. Finocchiaro</a>, <a href="/search/nucl-ex?searchtype=author&query=Fonte%2C+P">P. Fonte</a>, <a href="/search/nucl-ex?searchtype=author&query=Franco%2C+C">C. Franco</a>, <a href="/search/nucl-ex?searchtype=author&query=Friese%2C+J">J. Friese</a> , et al. (92 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1703.07840v2-abstract-short" style="display: inline;"> We report on the investigation of $螖$(1232) production and decay in proton-proton collisions at a kinetic energy of 1.25 GeV measured with HADES. Exclusive dilepton decay channels $ppe^{+}e^{-}$ and $ppe^{+}e^{-}纬$ have been studied and compared with the partial wave analysis of the hadronic $pp蟺^{0}$ channel. They allow to access both $螖^+ \to p蟺^0(e^+e^-纬)$ and $螖^+ \to pe^+e^-$ Dalitz decay cha… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1703.07840v2-abstract-full').style.display = 'inline'; document.getElementById('1703.07840v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1703.07840v2-abstract-full" style="display: none;"> We report on the investigation of $螖$(1232) production and decay in proton-proton collisions at a kinetic energy of 1.25 GeV measured with HADES. Exclusive dilepton decay channels $ppe^{+}e^{-}$ and $ppe^{+}e^{-}纬$ have been studied and compared with the partial wave analysis of the hadronic $pp蟺^{0}$ channel. They allow to access both $螖^+ \to p蟺^0(e^+e^-纬)$ and $螖^+ \to pe^+e^-$ Dalitz decay channels. The perfect reconstruction of the well known $蟺^0$ Dalitz decay serves as a proof of the consistency of the analysis. The $螖$ Dalitz decay is identified for the first time and the sensitivity to N-$螖$ transition form factors is tested. The $螖$(1232) Dalitz decay branching ratio is also determined for the first time; our result is (4.19 $\pm$ 0.62 syst. $\pm$ 0.34 stat.) $\times $ 10$^{-5}$, albeit with some model dependence. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1703.07840v2-abstract-full').style.display = 'none'; document.getElementById('1703.07840v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 24 March, 2017; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 22 March, 2017; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2017. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">13 pages, 7 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">ACM Class:</span> J.2 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. C 95, 065205 (2017) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1606.09420">arXiv:1606.09420</a> <span> [<a href="https://arxiv.org/pdf/1606.09420">pdf</a>, <a href="https://arxiv.org/ps/1606.09420">ps</a>, <a href="https://arxiv.org/format/1606.09420">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevLett.117.152701">10.1103/PhysRevLett.117.152701 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> The 7Be(n,alpha)4He reaction and the Cosmological Lithium Problem: measurement of the cross section in a wide energy range at n_TOF (CERN) </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Barbagallo%2C+M">M. Barbagallo</a>, <a href="/search/nucl-ex?searchtype=author&query=Musumarra%2C+A">A. Musumarra</a>, <a href="/search/nucl-ex?searchtype=author&query=Cosentino%2C+L">L. Cosentino</a>, <a href="/search/nucl-ex?searchtype=author&query=Maugeri%2C+E">E. Maugeri</a>, <a href="/search/nucl-ex?searchtype=author&query=Heinitz%2C+S">S. Heinitz</a>, <a href="/search/nucl-ex?searchtype=author&query=Mengoni%2C+A">A. Mengoni</a>, <a href="/search/nucl-ex?searchtype=author&query=Dressler%2C+R">R. Dressler</a>, <a href="/search/nucl-ex?searchtype=author&query=Schumann%2C+D">D. Schumann</a>, <a href="/search/nucl-ex?searchtype=author&query=Kaeppeler%2C+F">F. Kaeppeler</a>, <a href="/search/nucl-ex?searchtype=author&query=Colonna%2C+N">N. Colonna</a>, <a href="/search/nucl-ex?searchtype=author&query=Finocchiaro%2C+P">P. Finocchiaro</a>, <a href="/search/nucl-ex?searchtype=author&query=Ayranov%2C+M">M. Ayranov</a>, <a href="/search/nucl-ex?searchtype=author&query=Damone%2C+L">L. Damone</a>, <a href="/search/nucl-ex?searchtype=author&query=Kivel%2C+N">N. Kivel</a>, <a href="/search/nucl-ex?searchtype=author&query=Collaboration%2C+n">n_TOF Collaboration</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1606.09420v1-abstract-short" style="display: inline;"> The energy-dependent cross section of the 7Be(n,alpha)4He reaction, of interest for the so-called Cosmological Lithium Problem in Big Bang Nucleosynthesis, has been measured for the first time from 10 meV to 10 keV neutron energy. The challenges posed by the short half-life of 7Be and by the low reaction cross section have been overcome at n_TOF thanks to an unprecedented combination of the extrem… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1606.09420v1-abstract-full').style.display = 'inline'; document.getElementById('1606.09420v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1606.09420v1-abstract-full" style="display: none;"> The energy-dependent cross section of the 7Be(n,alpha)4He reaction, of interest for the so-called Cosmological Lithium Problem in Big Bang Nucleosynthesis, has been measured for the first time from 10 meV to 10 keV neutron energy. The challenges posed by the short half-life of 7Be and by the low reaction cross section have been overcome at n_TOF thanks to an unprecedented combination of the extremely high luminosity and good resolution of the neutron beam in the new experimental area (EAR2) of the n_TOF facility at CERN, the availability of a sufficient amount of chemically pure 7Be, and a specifically designed experimental setup. Coincidences between the two alpha-particles have been recorded in two Si-7Be-Si arrays placed directly in the neutron beam. The present results are consistent, at thermal neutron energy, with the only previous measurement performed in the 60's at a nuclear reactor. The energy dependence here reported clearly indicates the inadequacy of the cross section estimates currently used in BBN calculations. Although new measurements at higher neutron energy may still be needed, the n_TOF results hint to a minor role of this reaction in BBN, leaving the long-standing Cosmological Lithium problem unsolved. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1606.09420v1-abstract-full').style.display = 'none'; document.getElementById('1606.09420v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 30 June, 2016; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2016. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 117, 152701 (2016) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1604.05749">arXiv:1604.05749</a> <span> [<a href="https://arxiv.org/pdf/1604.05749">pdf</a>, <a href="https://arxiv.org/format/1604.05749">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1140/epja/i2016-16101-7">10.1140/epja/i2016-16101-7 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Integral measurement of the $^{12}$C(n,p)$^{12}$B reaction up to 10 GeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=%C5%BDugec%2C+P">P. 沤ugec</a>, <a href="/search/nucl-ex?searchtype=author&query=Colonna%2C+N">N. Colonna</a>, <a href="/search/nucl-ex?searchtype=author&query=Bosnar%2C+D">D. Bosnar</a>, <a href="/search/nucl-ex?searchtype=author&query=Ventura%2C+A">A. Ventura</a>, <a href="/search/nucl-ex?searchtype=author&query=Mengoni%2C+A">A. Mengoni</a>, <a href="/search/nucl-ex?searchtype=author&query=Altstadt%2C+S">S. Altstadt</a>, <a href="/search/nucl-ex?searchtype=author&query=Andrzejewski%2C+J">J. Andrzejewski</a>, <a href="/search/nucl-ex?searchtype=author&query=Audouin%2C+L">L. Audouin</a>, <a href="/search/nucl-ex?searchtype=author&query=Barbagallo%2C+M">M. Barbagallo</a>, <a href="/search/nucl-ex?searchtype=author&query=B%C3%A9cares%2C+V">V. B茅cares</a>, <a href="/search/nucl-ex?searchtype=author&query=Be%C4%8Dv%C3%A1%C5%99%2C+F">F. Be膷v谩艡</a>, <a href="/search/nucl-ex?searchtype=author&query=Belloni%2C+F">F. Belloni</a>, <a href="/search/nucl-ex?searchtype=author&query=Berthoumieux%2C+E">E. Berthoumieux</a>, <a href="/search/nucl-ex?searchtype=author&query=Billowes%2C+J">J. Billowes</a>, <a href="/search/nucl-ex?searchtype=author&query=Boccone%2C+V">V. Boccone</a>, <a href="/search/nucl-ex?searchtype=author&query=Brugger%2C+M">M. Brugger</a>, <a href="/search/nucl-ex?searchtype=author&query=Calviani%2C+M">M. Calviani</a>, <a href="/search/nucl-ex?searchtype=author&query=Calvi%C3%B1o%2C+F">F. Calvi帽o</a>, <a href="/search/nucl-ex?searchtype=author&query=Cano-Ott%2C+D">D. Cano-Ott</a>, <a href="/search/nucl-ex?searchtype=author&query=Carrapi%C3%A7o%2C+C">C. Carrapi莽o</a>, <a href="/search/nucl-ex?searchtype=author&query=Cerutti%2C+F">F. Cerutti</a>, <a href="/search/nucl-ex?searchtype=author&query=Chiaveri%2C+E">E. Chiaveri</a>, <a href="/search/nucl-ex?searchtype=author&query=Chin%2C+M">M. Chin</a>, <a href="/search/nucl-ex?searchtype=author&query=Cort%C3%A9s%2C+G">G. Cort茅s</a>, <a href="/search/nucl-ex?searchtype=author&query=Cort%C3%A9s-Giraldo%2C+M+A">M. A. Cort茅s-Giraldo</a> , et al. (80 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1604.05749v1-abstract-short" style="display: inline;"> The integral measurement of the $^{12}$C(n,p)$^{12}$B reaction was performed at the neutron time of flight facility n_TOF at CERN. The total number of $^{12}$B nuclei produced per neutron pulse of the n_TOF beam was determined using the activation technique in combination with a time of flight technique. The cross section is integrated over the n_TOF neutron energy spectrum from reaction threshold… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1604.05749v1-abstract-full').style.display = 'inline'; document.getElementById('1604.05749v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1604.05749v1-abstract-full" style="display: none;"> The integral measurement of the $^{12}$C(n,p)$^{12}$B reaction was performed at the neutron time of flight facility n_TOF at CERN. The total number of $^{12}$B nuclei produced per neutron pulse of the n_TOF beam was determined using the activation technique in combination with a time of flight technique. The cross section is integrated over the n_TOF neutron energy spectrum from reaction threshold at 13.6 MeV to 10 GeV. Having been measured up to 1 GeV on basis of the $^{235}$U(n,f) reaction, the neutron energy spectrum above 200 MeV has been reevaluated due to the recent extension of the cross section reference for this particular reaction, which is otherwise considered a standard up to 200 MeV. The results from the dedicated GEANT4 simulations have been used to evaluate the neutron flux from 1 GeV up to 10 GeV. The experimental results related to the $^{12}$C(n,p)$^{12}$B reaction are compared with the evaluated cross sections from major libraries and with the predictions of different GEANT4 models, which mostly underestimate the $^{12}$B production. On the contrary, a good reproduction of the integral cross section derived from measurements is obtained with TALYS-1.6 calculations, with optimized parameters. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1604.05749v1-abstract-full').style.display = 'none'; document.getElementById('1604.05749v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 19 April, 2016; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2016. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">14 pages, 11 figures, 3 tables</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Eur. Phys. J. A 52 (2016) 101 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1604.00181">arXiv:1604.00181</a> <span> [<a href="https://arxiv.org/pdf/1604.00181">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.nima.2016.05.089">10.1016/j.nima.2016.05.089 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Experimental setup and procedure for the measurement of the 7Be(n,伪)伪 reaction at n_TOF </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Cosentino%2C+L">L. Cosentino</a>, <a href="/search/nucl-ex?searchtype=author&query=Musumarra%2C+A">A. Musumarra</a>, <a href="/search/nucl-ex?searchtype=author&query=Barbagallo%2C+M">M. Barbagallo</a>, <a href="/search/nucl-ex?searchtype=author&query=Pappalardo%2C+A">A. Pappalardo</a>, <a href="/search/nucl-ex?searchtype=author&query=Colonna%2C+N">N. Colonna</a>, <a href="/search/nucl-ex?searchtype=author&query=Damone%2C+L">L. Damone</a>, <a href="/search/nucl-ex?searchtype=author&query=Piscopo%2C+M">M. Piscopo</a>, <a href="/search/nucl-ex?searchtype=author&query=Finocchiaro%2C+P">P. Finocchiaro</a>, <a href="/search/nucl-ex?searchtype=author&query=Maugeri%2C+E">E. Maugeri</a>, <a href="/search/nucl-ex?searchtype=author&query=Heinitz%2C+S">S. Heinitz</a>, <a href="/search/nucl-ex?searchtype=author&query=Schumann%2C+D">D. Schumann</a>, <a href="/search/nucl-ex?searchtype=author&query=Dressler%2C+R">R. Dressler</a>, <a href="/search/nucl-ex?searchtype=author&query=Kivel%2C+N">N. Kivel</a>, <a href="/search/nucl-ex?searchtype=author&query=Aberle%2C+O">O. Aberle</a>, <a href="/search/nucl-ex?searchtype=author&query=Andrzejewski%2C+J">J. Andrzejewski</a>, <a href="/search/nucl-ex?searchtype=author&query=Audouin%2C+L">L. Audouin</a>, <a href="/search/nucl-ex?searchtype=author&query=Ayranov%2C+M">M. Ayranov</a>, <a href="/search/nucl-ex?searchtype=author&query=Bacak%2C+M">M. Bacak</a>, <a href="/search/nucl-ex?searchtype=author&query=Barros%2C+S">S. Barros</a>, <a href="/search/nucl-ex?searchtype=author&query=Balibrea-Correa%2C+J">J. Balibrea-Correa</a>, <a href="/search/nucl-ex?searchtype=author&query=Beecares%2C+V">V. Beecares</a>, <a href="/search/nucl-ex?searchtype=author&query=Becvar%2C+F">F. Becvar</a>, <a href="/search/nucl-ex?searchtype=author&query=Beinrucker%2C+C">C. Beinrucker</a>, <a href="/search/nucl-ex?searchtype=author&query=Berthoumieux%2C+E">E. Berthoumieux</a>, <a href="/search/nucl-ex?searchtype=author&query=Billowes%2C+J">J. Billowes</a> , et al. (107 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1604.00181v1-abstract-short" style="display: inline;"> The newly built second experimental area EAR2 of the n_TOF spallation neutron source at CERN allows to perform (n, charged particles) experiments on short-lived highly radioactive targets. This paper describes a detection apparatus and the experimental procedure for the determination of the cross-section of the 7Be(n,伪) reaction, which represents one of the focal points toward the solution of the… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1604.00181v1-abstract-full').style.display = 'inline'; document.getElementById('1604.00181v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1604.00181v1-abstract-full" style="display: none;"> The newly built second experimental area EAR2 of the n_TOF spallation neutron source at CERN allows to perform (n, charged particles) experiments on short-lived highly radioactive targets. This paper describes a detection apparatus and the experimental procedure for the determination of the cross-section of the 7Be(n,伪) reaction, which represents one of the focal points toward the solution of the cosmological Lithium abundance problem, and whose only measurement, at thermal energy, dates back to 1963. The apparently unsurmountable experimental difficulties stemming from the huge 7Be 纬-activity, along with the lack of a suitable neutron beam facility, had so far prevented further measurements. The detection system is subject to considerable radiation damage, but is capable of disentangling the rare reaction signals from the very high background. This newly developed setup could likely be useful also to study other challenging reactions requiring the detectors to be installed directly in the neutron beam. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1604.00181v1-abstract-full').style.display = 'none'; document.getElementById('1604.00181v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 1 April, 2016; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2016. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">submitted to Nuclear Instruments and Methods in Physics Research A</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Nuclear Instruments and Methods A 830 (2016) 197 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1512.07070">arXiv:1512.07070</a> <span> [<a href="https://arxiv.org/pdf/1512.07070">pdf</a>, <a href="https://arxiv.org/format/1512.07070">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Theory">nucl-th</span> </div> </div> <p class="title is-5 mathjax"> Statistical model analysis of hadron yields in proton-nucleus and heavy-ion collisions at SIS 18 energies </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/nucl-ex?searchtype=author&query=Arnold%2C+O">O. Arnold</a>, <a href="/search/nucl-ex?searchtype=author&query=Balanda%2C+A">A. Balanda</a>, <a href="/search/nucl-ex?searchtype=author&query=Belver%2C+D">D. Belver</a>, <a href="/search/nucl-ex?searchtype=author&query=Belyaev%2C+A">A. Belyaev</a>, <a href="/search/nucl-ex?searchtype=author&query=Berger-Chen%2C+J+C">J. C. Berger-Chen</a>, <a href="/search/nucl-ex?searchtype=author&query=Blanco%2C+A">A. Blanco</a>, <a href="/search/nucl-ex?searchtype=author&query=B%C3%B6hmer%2C+M">M. B枚hmer</a>, <a href="/search/nucl-ex?searchtype=author&query=Boyard%2C+J+L">J. L. Boyard</a>, <a href="/search/nucl-ex?searchtype=author&query=Cabanelas%2C+P">P. Cabanelas</a>, <a href="/search/nucl-ex?searchtype=author&query=Castro%2C+E">E. Castro</a>, <a href="/search/nucl-ex?searchtype=author&query=Chernenko%2C+S">S. Chernenko</a>, <a href="/search/nucl-ex?searchtype=author&query=Destefanis%2C+M">M. Destefanis</a>, <a href="/search/nucl-ex?searchtype=author&query=Dohrmann%2C+F">F. Dohrmann</a>, <a href="/search/nucl-ex?searchtype=author&query=Dybczak%2C+A">A. Dybczak</a>, <a href="/search/nucl-ex?searchtype=author&query=Epple%2C+E">E. Epple</a>, <a href="/search/nucl-ex?searchtype=author&query=Fabbietti%2C+L">L. Fabbietti</a>, <a href="/search/nucl-ex?searchtype=author&query=Fateev%2C+O">O. Fateev</a>, <a href="/search/nucl-ex?searchtype=author&query=Finocchiaro%2C+P">P. Finocchiaro</a>, <a href="/search/nucl-ex?searchtype=author&query=Fonte%2C+P">P. Fonte</a>, <a href="/search/nucl-ex?searchtype=author&query=Friese%2C+J">J. Friese</a>, <a href="/search/nucl-ex?searchtype=author&query=Fr%C3%B6hlich%2C+I">I. Fr枚hlich</a>, <a href="/search/nucl-ex?searchtype=author&query=Galatyuk%2C+T">T. Galatyuk</a>, <a href="/search/nucl-ex?searchtype=author&query=Garzon%2C+J+A">J. A. Garzon</a>, <a href="/search/nucl-ex?searchtype=author&query=Gernh%C3%A4user%2C+R">R. Gernh盲user</a> , et al. (85 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1512.07070v1-abstract-short" style="display: inline;"> The HADES data from p+Nb collisions at center of mass energy of $\sqrt{s_{NN}}$= 3.2 GeV are analyzed by employing a statistical model. Accounting for the identified hadrons $蟺^0$, $畏$, $螞$, $K^{0}_{s}$, $蠅$ allows a surprisingly good description of their abundances with parameters $T_{chem}=(99\pm11)$ MeV and $渭_{b}=(619\pm34)$ MeV, which fits well in the chemical freeze-out systematics found in… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1512.07070v1-abstract-full').style.display = 'inline'; document.getElementById('1512.07070v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1512.07070v1-abstract-full" style="display: none;"> The HADES data from p+Nb collisions at center of mass energy of $\sqrt{s_{NN}}$= 3.2 GeV are analyzed by employing a statistical model. Accounting for the identified hadrons $蟺^0$, $畏$, $螞$, $K^{0}_{s}$, $蠅$ allows a surprisingly good description of their abundances with parameters $T_{chem}=(99\pm11)$ MeV and $渭_{b}=(619\pm34)$ MeV, which fits well in the chemical freeze-out systematics found in heavy-ion collisions. In supplement we reanalyze our previous HADES data from Ar+KCl collisions at $\sqrt{s_{NN}}$= 2.6 GeV with an updated version of the statistical model. We address equilibration in heavy-ion collisions by testing two aspects: the description of yields and the regularity of freeze-out parameters from a statistical model fit. Special emphasis is put on feed-down contributions from higher-lying resonance states which have been proposed to explain the experimentally observed $螢^-$ excess present in both data samples. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1512.07070v1-abstract-full').style.display = 'none'; document.getElementById('1512.07070v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 22 December, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2015. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1505.06184">arXiv:1505.06184</a> <span> [<a href="https://arxiv.org/pdf/1505.06184">pdf</a>, <a href="https://arxiv.org/format/1505.06184">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevC.92.024903">10.1103/PhysRevC.92.024903 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> K*(892)+ production in proton-proton collisions at E_beam = 3.5 GeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=HADES+Collaboration"> HADES Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/nucl-ex?searchtype=author&query=Arnold%2C+O">O. Arnold</a>, <a href="/search/nucl-ex?searchtype=author&query=Belver%2C+D">D. Belver</a>, <a href="/search/nucl-ex?searchtype=author&query=Belyaev%2C+A">A. Belyaev</a>, <a href="/search/nucl-ex?searchtype=author&query=Berger-Chen%2C+J+C">J. C. Berger-Chen</a>, <a href="/search/nucl-ex?searchtype=author&query=Blanco%2C+A">A. Blanco</a>, <a href="/search/nucl-ex?searchtype=author&query=B%C3%B6hmer%2C+M">M. B枚hmer</a>, <a href="/search/nucl-ex?searchtype=author&query=Boyard%2C+J+L">J. L. Boyard</a>, <a href="/search/nucl-ex?searchtype=author&query=Cabanelas%2C+P">P. Cabanelas</a>, <a href="/search/nucl-ex?searchtype=author&query=Chernenko%2C+S">S. Chernenko</a>, <a href="/search/nucl-ex?searchtype=author&query=Dybczak%2C+A">A. Dybczak</a>, <a href="/search/nucl-ex?searchtype=author&query=Epple%2C+E">E. Epple</a>, <a href="/search/nucl-ex?searchtype=author&query=Fabbietti%2C+L">L. Fabbietti</a>, <a href="/search/nucl-ex?searchtype=author&query=Fateev%2C+O">O. Fateev</a>, <a href="/search/nucl-ex?searchtype=author&query=Finocchiaro%2C+P">P. Finocchiaro</a>, <a href="/search/nucl-ex?searchtype=author&query=Fonte%2C+P">P. Fonte</a>, <a href="/search/nucl-ex?searchtype=author&query=Friese%2C+J">J. Friese</a>, <a href="/search/nucl-ex?searchtype=author&query=Fr%C3%B6hlich%2C+I">I. Fr枚hlich</a>, <a href="/search/nucl-ex?searchtype=author&query=Galatyuk%2C+T">T. Galatyuk</a>, <a href="/search/nucl-ex?searchtype=author&query=Garz%C3%B3n%2C+J+A">J. A. Garz贸n</a>, <a href="/search/nucl-ex?searchtype=author&query=Gernh%C3%A4user%2C+R">R. Gernh盲user</a>, <a href="/search/nucl-ex?searchtype=author&query=G%C3%B6bel%2C+K">K. G枚bel</a>, <a href="/search/nucl-ex?searchtype=author&query=Golubeva%2C+M">M. Golubeva</a>, <a href="/search/nucl-ex?searchtype=author&query=Gonz%C3%A1lez-D%C3%ADaz%2C+D">D. Gonz谩lez-D铆az</a> , et al. (74 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1505.06184v1-abstract-short" style="display: inline;"> We present results on the K*(892)+ production in proton-proton collisions at a beam energy of E = 3.5 GeV, which is hitherto the lowest energy at which this mesonic resonance has been observed in nucleon-nucleon reactions. The data are interpreted within a two-channel model that includes the 3-body production of K*(892)+ associated with the Lambda- or Sigma-hyperon. The relative contributions of b… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1505.06184v1-abstract-full').style.display = 'inline'; document.getElementById('1505.06184v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1505.06184v1-abstract-full" style="display: none;"> We present results on the K*(892)+ production in proton-proton collisions at a beam energy of E = 3.5 GeV, which is hitherto the lowest energy at which this mesonic resonance has been observed in nucleon-nucleon reactions. The data are interpreted within a two-channel model that includes the 3-body production of K*(892)+ associated with the Lambda- or Sigma-hyperon. The relative contributions of both channels are estimated. Besides the total cross section sigma(p+p -> K*(892)+ + X) = 9.5 +- 0.9 +1.1 -0.9 +- 0.7 mub, that adds a new data point to the excitation function of the K*(892)+ production in the region of low excess energy, transverse momenta and angular spectra are extracted and compared with the predictions of the two-channel model. The spin characteristics of K*(892)+ are discussed as well in terms of the spin-alignment. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1505.06184v1-abstract-full').style.display = 'none'; document.getElementById('1505.06184v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 22 May, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2015. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">7 pages, 9 figures, 1 table</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. C 92, 024903 (2015) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1503.04013">arXiv:1503.04013</a> <span> [<a href="https://arxiv.org/pdf/1503.04013">pdf</a>, <a href="https://arxiv.org/ps/1503.04013">ps</a>, <a href="https://arxiv.org/format/1503.04013">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2015.09.016">10.1016/j.physletb.2015.09.016 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Study of the quasi-free $np \to np 蟺^+蟺^-$ reaction with a deuterium beam at 1.25 GeV/nucleon </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/nucl-ex?searchtype=author&query=Balanda%2C+A">A. Balanda</a>, <a href="/search/nucl-ex?searchtype=author&query=Belver%2C+D">D. Belver</a>, <a href="/search/nucl-ex?searchtype=author&query=Belyaev%2C+A+V">A. V. Belyaev</a>, <a href="/search/nucl-ex?searchtype=author&query=Blanco%2C+A">A. Blanco</a>, <a href="/search/nucl-ex?searchtype=author&query=B%C3%B6hmer%2C+M">M. B枚hmer</a>, <a href="/search/nucl-ex?searchtype=author&query=Boyard%2C+J+L">J. L. Boyard</a>, <a href="/search/nucl-ex?searchtype=author&query=Braun-Munzinger%2C+P">P. Braun-Munzinger</a>, <a href="/search/nucl-ex?searchtype=author&query=Cabanelas%2C+P">P. Cabanelas</a>, <a href="/search/nucl-ex?searchtype=author&query=Castro%2C+E">E. Castro</a>, <a href="/search/nucl-ex?searchtype=author&query=Chernenko%2C+S">S. Chernenko</a>, <a href="/search/nucl-ex?searchtype=author&query=Christ%2C+T">T. Christ</a>, <a href="/search/nucl-ex?searchtype=author&query=Destefanis%2C+M">M. Destefanis</a>, <a href="/search/nucl-ex?searchtype=author&query=D%C3%ADaz%2C+J">J. D铆az</a>, <a href="/search/nucl-ex?searchtype=author&query=Dohrmann%2C+F">F. Dohrmann</a>, <a href="/search/nucl-ex?searchtype=author&query=Dybczak%2C+A">A. Dybczak</a>, <a href="/search/nucl-ex?searchtype=author&query=Fabbietti%2C+L">L. Fabbietti</a>, <a href="/search/nucl-ex?searchtype=author&query=Fateev%2C+O+V">O. V. Fateev</a>, <a href="/search/nucl-ex?searchtype=author&query=Finocchiaro%2C+P">P. Finocchiaro</a>, <a href="/search/nucl-ex?searchtype=author&query=Fonte%2C+P">P. Fonte</a>, <a href="/search/nucl-ex?searchtype=author&query=Friese%2C+J">J. Friese</a>, <a href="/search/nucl-ex?searchtype=author&query=Fr%C3%B6hlich%2C+I">I. Fr枚hlich</a>, <a href="/search/nucl-ex?searchtype=author&query=Galatyuk%2C+T">T. Galatyuk</a>, <a href="/search/nucl-ex?searchtype=author&query=Garz%C3%B3n%2C+J+A">J. A. Garz贸n</a>, <a href="/search/nucl-ex?searchtype=author&query=Gernh%C3%A4user%2C+R">R. Gernh盲user</a> , et al. (80 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1503.04013v2-abstract-short" style="display: inline;"> The tagged quasi-free $np \to np蟺^+蟺^-$ reaction has been studied experimentally with the High Acceptance Di-Electron Spectrometer (HADES) at GSI at a deuteron incident beam energy of 1.25 GeV/nucleon ($\sqrt s \sim$ 2.42 GeV/c for the quasi-free collision). For the first time, differential distributions for $蟺^{+}蟺^{-}$ production in $np$ collisions have been collected in the region corresponding… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1503.04013v2-abstract-full').style.display = 'inline'; document.getElementById('1503.04013v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1503.04013v2-abstract-full" style="display: none;"> The tagged quasi-free $np \to np蟺^+蟺^-$ reaction has been studied experimentally with the High Acceptance Di-Electron Spectrometer (HADES) at GSI at a deuteron incident beam energy of 1.25 GeV/nucleon ($\sqrt s \sim$ 2.42 GeV/c for the quasi-free collision). For the first time, differential distributions for $蟺^{+}蟺^{-}$ production in $np$ collisions have been collected in the region corresponding to the large transverse momenta of the secondary particles. The invariant mass and angular distributions for the $np\rightarrow np蟺^{+}蟺^{-}$ reaction are compared with different models. This comparison confirms the dominance of the $t$-channel with $螖螖$ contribution. It also validates the changes previously introduced in the Valencia model to describe two-pion production data in other isospin channels, although some deviations are observed, especially for the $蟺^{+}蟺^{-}$ invariant mass spectrum. The extracted total cross section is also in much better agreement with this model. Our new measurement puts useful constraints for the existence of the conjectured dibaryon resonance at mass M$\sim$ 2.38 GeV and with width $螕\sim$ 70 MeV. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1503.04013v2-abstract-full').style.display = 'none'; document.getElementById('1503.04013v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 24 September, 2015; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 13 March, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2015. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1501.03894">arXiv:1501.03894</a> <span> [<a href="https://arxiv.org/pdf/1501.03894">pdf</a>, <a href="https://arxiv.org/format/1501.03894">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevLett.114.212301">10.1103/PhysRevLett.114.212301 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Subthreshold Xi- Production in Collisions of p(3.5 GeV)+Nb </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/nucl-ex?searchtype=author&query=Arnold%2C+O">O. Arnold</a>, <a href="/search/nucl-ex?searchtype=author&query=Balanda%2C+A">A. Balanda</a>, <a href="/search/nucl-ex?searchtype=author&query=Belver%2C+D">D. Belver</a>, <a href="/search/nucl-ex?searchtype=author&query=Belyaev%2C+A+V">A. V. Belyaev</a>, <a href="/search/nucl-ex?searchtype=author&query=Berger-Chen%2C+J+C">J. C. Berger-Chen</a>, <a href="/search/nucl-ex?searchtype=author&query=Blanco%2C+A">A. Blanco</a>, <a href="/search/nucl-ex?searchtype=author&query=B%C3%B6hmer%2C+M">M. B枚hmer</a>, <a href="/search/nucl-ex?searchtype=author&query=Boyard%2C+J+L">J. L. Boyard</a>, <a href="/search/nucl-ex?searchtype=author&query=Cabanelas%2C+P">P. Cabanelas</a>, <a href="/search/nucl-ex?searchtype=author&query=Chernenko%2C+S">S. Chernenko</a>, <a href="/search/nucl-ex?searchtype=author&query=Dybczak%2C+A">A. Dybczak</a>, <a href="/search/nucl-ex?searchtype=author&query=Epple%2C+E">E. Epple</a>, <a href="/search/nucl-ex?searchtype=author&query=Fabbietti%2C+L">L. Fabbietti</a>, <a href="/search/nucl-ex?searchtype=author&query=Fateev%2C+O+V">O. V. Fateev</a>, <a href="/search/nucl-ex?searchtype=author&query=Finocchiaro%2C+P">P. Finocchiaro</a>, <a href="/search/nucl-ex?searchtype=author&query=Fonte%2C+P">P. Fonte</a>, <a href="/search/nucl-ex?searchtype=author&query=Friese%2C+J">J. Friese</a>, <a href="/search/nucl-ex?searchtype=author&query=Fr%C3%B6hlich%2C+I">I. Fr枚hlich</a>, <a href="/search/nucl-ex?searchtype=author&query=Galatyuk%2C+T">T. Galatyuk</a>, <a href="/search/nucl-ex?searchtype=author&query=Garzon%2C+J+A">J. A. Garzon</a>, <a href="/search/nucl-ex?searchtype=author&query=Gernh%C3%A4user%2C+R">R. Gernh盲user</a>, <a href="/search/nucl-ex?searchtype=author&query=G%C3%B6bel%2C+K">K. G枚bel</a>, <a href="/search/nucl-ex?searchtype=author&query=Golubeva%2C+M">M. Golubeva</a>, <a href="/search/nucl-ex?searchtype=author&query=Gonzalez-Diaz%2C+D">D. Gonzalez-Diaz</a> , et al. (73 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1501.03894v1-abstract-short" style="display: inline;"> Results on the production of the double-strange cascade hyperon $\mathrm{螢^-}$ are reported for collisions of p\,(3.5~GeV)\,+\,Nb, studied with the High Acceptance Di-Electron Spectrometer (HADES) at SIS18 at GSI Helmholtzzentrum for Heavy-Ion Research, Darmstadt. For the first time, subthreshold $\mathrm{螢^-}$ production is observed in proton-nucleus interactions. Assuming a $\mathrm{螢^-}$ phase-… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1501.03894v1-abstract-full').style.display = 'inline'; document.getElementById('1501.03894v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1501.03894v1-abstract-full" style="display: none;"> Results on the production of the double-strange cascade hyperon $\mathrm{螢^-}$ are reported for collisions of p\,(3.5~GeV)\,+\,Nb, studied with the High Acceptance Di-Electron Spectrometer (HADES) at SIS18 at GSI Helmholtzzentrum for Heavy-Ion Research, Darmstadt. For the first time, subthreshold $\mathrm{螢^-}$ production is observed in proton-nucleus interactions. Assuming a $\mathrm{螢^-}$ phase-space distribution similar to that of $\mathrm螞$ hyperons, the production probability amounts to $P_{\mathrm{螢^-}}=(2.0\,\pm0.4\,\mathrm{(stat)}\,\pm 0.3\,\mathrm{(norm)}\,\pm 0.6\,\mathrm{(syst)})\times10^{-4}$ resulting in a $\mathrm{螢^-/(螞+危^0)}$ ratio of $P_{\mathrm{螢^-}}/\ P_{\mathrm{螞+危^0}}=(1.2\pm 0.3\,\mathrm{(stat)}\pm0.4\,\mathrm{(syst)})\times10^{-2}$. Available model predictions are significantly lower than the estimated $\mathrm{螢^-}$ yield. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1501.03894v1-abstract-full').style.display = 'none'; document.getElementById('1501.03894v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 16 January, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2015. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">6 pages, 3 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 114, 212301 (2015) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1410.8188">arXiv:1410.8188</a> <span> [<a href="https://arxiv.org/pdf/1410.8188">pdf</a>, <a href="https://arxiv.org/ps/1410.8188">ps</a>, <a href="https://arxiv.org/format/1410.8188">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2015.01.032">10.1016/j.physletb.2015.01.032 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Partial Wave Analysis of the Reaction $p(3.5 GeV)+p \to pK^+螞$ to Search for the "$ppK^-$" Bound State </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/nucl-ex?searchtype=author&query=Arnold%2C+O">O. Arnold</a>, <a href="/search/nucl-ex?searchtype=author&query=Belver%2C+D">D. Belver</a>, <a href="/search/nucl-ex?searchtype=author&query=Belyaev%2C+A">A. Belyaev</a>, <a href="/search/nucl-ex?searchtype=author&query=Berger-Chen%2C+J+C">J. C. Berger-Chen</a>, <a href="/search/nucl-ex?searchtype=author&query=Blanco%2C+A">A. Blanco</a>, <a href="/search/nucl-ex?searchtype=author&query=B%C3%B6hmer%2C+M">M. B枚hmer</a>, <a href="/search/nucl-ex?searchtype=author&query=Boyard%2C+J+L">J. L. Boyard</a>, <a href="/search/nucl-ex?searchtype=author&query=Cabanelas%2C+P">P. Cabanelas</a>, <a href="/search/nucl-ex?searchtype=author&query=Chernenko%2C+S">S. Chernenko</a>, <a href="/search/nucl-ex?searchtype=author&query=Dybczak%2C+A">A. Dybczak</a>, <a href="/search/nucl-ex?searchtype=author&query=Epple%2C+E">E. Epple</a>, <a href="/search/nucl-ex?searchtype=author&query=Fabbietti%2C+L">L. Fabbietti</a>, <a href="/search/nucl-ex?searchtype=author&query=Fateev%2C+O">O. Fateev</a>, <a href="/search/nucl-ex?searchtype=author&query=Finocchiaro%2C+P">P. Finocchiaro</a>, <a href="/search/nucl-ex?searchtype=author&query=Fonte%2C+P">P. Fonte</a>, <a href="/search/nucl-ex?searchtype=author&query=Friese%2C+J">J. Friese</a>, <a href="/search/nucl-ex?searchtype=author&query=Fr%C3%B6hlich%2C+I">I. Fr枚hlich</a>, <a href="/search/nucl-ex?searchtype=author&query=Galatyuk%2C+T">T. Galatyuk</a>, <a href="/search/nucl-ex?searchtype=author&query=Garz%C3%B3n%2C+J+A">J. A. Garz贸n</a>, <a href="/search/nucl-ex?searchtype=author&query=Gernh%C3%A4user%2C+R">R. Gernh盲user</a>, <a href="/search/nucl-ex?searchtype=author&query=G%C3%B6bel%2C+K">K. G枚bel</a>, <a href="/search/nucl-ex?searchtype=author&query=Golubeva%2C+M">M. Golubeva</a>, <a href="/search/nucl-ex?searchtype=author&query=Gonz%C3%A1lez-D%C3%ADaz%2C+D">D. Gonz谩lez-D铆az</a>, <a href="/search/nucl-ex?searchtype=author&query=Guber%2C+F">F. Guber</a> , et al. (71 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1410.8188v1-abstract-short" style="display: inline;"> Employing the Bonn-Gatchina partial wave analysis framework (PWA), we have analyzed HADES data of the reaction $p(3.5GeV)+p\to pK^{+}螞$. This reaction might contain information about the kaonic cluster "$ppK^-$" via its decay into $p螞$. Due to interference effects in our coherent description of the data, a hypothetical $\overline{K}NN$ (or, specifically "$ppK^-$") cluster signal must not necessari… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1410.8188v1-abstract-full').style.display = 'inline'; document.getElementById('1410.8188v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1410.8188v1-abstract-full" style="display: none;"> Employing the Bonn-Gatchina partial wave analysis framework (PWA), we have analyzed HADES data of the reaction $p(3.5GeV)+p\to pK^{+}螞$. This reaction might contain information about the kaonic cluster "$ppK^-$" via its decay into $p螞$. Due to interference effects in our coherent description of the data, a hypothetical $\overline{K}NN$ (or, specifically "$ppK^-$") cluster signal must not necessarily show up as a pronounced feature (e.g. a peak) in an invariant mass spectra like $p螞$. Our PWA analysis includes a variety of resonant and non-resonant intermediate states and delivers a good description of our data (various angular distributions and two-hadron invariant mass spectra) without a contribution of a $\overline{K}NN$ cluster. At a confidence level of CL$_{s}$=95\% such a cluster can not contribute more than 2-12\% to the total cross section with a $pK^{+}螞$ final state, which translates into a production cross-section between 0.7 $渭b$ and 4.2 $渭b$, respectively. The range of the upper limit depends on the assumed cluster mass, width and production process. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1410.8188v1-abstract-full').style.display = 'none'; document.getElementById('1410.8188v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 29 October, 2014; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2014. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">7 Pages, 5 Figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1410.7737">arXiv:1410.7737</a> <span> [<a href="https://arxiv.org/pdf/1410.7737">pdf</a>, <a href="https://arxiv.org/format/1410.7737">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevC.91.024602">10.1103/PhysRevC.91.024602 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> High accuracy determination of the $^{238}$U/$^{235}$U fission cross section ratio up to $\sim$1 GeV at n_TOF (CERN) </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Paradela%2C+C">C. Paradela</a>, <a href="/search/nucl-ex?searchtype=author&query=Calviani%2C+M">M. Calviani</a>, <a href="/search/nucl-ex?searchtype=author&query=Tarr%C3%ADo%2C+D">D. Tarr铆o</a>, <a href="/search/nucl-ex?searchtype=author&query=Leal-Cidoncha%2C+E">E. Leal-Cidoncha</a>, <a href="/search/nucl-ex?searchtype=author&query=Leong%2C+L+S">L. S. Leong</a>, <a href="/search/nucl-ex?searchtype=author&query=Tassan-Got%2C+L">L. Tassan-Got</a>, <a href="/search/nucl-ex?searchtype=author&query=Naour%2C+C+L">C. Le Naour</a>, <a href="/search/nucl-ex?searchtype=author&query=Duran%2C+I">I. Duran</a>, <a href="/search/nucl-ex?searchtype=author&query=Colonna%2C+N">N. Colonna</a>, <a href="/search/nucl-ex?searchtype=author&query=Audouin%2C+L">L. Audouin</a>, <a href="/search/nucl-ex?searchtype=author&query=Mastromarco%2C+M">M. Mastromarco</a>, <a href="/search/nucl-ex?searchtype=author&query=Meo%2C+S+L">S. Lo Meo</a>, <a href="/search/nucl-ex?searchtype=author&query=Ventura%2C+A">A. Ventura</a>, <a href="/search/nucl-ex?searchtype=author&query=Altstadt%2C+S">S. Altstadt</a>, <a href="/search/nucl-ex?searchtype=author&query=Andrzejewski%2C+J">J. Andrzejewski</a>, <a href="/search/nucl-ex?searchtype=author&query=Barbagallo%2C+M">M. Barbagallo</a>, <a href="/search/nucl-ex?searchtype=author&query=B%C3%A9cares%2C+V">V. B茅cares</a>, <a href="/search/nucl-ex?searchtype=author&query=Be%C4%8Dv%C3%A1%C5%99%2C+F">F. Be膷v谩艡</a>, <a href="/search/nucl-ex?searchtype=author&query=Belloni%2C+F">F. Belloni</a>, <a href="/search/nucl-ex?searchtype=author&query=Berthoumieux%2C+E">E. Berthoumieux</a>, <a href="/search/nucl-ex?searchtype=author&query=Billowes%2C+J">J. Billowes</a>, <a href="/search/nucl-ex?searchtype=author&query=Boccone%2C+V">V. Boccone</a>, <a href="/search/nucl-ex?searchtype=author&query=Bosnar%2C+D">D. Bosnar</a>, <a href="/search/nucl-ex?searchtype=author&query=Brugger%2C+M">M. Brugger</a>, <a href="/search/nucl-ex?searchtype=author&query=Calvi%C3%B1o%2C+F">F. Calvi帽o</a> , et al. (82 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1410.7737v2-abstract-short" style="display: inline;"> The $^{238}$U to $^{235}$U fission cross section ratio has been determined at n_TOF up to $\sim$1 GeV, with two different detection systems, in different geometrical configurations. A total of four datasets have been collected and compared. They are all consistent to each other within the relative systematic uncertainty of 3-4%. The data collected at n_TOF have been suitably combined to yield a un… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1410.7737v2-abstract-full').style.display = 'inline'; document.getElementById('1410.7737v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1410.7737v2-abstract-full" style="display: none;"> The $^{238}$U to $^{235}$U fission cross section ratio has been determined at n_TOF up to $\sim$1 GeV, with two different detection systems, in different geometrical configurations. A total of four datasets have been collected and compared. They are all consistent to each other within the relative systematic uncertainty of 3-4%. The data collected at n_TOF have been suitably combined to yield a unique fission cross section ratio as a function of the neutron energy. The result confirms current evaluations up to 200 MeV. A good agreement is also observed with theoretical calculations based on the INCL++/Gemini++ combination up to the highest measured energy. The n_TOF results may help solving a long-standing discrepancy between the two most important experimental dataset available so far above 20 MeV, while extending the neutron energy range for the first time up to $\sim$1 GeV. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1410.7737v2-abstract-full').style.display = 'none'; document.getElementById('1410.7737v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 29 October, 2014; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 28 October, 2014; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2014. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1408.6652">arXiv:1408.6652</a> <span> [<a href="https://arxiv.org/pdf/1408.6652">pdf</a>, <a href="https://arxiv.org/format/1408.6652">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevC.90.021601">10.1103/PhysRevC.90.021601 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of the $^{12}$C($n,p$)$^{12}$B cross section at n_TOF (CERN) by in-beam activation analysis </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=%C5%BDugec%2C+P">P. 沤ugec</a>, <a href="/search/nucl-ex?searchtype=author&query=Colonna%2C+N">N. Colonna</a>, <a href="/search/nucl-ex?searchtype=author&query=Bosnar%2C+D">D. Bosnar</a>, <a href="/search/nucl-ex?searchtype=author&query=Mengoni%2C+A">A. Mengoni</a>, <a href="/search/nucl-ex?searchtype=author&query=Altstadt%2C+S">S. Altstadt</a>, <a href="/search/nucl-ex?searchtype=author&query=Andrzejewski%2C+J">J. Andrzejewski</a>, <a href="/search/nucl-ex?searchtype=author&query=Audouin%2C+L">L. Audouin</a>, <a href="/search/nucl-ex?searchtype=author&query=Barbagallo%2C+M">M. Barbagallo</a>, <a href="/search/nucl-ex?searchtype=author&query=B%C3%A9cares%2C+V">V. B茅cares</a>, <a href="/search/nucl-ex?searchtype=author&query=Be%C4%8Dv%C3%A1%C5%99%2C+F">F. Be膷v谩艡</a>, <a href="/search/nucl-ex?searchtype=author&query=Belloni%2C+F">F. Belloni</a>, <a href="/search/nucl-ex?searchtype=author&query=Berthoumieux%2C+E">E. Berthoumieux</a>, <a href="/search/nucl-ex?searchtype=author&query=Billowes%2C+J">J. Billowes</a>, <a href="/search/nucl-ex?searchtype=author&query=Boccone%2C+V">V. Boccone</a>, <a href="/search/nucl-ex?searchtype=author&query=Brugger%2C+M">M. Brugger</a>, <a href="/search/nucl-ex?searchtype=author&query=Calviani%2C+M">M. Calviani</a>, <a href="/search/nucl-ex?searchtype=author&query=Cano-Ott%2C+F+C+D">F. Calvi帽o D. Cano-Ott</a>, <a href="/search/nucl-ex?searchtype=author&query=Carrapi%C3%A7o%2C+C">C. Carrapi莽o</a>, <a href="/search/nucl-ex?searchtype=author&query=Cerutti%2C+F">F. Cerutti</a>, <a href="/search/nucl-ex?searchtype=author&query=Chiaveri%2C+E">E. Chiaveri</a>, <a href="/search/nucl-ex?searchtype=author&query=Chin%2C+M">M. Chin</a>, <a href="/search/nucl-ex?searchtype=author&query=Cort%C3%A9s%2C+G">G. Cort茅s</a>, <a href="/search/nucl-ex?searchtype=author&query=Cort%C3%A9s-Giraldo%2C+M+A">M. A. Cort茅s-Giraldo</a>, <a href="/search/nucl-ex?searchtype=author&query=Cosentino%2C+L">L. Cosentino</a>, <a href="/search/nucl-ex?searchtype=author&query=Diakaki%2C+M">M. Diakaki</a> , et al. (79 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1408.6652v1-abstract-short" style="display: inline;"> The integral cross section of the $^{12}$C($n,p$)$^{12}$B reaction has been determined for the first time in the neutron energy range from threshold to several GeV at the n_TOF facility at CERN. The measurement relies on the activation technique, with the $尾$-decay of $^{12}$B measured over a period of four half-lives within the same neutron bunch in which the reaction occurs. The results indicate… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1408.6652v1-abstract-full').style.display = 'inline'; document.getElementById('1408.6652v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1408.6652v1-abstract-full" style="display: none;"> The integral cross section of the $^{12}$C($n,p$)$^{12}$B reaction has been determined for the first time in the neutron energy range from threshold to several GeV at the n_TOF facility at CERN. The measurement relies on the activation technique, with the $尾$-decay of $^{12}$B measured over a period of four half-lives within the same neutron bunch in which the reaction occurs. The results indicate that model predictions, used in a variety of applications, are mostly inadequate. The value of the integral cross section reported here can be used as a benchmark for verifying or tuning model calculations. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1408.6652v1-abstract-full').style.display = 'none'; document.getElementById('1408.6652v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 28 August, 2014; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2014. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">6 pages, 4 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. C 90, 021601(R) (2014) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1404.7011">arXiv:1404.7011</a> <span> [<a href="https://arxiv.org/pdf/1404.7011">pdf</a>, <a href="https://arxiv.org/ps/1404.7011">ps</a>, <a href="https://arxiv.org/format/1404.7011">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevC.90.054906">10.1103/PhysRevC.90.054906 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Medium effects in proton-induced $K^{0}$ production at 3.5 GeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/nucl-ex?searchtype=author&query=Arnold%2C+O">O. Arnold</a>, <a href="/search/nucl-ex?searchtype=author&query=Belver%2C+D">D. Belver</a>, <a href="/search/nucl-ex?searchtype=author&query=Belyaev%2C+A">A. Belyaev</a>, <a href="/search/nucl-ex?searchtype=author&query=Berger-Chen%2C+J+C">J. C. Berger-Chen</a>, <a href="/search/nucl-ex?searchtype=author&query=Blanco%2C+A">A. Blanco</a>, <a href="/search/nucl-ex?searchtype=author&query=B%C3%B6hmer%2C+M">M. B枚hmer</a>, <a href="/search/nucl-ex?searchtype=author&query=Boyard%2C+J+L">J. L. Boyard</a>, <a href="/search/nucl-ex?searchtype=author&query=Cabanelas%2C+P">P. Cabanelas</a>, <a href="/search/nucl-ex?searchtype=author&query=Chernenko%2C+S">S. Chernenko</a>, <a href="/search/nucl-ex?searchtype=author&query=Dybczak%2C+A">A. Dybczak</a>, <a href="/search/nucl-ex?searchtype=author&query=Epple%2C+E">E. Epple</a>, <a href="/search/nucl-ex?searchtype=author&query=Fabbietti%2C+L">L. Fabbietti</a>, <a href="/search/nucl-ex?searchtype=author&query=Fateev%2C+O">O. Fateev</a>, <a href="/search/nucl-ex?searchtype=author&query=Finocchiaro%2C+P">P. Finocchiaro</a>, <a href="/search/nucl-ex?searchtype=author&query=Fonte%2C+P">P. Fonte</a>, <a href="/search/nucl-ex?searchtype=author&query=Friese%2C+J">J. Friese</a>, <a href="/search/nucl-ex?searchtype=author&query=Fr%C3%B6hlich%2C+I">I. Fr枚hlich</a>, <a href="/search/nucl-ex?searchtype=author&query=Galatyuk%2C+T">T. Galatyuk</a>, <a href="/search/nucl-ex?searchtype=author&query=Garz%C3%B3n%2C+J+A">J. A. Garz贸n</a>, <a href="/search/nucl-ex?searchtype=author&query=Gernh%C3%A4user%2C+R">R. Gernh盲user</a>, <a href="/search/nucl-ex?searchtype=author&query=G%C3%B6bel%2C+K">K. G枚bel</a>, <a href="/search/nucl-ex?searchtype=author&query=Golubeva%2C+M">M. Golubeva</a>, <a href="/search/nucl-ex?searchtype=author&query=Gonz%C3%A1lez-D%C3%ADaz%2C+D">D. Gonz谩lez-D铆az</a>, <a href="/search/nucl-ex?searchtype=author&query=Guber%2C+F">F. Guber</a> , et al. (72 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1404.7011v2-abstract-short" style="display: inline;"> We present the analysis of the inclusive $K^{0}$ production in p+p and p+Nb collisions measured with the HADES detector at a beam kinetic energy of 3.5 GeV. Data are compared to the GiBUU transport model. The data suggest the presence of a repulsive momentum-dependent kaon potential as predicted by the Chiral Perturbation Theory (ChPT). For the kaon at rest and at normal nuclear density, the ChPT… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1404.7011v2-abstract-full').style.display = 'inline'; document.getElementById('1404.7011v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1404.7011v2-abstract-full" style="display: none;"> We present the analysis of the inclusive $K^{0}$ production in p+p and p+Nb collisions measured with the HADES detector at a beam kinetic energy of 3.5 GeV. Data are compared to the GiBUU transport model. The data suggest the presence of a repulsive momentum-dependent kaon potential as predicted by the Chiral Perturbation Theory (ChPT). For the kaon at rest and at normal nuclear density, the ChPT potential amounts to $\approx 35$ MeV. A detailed tuning of the kaon production cross sections implemented in the model has been carried out to reproduce the experimental data measured in p+p collisions. The uncertainties in the parameters of the model were examined with respect to the sensitivity of the experimental results from p+Nb collisions to the in-medium kaon potential. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1404.7011v2-abstract-full').style.display = 'none'; document.getElementById('1404.7011v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 29 April, 2014; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 28 April, 2014; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2014. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">13 pages, 14 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. C 90, 054906 (2014) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1404.3014">arXiv:1404.3014</a> <span> [<a href="https://arxiv.org/pdf/1404.3014">pdf</a>, <a href="https://arxiv.org/format/1404.3014">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1140/epja/i2014-14081-2">10.1140/epja/i2014-14081-2 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Lambda hyperon production and polarization in collisions of p(3.5 GeV) + Nb </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/nucl-ex?searchtype=author&query=Arnold%2C+O">O. Arnold</a>, <a href="/search/nucl-ex?searchtype=author&query=Balanda%2C+A">A. Balanda</a>, <a href="/search/nucl-ex?searchtype=author&query=Belver%2C+D">D. Belver</a>, <a href="/search/nucl-ex?searchtype=author&query=Belyaev%2C+A+V">A. V. Belyaev</a>, <a href="/search/nucl-ex?searchtype=author&query=Berger-Chen%2C+J+C">J. C. Berger-Chen</a>, <a href="/search/nucl-ex?searchtype=author&query=Blanco%2C+A">A. Blanco</a>, <a href="/search/nucl-ex?searchtype=author&query=B%C3%B6hmer%2C+M">M. B枚hmer</a>, <a href="/search/nucl-ex?searchtype=author&query=Boyard%2C+J+L">J. L. Boyard</a>, <a href="/search/nucl-ex?searchtype=author&query=Cabanelas%2C+P">P. Cabanelas</a>, <a href="/search/nucl-ex?searchtype=author&query=Chernenko%2C+S">S. Chernenko</a>, <a href="/search/nucl-ex?searchtype=author&query=Dybczak%2C+A">A. Dybczak</a>, <a href="/search/nucl-ex?searchtype=author&query=Epple%2C+E">E. Epple</a>, <a href="/search/nucl-ex?searchtype=author&query=Fabbietti%2C+L">L. Fabbietti</a>, <a href="/search/nucl-ex?searchtype=author&query=Fateev%2C+O+V">O. V. Fateev</a>, <a href="/search/nucl-ex?searchtype=author&query=Finocchiaro%2C+P">P. Finocchiaro</a>, <a href="/search/nucl-ex?searchtype=author&query=Fonte%2C+P">P. Fonte</a>, <a href="/search/nucl-ex?searchtype=author&query=Friese%2C+J">J. Friese</a>, <a href="/search/nucl-ex?searchtype=author&query=Fr%C3%B6hlich%2C+I">I. Fr枚hlich</a>, <a href="/search/nucl-ex?searchtype=author&query=Galatyuk%2C+T">T. Galatyuk</a>, <a href="/search/nucl-ex?searchtype=author&query=Garzon%2C+J+A">J. A. Garzon</a>, <a href="/search/nucl-ex?searchtype=author&query=Gernh%C3%A4user%2C+R">R. Gernh盲user</a>, <a href="/search/nucl-ex?searchtype=author&query=G%C3%B6bel%2C+K">K. G枚bel</a>, <a href="/search/nucl-ex?searchtype=author&query=Golubeva%2C+M">M. Golubeva</a>, <a href="/search/nucl-ex?searchtype=author&query=Gonzalez-D%C3%ADaz%2C+D">D. Gonzalez-D铆az</a> , et al. (73 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1404.3014v2-abstract-short" style="display: inline;"> Results on $螞$ hyperon production are reported for collisions of p(3.5 GeV) + Nb, studied with the High Acceptance Di-Electron Spectrometer (HADES) at SIS18 at GSI Helmholtzzentrum for Heavy-Ion Research, Darmstadt. The transverse mass distributions in rapidity bins are well described by Boltzmann shapes with a maximum inverse slope parameter of about $90\,$MeV at a rapidity of $y=1.0$, i.e. sligh… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1404.3014v2-abstract-full').style.display = 'inline'; document.getElementById('1404.3014v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1404.3014v2-abstract-full" style="display: none;"> Results on $螞$ hyperon production are reported for collisions of p(3.5 GeV) + Nb, studied with the High Acceptance Di-Electron Spectrometer (HADES) at SIS18 at GSI Helmholtzzentrum for Heavy-Ion Research, Darmstadt. The transverse mass distributions in rapidity bins are well described by Boltzmann shapes with a maximum inverse slope parameter of about $90\,$MeV at a rapidity of $y=1.0$, i.e. slightly below the center-of-mass rapidity for nucleon-nucleon collisions, $y_{cm}=1.12$. The rapidity density decreases monotonically with increasing rapidity within a rapidity window ranging from 0.3 to 1.3. The $螞$ phase-space distribution is compared with results of other experiments and with predictions of two transport approaches which are available publicly. None of the present versions of the employed models is able to fully reproduce the experimental distributions, i.e. in absolute yield and in shape. Presumably, this finding results from an insufficient modelling in the transport models of the elementary processes being relevant for $螞$ production, rescattering and absorption. The present high-statistics data allow for a genuine two-dimensional investigation as a function of phase space of the self-analyzing $螞$ polarization in the weak decay $螞\rightarrow p 蟺^-$. Finite negative values of the polarization in the order of $5-20\,\%$ are observed over the entire phase space studied. The absolute value of the polarization increases almost linearly with increasing transverse momentum for $p_t>300\,$MeV/c and increases with decreasing rapidity for $y < 0.8$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1404.3014v2-abstract-full').style.display = 'none'; document.getElementById('1404.3014v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 14 April, 2014; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 11 April, 2014; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2014. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">accepted by Eur. Phys. J. A</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Eur. Phys. J. A 50 (2014) 81 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1403.6662">arXiv:1403.6662</a> <span> [<a href="https://arxiv.org/pdf/1403.6662">pdf</a>, <a href="https://arxiv.org/format/1403.6662">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevC.90.015202">10.1103/PhysRevC.90.015202 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Associate K^0 production in p+p collisions at 3.5 GeV: The role of Delta(1232)++ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/nucl-ex?searchtype=author&query=Arnold%2C+O">O. Arnold</a>, <a href="/search/nucl-ex?searchtype=author&query=Balanda%2C+A">A. Balanda</a>, <a href="/search/nucl-ex?searchtype=author&query=Belver%2C+D">D. Belver</a>, <a href="/search/nucl-ex?searchtype=author&query=Belyaev%2C+A">A. Belyaev</a>, <a href="/search/nucl-ex?searchtype=author&query=Berger-Chen%2C+J+C">J. C. Berger-Chen</a>, <a href="/search/nucl-ex?searchtype=author&query=Blanco%2C+A">A. Blanco</a>, <a href="/search/nucl-ex?searchtype=author&query=B%C3%B6hmer%2C+M">M. B枚hmer</a>, <a href="/search/nucl-ex?searchtype=author&query=Boyard%2C+J+L">J. L. Boyard</a>, <a href="/search/nucl-ex?searchtype=author&query=Cabanelas%2C+P">P. Cabanelas</a>, <a href="/search/nucl-ex?searchtype=author&query=Chernenko%2C+S">S. Chernenko</a>, <a href="/search/nucl-ex?searchtype=author&query=Dybczak%2C+A">A. Dybczak</a>, <a href="/search/nucl-ex?searchtype=author&query=Epple%2C+E">E. Epple</a>, <a href="/search/nucl-ex?searchtype=author&query=Fabbietti%2C+L">L. Fabbietti</a>, <a href="/search/nucl-ex?searchtype=author&query=Fateev%2C+O">O. Fateev</a>, <a href="/search/nucl-ex?searchtype=author&query=Finocchiaro%2C+P">P. Finocchiaro</a>, <a href="/search/nucl-ex?searchtype=author&query=Fonte%2C+P">P. Fonte</a>, <a href="/search/nucl-ex?searchtype=author&query=Friese%2C+J">J. Friese</a>, <a href="/search/nucl-ex?searchtype=author&query=Fr%C3%B6hlich%2C+I">I. Fr枚hlich</a>, <a href="/search/nucl-ex?searchtype=author&query=Galatyuk%2C+T">T. Galatyuk</a>, <a href="/search/nucl-ex?searchtype=author&query=Garz%C3%B3n%2C+J+A">J. A. Garz贸n</a>, <a href="/search/nucl-ex?searchtype=author&query=Gernh%C3%A4user%2C+R">R. Gernh盲user</a>, <a href="/search/nucl-ex?searchtype=author&query=G%C3%B6bel%2C+K">K. G枚bel</a>, <a href="/search/nucl-ex?searchtype=author&query=Golubeva%2C+M">M. Golubeva</a>, <a href="/search/nucl-ex?searchtype=author&query=Gonz%C3%A1lez-D%C3%ADaz%2C+D">D. Gonz谩lez-D铆az</a> , et al. (75 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1403.6662v2-abstract-short" style="display: inline;"> An exclusive analysis of the 4-body final states $\mathrm{螞+ p + 蟺^{+} + K^{0}}$ and $\mathrm{危^{0} + p + 蟺^{+} + K^{0}}$ measured with HADES for p+p collisions at a beam kinetic energy of 3.5 GeV is presented. The analysis uses various phase space variables, such as missing mass and invariant mass distributions, in the four particle event selection (p, $蟺^+$, $蟺^+$, $蟺^-$) to find cross sections… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1403.6662v2-abstract-full').style.display = 'inline'; document.getElementById('1403.6662v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1403.6662v2-abstract-full" style="display: none;"> An exclusive analysis of the 4-body final states $\mathrm{螞+ p + 蟺^{+} + K^{0}}$ and $\mathrm{危^{0} + p + 蟺^{+} + K^{0}}$ measured with HADES for p+p collisions at a beam kinetic energy of 3.5 GeV is presented. The analysis uses various phase space variables, such as missing mass and invariant mass distributions, in the four particle event selection (p, $蟺^+$, $蟺^+$, $蟺^-$) to find cross sections of the different production channels, contributions of the intermediate resonances $\mathrm{螖^{++}}$ and $\mathrm{危(1385)^{+}}$ and corresponding angular distributions. A dominant resonant production is seen, where the reaction $\mathrm{螞+ 螖^{++} + K^{0}}$ has an about ten times higher cross section ($\mathrm{29.45\pm0.08^{+1.67}_{-1.46}\pm2.06\,渭b}$) than the analogous non-resonant reaction ($\mathrm{2.57\pm0.02^{+0.21}_{-1.98}\pm0.18\,渭b}$). A similar result is obtained in the corresponding $危^{0}$ channels with $\mathrm{9.26\pm0.05^{+1.41}_{-0.31}\pm0.65\,\ mu b}$ in the resonant and $\mathrm{1.35\pm0.02^{+0.10}_{-1.35}\pm0.09\,渭b}$ in the non-resonant reactions. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1403.6662v2-abstract-full').style.display = 'none'; document.getElementById('1403.6662v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 27 March, 2014; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 26 March, 2014; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2014. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">12 pages, 11 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1403.3054">arXiv:1403.3054</a> <span> [<a href="https://arxiv.org/pdf/1403.3054">pdf</a>, <a href="https://arxiv.org/ps/1403.3054">ps</a>, <a href="https://arxiv.org/format/1403.3054">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1140/epja/i2014-14082-1">10.1140/epja/i2014-14082-1 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Baryon resonance production and dielectron decays in proton-proton collisions at 3.5 GeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/nucl-ex?searchtype=author&query=Balanda%2C+A">A. Balanda</a>, <a href="/search/nucl-ex?searchtype=author&query=Belver%2C+D">D. Belver</a>, <a href="/search/nucl-ex?searchtype=author&query=Belyaev%2C+A">A. Belyaev</a>, <a href="/search/nucl-ex?searchtype=author&query=Berger-Chen%2C+J+C">J. C. Berger-Chen</a>, <a href="/search/nucl-ex?searchtype=author&query=Blanco%2C+A">A. Blanco</a>, <a href="/search/nucl-ex?searchtype=author&query=B%C3%B6hmer%2C+M">M. B枚hmer</a>, <a href="/search/nucl-ex?searchtype=author&query=Boyard%2C+J+L">J. L. Boyard</a>, <a href="/search/nucl-ex?searchtype=author&query=Cabanelas%2C+P">P. Cabanelas</a>, <a href="/search/nucl-ex?searchtype=author&query=Chernenko%2C+S">S. Chernenko</a>, <a href="/search/nucl-ex?searchtype=author&query=Dybczak%2C+A">A. Dybczak</a>, <a href="/search/nucl-ex?searchtype=author&query=Epple%2C+E">E. Epple</a>, <a href="/search/nucl-ex?searchtype=author&query=Fabbietti%2C+L">L. Fabbietti</a>, <a href="/search/nucl-ex?searchtype=author&query=Fateev%2C+O">O. Fateev</a>, <a href="/search/nucl-ex?searchtype=author&query=Finocchiaro%2C+P">P. Finocchiaro</a>, <a href="/search/nucl-ex?searchtype=author&query=Fonte%2C+P">P. Fonte</a>, <a href="/search/nucl-ex?searchtype=author&query=Friese%2C+J">J. Friese</a>, <a href="/search/nucl-ex?searchtype=author&query=Fr%C3%B6hlich%2C+I">I. Fr枚hlich</a>, <a href="/search/nucl-ex?searchtype=author&query=Galatyuk%2C+T">T. Galatyuk</a>, <a href="/search/nucl-ex?searchtype=author&query=Garz%C3%B3n%2C+J+A">J. A. Garz贸n</a>, <a href="/search/nucl-ex?searchtype=author&query=Gernh%C3%A4user%2C+R">R. Gernh盲user</a>, <a href="/search/nucl-ex?searchtype=author&query=G%C3%B6bel%2C+K">K. G枚bel</a>, <a href="/search/nucl-ex?searchtype=author&query=Golubeva%2C+M">M. Golubeva</a>, <a href="/search/nucl-ex?searchtype=author&query=Gonz%C3%A1lez-D%C3%ADaz%2C+D">D. Gonz谩lez-D铆az</a>, <a href="/search/nucl-ex?searchtype=author&query=Guber%2C+F">F. Guber</a> , et al. (72 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1403.3054v2-abstract-short" style="display: inline;"> We report on baryon resonance production and decay in proton-proton collisions at a kinetic energy of $3.5$ GeV based on data measured with HADES. The exclusive channels $pp \rightarrow np蟺^{+}$ and $pp \rightarrow pp蟺^{0}$ as well as $pp \rightarrow ppe^{+}e^{-}$ are studied simultaneously for the first time. The invariant masses and angular distributions of the pion-nucleon systems were studied… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1403.3054v2-abstract-full').style.display = 'inline'; document.getElementById('1403.3054v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1403.3054v2-abstract-full" style="display: none;"> We report on baryon resonance production and decay in proton-proton collisions at a kinetic energy of $3.5$ GeV based on data measured with HADES. The exclusive channels $pp \rightarrow np蟺^{+}$ and $pp \rightarrow pp蟺^{0}$ as well as $pp \rightarrow ppe^{+}e^{-}$ are studied simultaneously for the first time. The invariant masses and angular distributions of the pion-nucleon systems were studied and compared to simulations based on a resonance model ansatz assuming saturation of the pion production by an incoherent sum of baryonic resonances (R) with masses $<2~$ GeV/$c^2$. A very good description of the one-pion production is achieved allowing for an estimate of individual baryon-resonance production-cross-sections which are used as input to calculate the dielectron yields from $R\rightarrow pe^+e^-$ decays. Two models of the resonance decays into dielectrons are examined assuming a point-like $RN 纬^*$ coupling and the dominance of the $蟻$ meson. The results of model calculations are compared to data from the exclusive $ppe^{+}e^{-}$ channel by means of the dielectron and $pe^+e^-$ invariant mass distributions. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1403.3054v2-abstract-full').style.display = 'none'; document.getElementById('1403.3054v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 28 March, 2014; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 12 March, 2014; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2014. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">17 pages, 14 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">ACM Class:</span> J.2 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Eur. Phys. J. A 50 (2014) 82 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1310.6198">arXiv:1310.6198</a> <span> [<a href="https://arxiv.org/pdf/1310.6198">pdf</a>, <a href="https://arxiv.org/format/1310.6198">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> An upper limit on hypertriton production in collisions of Ar(1.76 AGeV)+KCl </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=HADES+Collaboration"> HADES Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/nucl-ex?searchtype=author&query=Belver%2C+D">D. Belver</a>, <a href="/search/nucl-ex?searchtype=author&query=Blanco%2C+A">A. Blanco</a>, <a href="/search/nucl-ex?searchtype=author&query=B%C3%B6hmer%2C+M">M. B枚hmer</a>, <a href="/search/nucl-ex?searchtype=author&query=Boyard%2C+J+L">J. L. Boyard</a>, <a href="/search/nucl-ex?searchtype=author&query=Cabanelas%2C+P">P. Cabanelas</a>, <a href="/search/nucl-ex?searchtype=author&query=Castro%2C+E">E. Castro</a>, <a href="/search/nucl-ex?searchtype=author&query=Chernenko%2C+S">S. Chernenko</a>, <a href="/search/nucl-ex?searchtype=author&query=Destefanis%2C+M">M. Destefanis</a>, <a href="/search/nucl-ex?searchtype=author&query=Dohrmann%2C+F">F. Dohrmann</a>, <a href="/search/nucl-ex?searchtype=author&query=Dybczak%2C+A">A. Dybczak</a>, <a href="/search/nucl-ex?searchtype=author&query=Epple%2C+E">E. Epple</a>, <a href="/search/nucl-ex?searchtype=author&query=Fabbietti%2C+L">L. Fabbietti</a>, <a href="/search/nucl-ex?searchtype=author&query=Fateev%2C+O">O. Fateev</a>, <a href="/search/nucl-ex?searchtype=author&query=Finocchiaro%2C+P">P. Finocchiaro</a>, <a href="/search/nucl-ex?searchtype=author&query=Fonte%2C+P">P. Fonte</a>, <a href="/search/nucl-ex?searchtype=author&query=Friese%2C+J">J. Friese</a>, <a href="/search/nucl-ex?searchtype=author&query=Fr%C3%B6hlich%2C+I">I. Fr枚hlich</a>, <a href="/search/nucl-ex?searchtype=author&query=Galatyuk%2C+T">T. Galatyuk</a>, <a href="/search/nucl-ex?searchtype=author&query=Garz%C3%B3n%2C+J+A">J. A. Garz贸n</a>, <a href="/search/nucl-ex?searchtype=author&query=Gernh%C3%A4user%2C+R">R. Gernh盲user</a>, <a href="/search/nucl-ex?searchtype=author&query=Gilardi%2C+C">C. Gilardi</a>, <a href="/search/nucl-ex?searchtype=author&query=Golubeva%2C+M">M. Golubeva</a>, <a href="/search/nucl-ex?searchtype=author&query=Gonz%C3%A1lez-D%C3%ADaz%2C+D">D. Gonz谩lez-D铆az</a> , et al. (73 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1310.6198v3-abstract-short" style="display: inline;"> A high-statistic data sample of Ar(1.76 AGeV)+KCl events recorded with HADES is used to search for a hypertriton signal. An upper production limit per centrality-triggered event of $1.04$ x $10^{-3}$ on the $3蟽$ level is derived. Comparing this value with the number of successfully reconstructed $螞$ hyperons allows to determine an upper limit on the ratio $N_{_螞^3H}/N_螞$, which is confronted with… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1310.6198v3-abstract-full').style.display = 'inline'; document.getElementById('1310.6198v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1310.6198v3-abstract-full" style="display: none;"> A high-statistic data sample of Ar(1.76 AGeV)+KCl events recorded with HADES is used to search for a hypertriton signal. An upper production limit per centrality-triggered event of $1.04$ x $10^{-3}$ on the $3蟽$ level is derived. Comparing this value with the number of successfully reconstructed $螞$ hyperons allows to determine an upper limit on the ratio $N_{_螞^3H}/N_螞$, which is confronted with statistical and coalescence-type model calculations. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1310.6198v3-abstract-full').style.display = 'none'; document.getElementById('1310.6198v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 15 November, 2013; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 23 October, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2013. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1306.6779">arXiv:1306.6779</a> <span> [<a href="https://arxiv.org/pdf/1306.6779">pdf</a>, <a href="https://arxiv.org/ps/1306.6779">ps</a>, <a href="https://arxiv.org/format/1306.6779">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> </div> <p class="title is-5 mathjax"> Comprehensive Measurement of Neutron Yield Produced by 62 MeV Protons on Beryllium Target </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Osipenko%2C+M">M. Osipenko</a>, <a href="/search/nucl-ex?searchtype=author&query=Ripani%2C+M">M. Ripani</a>, <a href="/search/nucl-ex?searchtype=author&query=Alba%2C+R">R. Alba</a>, <a href="/search/nucl-ex?searchtype=author&query=Ricco%2C+G">G. Ricco</a>, <a href="/search/nucl-ex?searchtype=author&query=Schillaci%2C+M">M. Schillaci</a>, <a href="/search/nucl-ex?searchtype=author&query=Barbagallo%2C+M">M. Barbagallo</a>, <a href="/search/nucl-ex?searchtype=author&query=Boccaccio%2C+P">P. Boccaccio</a>, <a href="/search/nucl-ex?searchtype=author&query=Celentano%2C+A">A. Celentano</a>, <a href="/search/nucl-ex?searchtype=author&query=Colonna%2C+N">N. Colonna</a>, <a href="/search/nucl-ex?searchtype=author&query=Cosentino%2C+L">L. Cosentino</a>, <a href="/search/nucl-ex?searchtype=author&query=Del+Zoppo%2C+A">A. Del Zoppo</a>, <a href="/search/nucl-ex?searchtype=author&query=Di+Pietro%2C+A">A. Di Pietro</a>, <a href="/search/nucl-ex?searchtype=author&query=Esposito%2C+J">J. Esposito</a>, <a href="/search/nucl-ex?searchtype=author&query=Figuera%2C+P">P. Figuera</a>, <a href="/search/nucl-ex?searchtype=author&query=Finocchiaro%2C+P">P. Finocchiaro</a>, <a href="/search/nucl-ex?searchtype=author&query=Kostyukov%2C+A">A. Kostyukov</a>, <a href="/search/nucl-ex?searchtype=author&query=Maiolino%2C+C">C. Maiolino</a>, <a href="/search/nucl-ex?searchtype=author&query=Santonocito%2C+D">D. Santonocito</a>, <a href="/search/nucl-ex?searchtype=author&query=Scuderi%2C+V">V. Scuderi</a>, <a href="/search/nucl-ex?searchtype=author&query=Viberti%2C+C+M">C. M. Viberti</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1306.6779v1-abstract-short" style="display: inline;"> A low-power prototype of neutron amplifier, based on a 70 MeV, high current proton cyclotron being installed at LNL for the SPES RIB facility, was recently proposed within INFN-E project. This prototype uses a thick Beryllium converter to produce a fast neutron spectrum feeding a sub-critical reactor core. To complete the design of such facility the new measurement of neutron yield from a thick Be… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1306.6779v1-abstract-full').style.display = 'inline'; document.getElementById('1306.6779v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1306.6779v1-abstract-full" style="display: none;"> A low-power prototype of neutron amplifier, based on a 70 MeV, high current proton cyclotron being installed at LNL for the SPES RIB facility, was recently proposed within INFN-E project. This prototype uses a thick Beryllium converter to produce a fast neutron spectrum feeding a sub-critical reactor core. To complete the design of such facility the new measurement of neutron yield from a thick Beryllium target was performed at LNS. This measurement used liquid scintillator detectors to identify produced neutrons by Pulse Shape Discrimination and Time of Flight technique to measure neutron energy in the range 0.5-62 MeV. To extend the covered neutron energy range He3 detector was used to measure neutrons below 0.5 MeV. The obtained yields were normalized to the charge deposited by the proton beam on the metallic Beryllium target. These techniques allowed to achieve a wide angular coverage from 0 to 150 degrees and to explore almost complete neutron energy interval. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1306.6779v1-abstract-full').style.display = 'none'; document.getElementById('1306.6779v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 28 June, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2013. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">To appear in proceedings of ANIMMA International Conference, June 23-27, Marseille, France</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1305.3118">arXiv:1305.3118</a> <span> [<a href="https://arxiv.org/pdf/1305.3118">pdf</a>, <a href="https://arxiv.org/ps/1305.3118">ps</a>, <a href="https://arxiv.org/format/1305.3118">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevC.88.024904">10.1103/PhysRevC.88.024904 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Inclusive pion and eta production in p+Nb collisions at 3.5 GeV beam energy </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/nucl-ex?searchtype=author&query=Balanda%2C+A">A. Balanda</a>, <a href="/search/nucl-ex?searchtype=author&query=Belver%2C+D">D. Belver</a>, <a href="/search/nucl-ex?searchtype=author&query=Belyaev%2C+A">A. Belyaev</a>, <a href="/search/nucl-ex?searchtype=author&query=Berger-Chen%2C+J+C">J. C. Berger-Chen</a>, <a href="/search/nucl-ex?searchtype=author&query=Blanco%2C+A">A. Blanco</a>, <a href="/search/nucl-ex?searchtype=author&query=Boehmer%2C+M">M. Boehmer</a>, <a href="/search/nucl-ex?searchtype=author&query=Boyard%2C+J+L">J. L. Boyard</a>, <a href="/search/nucl-ex?searchtype=author&query=Cabanelas%2C+P">P. Cabanelas</a>, <a href="/search/nucl-ex?searchtype=author&query=Chernenko%2C+S">S. Chernenko</a>, <a href="/search/nucl-ex?searchtype=author&query=Dybczak%2C+A">A. Dybczak</a>, <a href="/search/nucl-ex?searchtype=author&query=Epple%2C+E">E. Epple</a>, <a href="/search/nucl-ex?searchtype=author&query=Fabbbietti%2C+L">L. Fabbbietti</a>, <a href="/search/nucl-ex?searchtype=author&query=Fateev%2C+O">O. Fateev</a>, <a href="/search/nucl-ex?searchtype=author&query=Finocchiaro%2C+P">P. Finocchiaro</a>, <a href="/search/nucl-ex?searchtype=author&query=Fonte%2C+P">P. Fonte</a>, <a href="/search/nucl-ex?searchtype=author&query=Friese%2C+J">J. Friese</a>, <a href="/search/nucl-ex?searchtype=author&query=Froehlich%2C+I">I. Froehlich</a>, <a href="/search/nucl-ex?searchtype=author&query=Galatyuk%2C+T">T. Galatyuk</a>, <a href="/search/nucl-ex?searchtype=author&query=Garzon%2C+J+A">J. A. Garzon</a>, <a href="/search/nucl-ex?searchtype=author&query=Gernhaeuser%2C+R">R. Gernhaeuser</a>, <a href="/search/nucl-ex?searchtype=author&query=Goebel%2C+K">K. Goebel</a>, <a href="/search/nucl-ex?searchtype=author&query=Golubeva%2C+M">M. Golubeva</a>, <a href="/search/nucl-ex?searchtype=author&query=Gonzalez-Diaz%2C+D">D. Gonzalez-Diaz</a>, <a href="/search/nucl-ex?searchtype=author&query=Guber%2C+F">F. Guber</a> , et al. (72 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1305.3118v2-abstract-short" style="display: inline;"> Data on inclusive pion and eta production measured with the dielectron spectrometer HADES in the reaction p+93Nb at a kinetic beam energy of 3.5 GeV are presented. Our results, obtained with the photon conversion method, supplement the rather sparse information on neutral meson production in proton-nucleus reactions existing for this bombarding energy regime. The reconstructed e+e-e+e- transverse-… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1305.3118v2-abstract-full').style.display = 'inline'; document.getElementById('1305.3118v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1305.3118v2-abstract-full" style="display: none;"> Data on inclusive pion and eta production measured with the dielectron spectrometer HADES in the reaction p+93Nb at a kinetic beam energy of 3.5 GeV are presented. Our results, obtained with the photon conversion method, supplement the rather sparse information on neutral meson production in proton-nucleus reactions existing for this bombarding energy regime. The reconstructed e+e-e+e- transverse-momentum and rapidity distributions are confronted with transport model calculations, which account fairly well for both pi0 and eta production. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1305.3118v2-abstract-full').style.display = 'none'; document.getElementById('1305.3118v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 5 July, 2013; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 14 May, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2013. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">12 pages, 9 figures, submitted to Physical Review C</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1305.2631">arXiv:1305.2631</a> <span> [<a href="https://arxiv.org/pdf/1305.2631">pdf</a>, <a href="https://arxiv.org/ps/1305.2631">ps</a>, <a href="https://arxiv.org/format/1305.2631">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.nuclphysa.2013.04.012">10.1016/j.nuclphysa.2013.04.012 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> pK+螞final state: towards the extraction of the ppK- contribution </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Fabbietti%2C+L">L. Fabbietti</a>, <a href="/search/nucl-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/nucl-ex?searchtype=author&query=Balanda%2C+A">A. Balanda</a>, <a href="/search/nucl-ex?searchtype=author&query=Belver%2C+D">D. Belver</a>, <a href="/search/nucl-ex?searchtype=author&query=Belyaev%2C+A+V">A. V. Belyaev</a>, <a href="/search/nucl-ex?searchtype=author&query=Berger-Chen%2C+J">J-C Berger-Chen</a>, <a href="/search/nucl-ex?searchtype=author&query=Blanco%2C+A">A. Blanco</a>, <a href="/search/nucl-ex?searchtype=author&query=B%C3%B6hmer%2C+M">M. B枚hmer</a>, <a href="/search/nucl-ex?searchtype=author&query=Boyard%2C+J+L">J. L. Boyard</a>, <a href="/search/nucl-ex?searchtype=author&query=Cabanelas%2C+P">P. Cabanelas</a>, <a href="/search/nucl-ex?searchtype=author&query=Castro%2C+E">E. Castro</a>, <a href="/search/nucl-ex?searchtype=author&query=Chernenko%2C+S">S. Chernenko</a>, <a href="/search/nucl-ex?searchtype=author&query=Christ%2C+T">T. Christ</a>, <a href="/search/nucl-ex?searchtype=author&query=Destefanis%2C+M">M. Destefanis</a>, <a href="/search/nucl-ex?searchtype=author&query=Dohrmann%2C+F">F. Dohrmann</a>, <a href="/search/nucl-ex?searchtype=author&query=Dybczak%2C+A">A. Dybczak</a>, <a href="/search/nucl-ex?searchtype=author&query=Epple%2C+E">E. Epple</a>, <a href="/search/nucl-ex?searchtype=author&query=Eberl%2C+T">T. Eberl</a>, <a href="/search/nucl-ex?searchtype=author&query=Fateev%2C+O+V">O. V. Fateev</a>, <a href="/search/nucl-ex?searchtype=author&query=Finocchiaro%2C+P">P. Finocchiaro</a>, <a href="/search/nucl-ex?searchtype=author&query=Fonte%2C+P">P. Fonte</a>, <a href="/search/nucl-ex?searchtype=author&query=Friese%2C+J">J. Friese</a>, <a href="/search/nucl-ex?searchtype=author&query=Fr%C3%B6hlich%2C+I">I. Fr枚hlich</a>, <a href="/search/nucl-ex?searchtype=author&query=Galatyuk%2C+T">T. Galatyuk</a>, <a href="/search/nucl-ex?searchtype=author&query=Garzon%2C+J+A">J. A. Garzon</a> , et al. (77 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1305.2631v3-abstract-short" style="display: inline;"> The reaction p(@3.5\,GeV)+p -> p+螞+ K^+ can be studied to search for the existence of kaonic bound states like ppK^- leading to this final state. This effort has been motivated by the assumption that in p+p collisions the 螞(1405) resonance can act as a doorway to the formation of the kaonic bound states. The status of this analysis within the HADES collaboration, with particular emphasis on the co… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1305.2631v3-abstract-full').style.display = 'inline'; document.getElementById('1305.2631v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1305.2631v3-abstract-full" style="display: none;"> The reaction p(@3.5\,GeV)+p -> p+螞+ K^+ can be studied to search for the existence of kaonic bound states like ppK^- leading to this final state. This effort has been motivated by the assumption that in p+p collisions the 螞(1405) resonance can act as a doorway to the formation of the kaonic bound states. The status of this analysis within the HADES collaboration, with particular emphasis on the comparison to simulations, is shown in this work and the deviation method utilized by the DISTO collaboration in a similar analysis is discussed. The outcome suggests the employment of a partial wave analysis to disentangle the different contributions to the measured pK^+螞final state. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1305.2631v3-abstract-full').style.display = 'none'; document.getElementById('1305.2631v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 25 July, 2013; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 12 May, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2013. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">9 pages, 6 figures, proceeding of the HYP2012 conference Nucl. Phys. A (2013)</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1302.7226">arXiv:1302.7226</a> <span> [<a href="https://arxiv.org/pdf/1302.7226">pdf</a>, <a href="https://arxiv.org/ps/1302.7226">ps</a>, <a href="https://arxiv.org/format/1302.7226">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.nima.2013.04.074">10.1016/j.nima.2013.04.074 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of neutron yield by 62 MeV proton beam on a thick Beryllium target </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Osipenko%2C+M">M. Osipenko</a>, <a href="/search/nucl-ex?searchtype=author&query=Ripani%2C+M">M. Ripani</a>, <a href="/search/nucl-ex?searchtype=author&query=Alba%2C+R">R. Alba</a>, <a href="/search/nucl-ex?searchtype=author&query=Ricco%2C+G">G. Ricco</a>, <a href="/search/nucl-ex?searchtype=author&query=Barbagallo%2C+M">M. Barbagallo</a>, <a href="/search/nucl-ex?searchtype=author&query=Boccaccio%2C+P">P. Boccaccio</a>, <a href="/search/nucl-ex?searchtype=author&query=Celentano%2C+A">A. Celentano</a>, <a href="/search/nucl-ex?searchtype=author&query=Colonna%2C+N">N. Colonna</a>, <a href="/search/nucl-ex?searchtype=author&query=Cosentino%2C+L">L. Cosentino</a>, <a href="/search/nucl-ex?searchtype=author&query=Del+Zoppo%2C+A">A. Del Zoppo</a>, <a href="/search/nucl-ex?searchtype=author&query=Di+Pietro%2C+A">A. Di Pietro</a>, <a href="/search/nucl-ex?searchtype=author&query=Esposito%2C+J">J. Esposito</a>, <a href="/search/nucl-ex?searchtype=author&query=Figuera%2C+P">P. Figuera</a>, <a href="/search/nucl-ex?searchtype=author&query=Finocchiaro%2C+P">P. Finocchiaro</a>, <a href="/search/nucl-ex?searchtype=author&query=Kostyukov%2C+A">A. Kostyukov</a>, <a href="/search/nucl-ex?searchtype=author&query=Maiolino%2C+C">C. Maiolino</a>, <a href="/search/nucl-ex?searchtype=author&query=Santonocito%2C+D">D. Santonocito</a>, <a href="/search/nucl-ex?searchtype=author&query=Schillaci%2C+M">M. Schillaci</a>, <a href="/search/nucl-ex?searchtype=author&query=Scuderi%2C+V">V. Scuderi</a>, <a href="/search/nucl-ex?searchtype=author&query=Viberti%2C+C+M">C. M. Viberti</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1302.7226v2-abstract-short" style="display: inline;"> The design of a low-power prototype of neutron amplifier recently proposed within the INFN-E project indicated the need for more accurate called for detailed data on the neutron yield produced by a proton beam with energy of about 70 MeV impinging on a thick Beryllium target. Such measurement was performed at the LNS superconducting cyclotron, covering a wide angular range from 0 to 150 degrees an… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1302.7226v2-abstract-full').style.display = 'inline'; document.getElementById('1302.7226v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1302.7226v2-abstract-full" style="display: none;"> The design of a low-power prototype of neutron amplifier recently proposed within the INFN-E project indicated the need for more accurate called for detailed data on the neutron yield produced by a proton beam with energy of about 70 MeV impinging on a thick Beryllium target. Such measurement was performed at the LNS superconducting cyclotron, covering a wide angular range from 0 to 150 degrees and a complete neutron energy interval from thermal to beam energy. Neutrons with energy above 0.5 MeV were measured by liquid scintillators exploiting their Time of Flight to determine the kinetic energy. For lower energy neutrons, down to thermal energy, a $^3$He detector was used. The obtained data are in good agreement with previous measurements at 0 degree with 66 MeV proton beam, covering neutron energies >10 MeV, as well as with measurements at few selected angles with protons of 46, 55 and 113 MeV energy. The present results extend the neutron yield data in the 60-70 MeV beam energy range. A comparison of measured yields to MCNP and Geant4 Monte Carlo simulations was performed. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1302.7226v2-abstract-full').style.display = 'none'; document.getElementById('1302.7226v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 28 June, 2013; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 28 February, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2013. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">12 pages, 20 figures, sources include tables of all measured data</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Nucl.Instrum.Meth.A723:8-18,2013 </p> </li> </ol> <nav class="pagination is-small is-centered breathe-horizontal" role="navigation" aria-label="pagination"> <a href="" class="pagination-previous is-invisible">Previous </a> <a href="/search/?searchtype=author&query=Finocchiaro%2C+P&start=50" class="pagination-next" >Next </a> <ul class="pagination-list"> <li> <a href="/search/?searchtype=author&query=Finocchiaro%2C+P&start=0" class="pagination-link is-current" aria-label="Goto page 1">1 </a> </li> <li> <a href="/search/?searchtype=author&query=Finocchiaro%2C+P&start=50" class="pagination-link " aria-label="Page 2" aria-current="page">2 </a> </li> </ul> </nav> <div class="is-hidden-tablet">  <span class="help" style="display: inline-block;"><a href="https://github.com/arXiv/arxiv-search/releases">Search v0.5.6 released 2020-02-24</a>  </span> </div> </div> </main> <footer> <div class="columns is-desktop" role="navigation" aria-label="Secondary">  <div class="column"> <div 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