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<button class="button is-small is-link">Go</button> </div> </div> </form> </div> </div> <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/2502.08197">arXiv:2502.08197</a> <span> [<a href="https://arxiv.org/pdf/2502.08197">pdf</a>, <a href="https://arxiv.org/ps/2502.08197">ps</a>, <a href="https://arxiv.org/format/2502.08197">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="Plasma Physics">physics.plasm-ph</span> </div> </div> <p class="title is-5 mathjax"> Continuous high-yield fast neutron generation with few-cycle laser pulses at 10 Hz for applications </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Stuhl%2C+L">L. Stuhl</a>, <a href="/search/physics?searchtype=author&query=Varmazyar%2C+P">P. Varmazyar</a>, <a href="/search/physics?searchtype=author&query=Elekes%2C+Z">Z. Elekes</a>, <a href="/search/physics?searchtype=author&query=Hal%C3%A1sz%2C+Z">Z. Hal谩sz</a>, <a href="/search/physics?searchtype=author&query=Gilinger%2C+T">T. Gilinger</a>, <a href="/search/physics?searchtype=author&query=F%C3%BCle%2C+M">M. F眉le</a>, <a href="/search/physics?searchtype=author&query=Karnok%2C+M">M. Karnok</a>, <a href="/search/physics?searchtype=author&query=Buz%C3%A1s%2C+E">E. Buz谩s</a>, <a href="/search/physics?searchtype=author&query=Kov%C3%A1cs%2C+A+P">A. P. Kov谩cs</a>, <a href="/search/physics?searchtype=author&query=Nagy%2C+B">B. Nagy</a>, <a href="/search/physics?searchtype=author&query=Moh%C3%A1csi%2C+A">A. Moh谩csi</a>, <a href="/search/physics?searchtype=author&query=B%C3%ADr%C3%B3%2C+B">B. B铆r贸</a>, <a href="/search/physics?searchtype=author&query=Csedreki%2C+L">L. Csedreki</a>, <a href="/search/physics?searchtype=author&query=Fenyvesi%2C+A">A. Fenyvesi</a>, <a href="/search/physics?searchtype=author&query=F%C3%BCl%C3%B6p%2C+Z">Zs. F眉l枚p</a>, <a href="/search/physics?searchtype=author&query=Korkulu%2C+Z">Z. Korkulu</a>, <a href="/search/physics?searchtype=author&query=Kuti%2C+I">I. Kuti</a>, <a href="/search/physics?searchtype=author&query=Csontos%2C+J">J. Csontos</a>, <a href="/search/physics?searchtype=author&query=Geetha%2C+P+P">P. P. Geetha</a>, <a href="/search/physics?searchtype=author&query=T%C3%B3th%2C+S">Sz. T贸th</a>, <a href="/search/physics?searchtype=author&query=Szab%C3%B3%2C+G">G. Szab贸</a>, <a href="/search/physics?searchtype=author&query=Osvay%2C+K">K. Osvay</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="2502.08197v1-abstract-short" style="display: inline;"> We present a laser-based neutron source that produces $1.8 \times 10^5$ neutrons/s with a conversion rate of $7.8 \times 10^5$ neutrons/J. Laser pulses of 12 fs and 23 mJ were focused onto a 430-nm-thick heavy water liquid sheet at a 10 Hz repetition rate. The resulting peak intensity of $4 \times 10^{18}$ W/cm$^2$ accelerated deuterium ions from the target rear side to a kinetic energy of 1 MeV.… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2502.08197v1-abstract-full').style.display = 'inline'; document.getElementById('2502.08197v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2502.08197v1-abstract-full" style="display: none;"> We present a laser-based neutron source that produces $1.8 \times 10^5$ neutrons/s with a conversion rate of $7.8 \times 10^5$ neutrons/J. Laser pulses of 12 fs and 23 mJ were focused onto a 430-nm-thick heavy water liquid sheet at a 10 Hz repetition rate. The resulting peak intensity of $4 \times 10^{18}$ W/cm$^2$ accelerated deuterium ions from the target rear side to a kinetic energy of 1 MeV. This deuteron beam induced $^{2}$H(d,n)$^{3}$He fusion reactions in a deuterated polyethylene target, producing fast neutrons. The neutron yield was measured using two independent detection systems: the LILITH time-of-flight spectrometer, consisting of eight plastic scintillators covering nearly $180^\circ$, and a calibrated bubble detector spectrometer. The neutron yield per laser shot is 35 times higher than that recently achieved by lasers with comparable pulse energies, while the conversion rate is the highest ever achieved by continuously operating, sub-100 fs lasers. The generated neutrons are emitted from an area of 0.65 cm$^2$ corresponding to the deuteron beam spot on the catcher. Their angular distribution is peaked in forward and backward directions in agreement with the literature data on the angular distribution of $^{2}$H(d,n)$^{3}$He reaction. The system operated continuously for several hours per day with an unprecedented stability of 5%. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2502.08197v1-abstract-full').style.display = 'none'; document.getElementById('2502.08197v1-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 February, 2025; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2025. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2411.05053">arXiv:2411.05053</a> <span> [<a href="https://arxiv.org/pdf/2411.05053">pdf</a>, <a href="https://arxiv.org/format/2411.05053">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.2021.165081">10.1016/j.nima.2021.165081 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Characterization of the LUNA neutron detector array for the measurement of the 13C(a,n)16O reaction </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Csedreki%2C+L">L. Csedreki</a>, <a href="/search/physics?searchtype=author&query=Ciani%2C+G+F">G. F. Ciani</a>, <a href="/search/physics?searchtype=author&query=Balibrea-Correa%2C+J">J. Balibrea-Correa</a>, <a href="/search/physics?searchtype=author&query=Best%2C+A">A. Best</a>, <a href="/search/physics?searchtype=author&query=Aliotta%2C+M">M. Aliotta</a>, <a href="/search/physics?searchtype=author&query=Barile%2C+F">F. Barile</a>, <a href="/search/physics?searchtype=author&query=Bemmerer%2C+D">D. Bemmerer</a>, <a href="/search/physics?searchtype=author&query=Boeltzig%2C+A">A. Boeltzig</a>, <a href="/search/physics?searchtype=author&query=Broggini%2C+C">C. Broggini</a>, <a href="/search/physics?searchtype=author&query=Bruno%2C+C+G">C. G. Bruno</a>, <a href="/search/physics?searchtype=author&query=Caciolli%2C+A">A. Caciolli</a>, <a href="/search/physics?searchtype=author&query=Cavanna%2C+F">F. Cavanna</a>, <a href="/search/physics?searchtype=author&query=Chillery%2C+T">T. Chillery</a>, <a href="/search/physics?searchtype=author&query=Colombetti%2C+P">P. Colombetti</a>, <a href="/search/physics?searchtype=author&query=Corvisiero%2C+P">P. Corvisiero</a>, <a href="/search/physics?searchtype=author&query=Davinson%2C+T">T. Davinson</a>, <a href="/search/physics?searchtype=author&query=Depalo%2C+R">R. Depalo</a>, <a href="/search/physics?searchtype=author&query=Di+Leva%2C+A">A. Di Leva</a>, <a href="/search/physics?searchtype=author&query=Elekes%2C+Z">Z. Elekes</a>, <a href="/search/physics?searchtype=author&query=Ferraro%2C+F">F. Ferraro</a>, <a href="/search/physics?searchtype=author&query=Fiore%2C+E+M">E. M. Fiore</a>, <a href="/search/physics?searchtype=author&query=Formicola%2C+A">A. Formicola</a>, <a href="/search/physics?searchtype=author&query=Fulop%2C+Z">Zs. Fulop</a>, <a href="/search/physics?searchtype=author&query=Gervino%2C+G">G. Gervino</a>, <a href="/search/physics?searchtype=author&query=Guglielmetti%2C+A">A. Guglielmetti</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="2411.05053v1-abstract-short" style="display: inline;"> We introduce the LUNA neutron detector array developed for the investigation of the 13C(a,n)16O reaction towards its astrophysical s-process Gamow peak in the low-background environment of the Laboratori Nazionali del Gran Sasso (LNGS). Eighteen 3He counters are arranged in two different configurations (in a vertical and a horizontal orientation) to optimize neutron detection effciency, target han… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2411.05053v1-abstract-full').style.display = 'inline'; document.getElementById('2411.05053v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2411.05053v1-abstract-full" style="display: none;"> We introduce the LUNA neutron detector array developed for the investigation of the 13C(a,n)16O reaction towards its astrophysical s-process Gamow peak in the low-background environment of the Laboratori Nazionali del Gran Sasso (LNGS). Eighteen 3He counters are arranged in two different configurations (in a vertical and a horizontal orientation) to optimize neutron detection effciency, target handling and target cooling over the investigated energy range Ea;lab = 300 - 400 keV (En = 2.2 - 2.6 MeV in emitted neutron energy). As a result of the deep underground location, the passive shielding of the setup and active background suppression using pulse shape discrimination, we reached a total background rate of 1.23 +- 0.12 counts/hour. This resulted in an improvement of two orders of magnitude over the state of the art allowing a direct measurement of the 13C(a,n)16O cross-section down to Ea;lab = 300 keV. The absolute neutron detection efficiency of the setup was determined using the 51V(p,n)51Cr reaction and an AmBe radioactive source, and completed with a Geant4 simulation. We determined a (34+-3) % and (38+-3) % detection efficiency for the vertical and horizontal configurations, respectively, for En = 2.4 MeV neutrons. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2411.05053v1-abstract-full').style.display = 'none'; document.getElementById('2411.05053v1-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 November, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 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">8 pages, 5 figures, to be published in NIMA</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Nuclear Inst. and Methods in Physics Research, A 994 (2021) 165081 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2405.07071">arXiv:2405.07071</a> <span> [<a href="https://arxiv.org/pdf/2405.07071">pdf</a>, <a href="https://arxiv.org/format/2405.07071">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Physics and Society">physics.soc-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="General Economics">econ.GN</span> </div> </div> <p class="title is-5 mathjax"> Colocation of skill related suppliers -- Revisiting coagglomeration using firm-to-firm network data </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Juh%C3%A1sz%2C+S">S谩ndor Juh谩sz</a>, <a href="/search/physics?searchtype=author&query=Elekes%2C+Z">Zolt谩n Elekes</a>, <a href="/search/physics?searchtype=author&query=Ily%C3%A9s%2C+V">Vir谩g Ily茅s</a>, <a href="/search/physics?searchtype=author&query=Neffke%2C+F">Frank Neffke</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="2405.07071v1-abstract-short" style="display: inline;"> Strong local clusters help firms compete on global markets. One explanation for this is that firms benefit from locating close to their suppliers and customers. However, the emergence of global supply chains shows that physical proximity is not necessarily a prerequisite to successfully manage customer-supplier relations anymore. This raises the question when firms need to colocate in value chains… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2405.07071v1-abstract-full').style.display = 'inline'; document.getElementById('2405.07071v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2405.07071v1-abstract-full" style="display: none;"> Strong local clusters help firms compete on global markets. One explanation for this is that firms benefit from locating close to their suppliers and customers. However, the emergence of global supply chains shows that physical proximity is not necessarily a prerequisite to successfully manage customer-supplier relations anymore. This raises the question when firms need to colocate in value chains and when they can coordinate over longer distances. We hypothesize that one important aspect is the extent to which supply chain partners exchange not just goods but also know-how. To test this, we build on an expanding literature that studies the drivers of industrial coagglomeration to analyze when supply chain connections lead firms to colocation. We exploit detailed micro-data for the Hungarian economy between 2015 and 2017, linking firm registries, employer-employee matched data and firm-to-firm transaction data from value-added tax records. This allows us to observe colocation, labor flows and value chain connections at the level of firms, as well as construct aggregated coagglomeration patterns, skill relatedness and input-output connections between pairs of industries. We show that supply chains are more likely to support coagglomeration when the industries involved are also skill related. That is, input-output and labor market channels reinforce each other, but supplier connections only matter for colocation when industries have similar labor requirements, suggesting that they employ similar types of know-how. We corroborate this finding by analyzing the interactions between firms, showing that supplier relations are more geographically constrained between companies that operate in skill related industries. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2405.07071v1-abstract-full').style.display = 'none'; document.getElementById('2405.07071v1-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 May, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 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">Supplementary information included</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2307.06867">arXiv:2307.06867</a> <span> [<a href="https://arxiv.org/pdf/2307.06867">pdf</a>, <a href="https://arxiv.org/format/2307.06867">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/s10050-022-00873-w">10.1140/epja/s10050-022-00873-w <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Silicon tracker array for RIB experiments at SAMURAI </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Stefanescu%2C+A+I">A. I. Stefanescu</a>, <a href="/search/physics?searchtype=author&query=Panin%2C+V">V. Panin</a>, <a href="/search/physics?searchtype=author&query=Trache%2C+L">L. Trache</a>, <a href="/search/physics?searchtype=author&query=Motobayashi%2C+T">T. Motobayashi</a>, <a href="/search/physics?searchtype=author&query=Otsu%2C+H">H. Otsu</a>, <a href="/search/physics?searchtype=author&query=Saastamoinen%2C+A">A. Saastamoinen</a>, <a href="/search/physics?searchtype=author&query=Uesaka%2C+T">T. Uesaka</a>, <a href="/search/physics?searchtype=author&query=Stuhl%2C+L">L. Stuhl</a>, <a href="/search/physics?searchtype=author&query=Tanaka%2C+J">J. Tanaka</a>, <a href="/search/physics?searchtype=author&query=Tudor%2C+D">D. Tudor</a>, <a href="/search/physics?searchtype=author&query=Stefanescu%2C+I+C">I. C. Stefanescu</a>, <a href="/search/physics?searchtype=author&query=Spiridon%2C+A+E">A. E. Spiridon</a>, <a href="/search/physics?searchtype=author&query=Yoneda%2C+K">K. Yoneda</a>, <a href="/search/physics?searchtype=author&query=Baba%2C+H">H. Baba</a>, <a href="/search/physics?searchtype=author&query=Kurokawa%2C+M">M. Kurokawa</a>, <a href="/search/physics?searchtype=author&query=Togano%2C+Y">Y. Togano</a>, <a href="/search/physics?searchtype=author&query=Halasz%2C+Z">Z. Halasz</a>, <a href="/search/physics?searchtype=author&query=Sasano%2C+M">M. Sasano</a>, <a href="/search/physics?searchtype=author&query=Ota%2C+S">S. Ota</a>, <a href="/search/physics?searchtype=author&query=Kubota%2C+Y">Y. Kubota</a>, <a href="/search/physics?searchtype=author&query=Ahn%2C+D+S">D. S. Ahn</a>, <a href="/search/physics?searchtype=author&query=Kobayashi%2C+T">T. Kobayashi</a>, <a href="/search/physics?searchtype=author&query=Elekes%2C+Z">Z. Elekes</a>, <a href="/search/physics?searchtype=author&query=Fukuda%2C+N">N. Fukuda</a>, <a href="/search/physics?searchtype=author&query=Takeda%2C+H">H. Takeda</a> , et al. (27 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="2307.06867v1-abstract-short" style="display: inline;"> This work describes a silicon tracker system developed for experiments with proton-rich radioactive ion beams at the SAMURAI superconducting spectrometer of RIBF at RIKEN. The system is designed for accurate angular reconstruction and atomic number identification of relativistic heavy ions and protons which are simultaneously produced in reactions motivated by studies of proton capture reactions o… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2307.06867v1-abstract-full').style.display = 'inline'; document.getElementById('2307.06867v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2307.06867v1-abstract-full" style="display: none;"> This work describes a silicon tracker system developed for experiments with proton-rich radioactive ion beams at the SAMURAI superconducting spectrometer of RIBF at RIKEN. The system is designed for accurate angular reconstruction and atomic number identification of relativistic heavy ions and protons which are simultaneously produced in reactions motivated by studies of proton capture reactions of interest for nuclear astrophysics. The technical characteristics of the tracking array are described in detail as are its performance in two pilot experiments. The physics justification for such a system is also presented. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2307.06867v1-abstract-full').style.display = 'none'; document.getElementById('2307.06867v1-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> 13 July, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2023. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Eur. Phys. J. A (2022) 58:223 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2005.00002">arXiv:2005.00002</a> <span> [<a href="https://arxiv.org/pdf/2005.00002">pdf</a>, <a href="https://arxiv.org/format/2005.00002">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="Cosmology and Nongalactic Astrophysics">astro-ph.CO</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/s10050-020-00149-1">10.1140/epja/s10050-020-00149-1 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Setup commissioning for an improved measurement of the D(p,gamma)3He cross section at Big Bang Nucleosynthesis energies </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Mossa%2C+V">V. Mossa</a>, <a href="/search/physics?searchtype=author&query=St%C3%B6ckel%2C+K">K. St枚ckel</a>, <a href="/search/physics?searchtype=author&query=Cavanna%2C+F">F. Cavanna</a>, <a href="/search/physics?searchtype=author&query=Ferraro%2C+F">F. Ferraro</a>, <a href="/search/physics?searchtype=author&query=Aliotta%2C+M">M. Aliotta</a>, <a href="/search/physics?searchtype=author&query=Barile%2C+F">F. Barile</a>, <a href="/search/physics?searchtype=author&query=Bemmerer%2C+D">D. Bemmerer</a>, <a href="/search/physics?searchtype=author&query=Best%2C+A">A. Best</a>, <a href="/search/physics?searchtype=author&query=Boeltzig%2C+A">A. Boeltzig</a>, <a href="/search/physics?searchtype=author&query=Broggini%2C+C">C. Broggini</a>, <a href="/search/physics?searchtype=author&query=Bruno%2C+C+G">C. G. Bruno</a>, <a href="/search/physics?searchtype=author&query=Caciolli%2C+A">A. Caciolli</a>, <a href="/search/physics?searchtype=author&query=Csedreki%2C+L">L. Csedreki</a>, <a href="/search/physics?searchtype=author&query=Chillery%2C+T">T. Chillery</a>, <a href="/search/physics?searchtype=author&query=Ciani%2C+G+F">G. F. Ciani</a>, <a href="/search/physics?searchtype=author&query=Corvisiero%2C+P">P. Corvisiero</a>, <a href="/search/physics?searchtype=author&query=Davinson%2C+T">T. Davinson</a>, <a href="/search/physics?searchtype=author&query=Depalo%2C+R">R. Depalo</a>, <a href="/search/physics?searchtype=author&query=Di+Leva%2C+A">A. Di Leva</a>, <a href="/search/physics?searchtype=author&query=Elekes%2C+Z">Z. Elekes</a>, <a href="/search/physics?searchtype=author&query=Fiore%2C+E+M">E. M. Fiore</a>, <a href="/search/physics?searchtype=author&query=Formicola%2C+A">A. Formicola</a>, <a href="/search/physics?searchtype=author&query=F%C3%BCl%C3%B6p%2C+Z">Zs. F眉l枚p</a>, <a href="/search/physics?searchtype=author&query=Gervino%2C+G">G. Gervino</a>, <a href="/search/physics?searchtype=author&query=Guglielmetti%2C+A">A. Guglielmetti</a> , et al. (22 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="2005.00002v1-abstract-short" style="display: inline;"> Among the reactions involved in the production and destruction of deuterium during Big Bang Nucleosynthesis, the deuterium-burning D(p,gamma)3He reaction has the largest uncertainty and limits the precision of theoretical estimates of primordial deuterium abundance. Here we report the results of a careful commissioning of the experimental setup used to measure the cross-section of the D(p,gamma)3H… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2005.00002v1-abstract-full').style.display = 'inline'; document.getElementById('2005.00002v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2005.00002v1-abstract-full" style="display: none;"> Among the reactions involved in the production and destruction of deuterium during Big Bang Nucleosynthesis, the deuterium-burning D(p,gamma)3He reaction has the largest uncertainty and limits the precision of theoretical estimates of primordial deuterium abundance. Here we report the results of a careful commissioning of the experimental setup used to measure the cross-section of the D(p,gamma)3He reaction at the Laboratory for Underground Nuclear Astrophysics of the Gran Sasso Laboratory (Italy). The commissioning was aimed at minimising all sources of systematic uncertainty in the measured cross sections. The overall systematic error achieved (< 3 %) will enable improved predictions of BBN deuterium abundance. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2005.00002v1-abstract-full').style.display = 'none'; document.getElementById('2005.00002v1-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, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 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">11 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/2001.08744">arXiv:2001.08744</a> <span> [<a href="https://arxiv.org/pdf/2001.08744">pdf</a>, <a href="https://arxiv.org/ps/2001.08744">ps</a>, <a href="https://arxiv.org/format/2001.08744">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/10.1140/epja/s10050-020-00077-0">10.1140/epja/s10050-020-00077-0 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> A new approach to monitor 13C-targets degradation in situ for 13C(alpha,n)16O cross-section measurements at LUNA </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Ciani%2C+G+F">G. F. Ciani</a>, <a href="/search/physics?searchtype=author&query=Csedreki%2C+L">L. Csedreki</a>, <a href="/search/physics?searchtype=author&query=Balibrea-Correa%2C+J">J. Balibrea-Correa</a>, <a href="/search/physics?searchtype=author&query=Best%2C+A">A. Best</a>, <a href="/search/physics?searchtype=author&query=Aliotta%2C+M">M. Aliotta</a>, <a href="/search/physics?searchtype=author&query=Barile%2C+F">F. Barile</a>, <a href="/search/physics?searchtype=author&query=Bemmerer%2C+D">D. Bemmerer</a>, <a href="/search/physics?searchtype=author&query=Boeltzig%2C+A">A. Boeltzig</a>, <a href="/search/physics?searchtype=author&query=Broggini%2C+C">C. Broggini</a>, <a href="/search/physics?searchtype=author&query=Bruno%2C+C+G">C. G. Bruno</a>, <a href="/search/physics?searchtype=author&query=Caciolli%2C+A">A. Caciolli</a>, <a href="/search/physics?searchtype=author&query=Cavanna%2C+F">F. Cavanna</a>, <a href="/search/physics?searchtype=author&query=Chillery%2C+T">T. Chillery</a>, <a href="/search/physics?searchtype=author&query=Colombetti%2C+P">P. Colombetti</a>, <a href="/search/physics?searchtype=author&query=Corvisiero%2C+P">P. Corvisiero</a>, <a href="/search/physics?searchtype=author&query=Davinson%2C+T">T. Davinson</a>, <a href="/search/physics?searchtype=author&query=Depalo%2C+R">R. Depalo</a>, <a href="/search/physics?searchtype=author&query=Di+Leva%2C+A">A. Di Leva</a>, <a href="/search/physics?searchtype=author&query=Di+Paolo%2C+L">L. Di Paolo</a>, <a href="/search/physics?searchtype=author&query=Elekes%2C+Z">Z. Elekes</a>, <a href="/search/physics?searchtype=author&query=Ferraro%2C+F">F. Ferraro</a>, <a href="/search/physics?searchtype=author&query=Fiore%2C+E+M">E. M. Fiore</a>, <a href="/search/physics?searchtype=author&query=Formicola%2C+A">A. Formicola</a>, <a href="/search/physics?searchtype=author&query=Fulop%2C+Z">Zs. Fulop</a>, <a href="/search/physics?searchtype=author&query=Gervino%2C+G">G. Gervino</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="2001.08744v2-abstract-short" style="display: inline;"> Direct measurements of reaction cross-sections at astrophysical energies often require the use of solid targets able to withstand high ion beam currents for extended periods of time. Thus, monitoring target thickness, isotopic composition, and target stoichiometry during data taking is critical to account for possible target modifications and to reduce uncertainties in the final cross-section resu… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2001.08744v2-abstract-full').style.display = 'inline'; document.getElementById('2001.08744v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2001.08744v2-abstract-full" style="display: none;"> Direct measurements of reaction cross-sections at astrophysical energies often require the use of solid targets able to withstand high ion beam currents for extended periods of time. Thus, monitoring target thickness, isotopic composition, and target stoichiometry during data taking is critical to account for possible target modifications and to reduce uncertainties in the final cross-section results. A common technique used for these purposes is the Nuclear Resonant Reaction Analysis (NRRA), which however requires that a narrow resonance be available inside the dynamic range of the accelerator used. In cases when this is not possible, as for example the 13C(alpha,n)16O reaction recently studied at low energies at the Laboratory for Underground Nuclear Astrophysics (LUNA) in Italy, alternative approaches must be found. Here, we present a new application of the shape analysis of primary gamma rays emitted by the 13C(p,g)14N radiative capture reaction. This approach was used to monitor 13C target degradation {\em in situ} during the 13C(alpha,n)16O data taking campaign. The results obtained are in agreement with evaluations subsequently performed at Atomki (Hungary) using the NRRA method. A preliminary application for the extraction of the 13C(alpha,n)16O reaction cross-section at one beam energy is also reported. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2001.08744v2-abstract-full').style.display = 'none'; document.getElementById('2001.08744v2-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 March, 2020; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 23 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">Comments:</span> <span class="has-text-grey-dark mathjax">10 pages, 6 figures, to be published in EPJ A</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 volume 56, Article number: 75 (2020) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1807.07637">arXiv:1807.07637</a> <span> [<a href="https://arxiv.org/pdf/1807.07637">pdf</a>, <a href="https://arxiv.org/format/1807.07637">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Physics and Society">physics.soc-ph</span> </div> </div> <p class="title is-5 mathjax"> Inventor collaboration and its persistence across European regions </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=T%C3%B3th%2C+G">Gerg艖 T贸th</a>, <a href="/search/physics?searchtype=author&query=Juh%C3%A1sz%2C+S">S谩ndor Juh谩sz</a>, <a href="/search/physics?searchtype=author&query=Elekes%2C+Z">Zolt谩n Elekes</a>, <a href="/search/physics?searchtype=author&query=Lengyel%2C+B">Bal谩zs Lengyel</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="1807.07637v1-abstract-short" style="display: inline;"> Inventor collaborations that span across regions facilitate the combination and diffusion of innovation-related knowledge. While remote partnerships are gaining importance; most R&D cooperations remain embedded in local environments and little is known about how spatial patterns of creation and persistence of ties in large-scale co-inventor networks differ. We use the publicly available OECD REGPA… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1807.07637v1-abstract-full').style.display = 'inline'; document.getElementById('1807.07637v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1807.07637v1-abstract-full" style="display: none;"> Inventor collaborations that span across regions facilitate the combination and diffusion of innovation-related knowledge. While remote partnerships are gaining importance; most R&D cooperations remain embedded in local environments and little is known about how spatial patterns of creation and persistence of ties in large-scale co-inventor networks differ. We use the publicly available OECD REGPAT database to construct a co-inventor network of the EU27 and continental EFTA countries from patents filed between 2006 and 2010, and identify those ties that had been persisted from before 2006. A community detection exercise reveals that persisted collaborations cluster at a smaller geographical scale than what is observed in the full network. We find that in general the estimated probability of persisted collaboration does not differ from the complete collaboration network when geographical distance, technological similarity or the number of common third partners across regions are assumed to influence tie probability separately. However, persistent collaboration gains exceptional likelihood if regions are proximate in all three dimensions. Our results therefore offer evidence that repeated inventor collaboration drives regional innovation systems towards isolation, which is a threat for European innovation policy. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1807.07637v1-abstract-full').style.display = 'none'; document.getElementById('1807.07637v1-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 July, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 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">14 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/1504.08171">arXiv:1504.08171</a> <span> [<a href="https://arxiv.org/pdf/1504.08171">pdf</a>, <a href="https://arxiv.org/format/1504.08171">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/10.1088/1748-0221/10/07/P07005">10.1088/1748-0221/10/07/P07005 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Response of Multi-strip Multi-gap Resistive Plate Chamber </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Datta%2C+U">Ushasi Datta</a>, <a href="/search/physics?searchtype=author&query=Chakraborty%2C+S">S. Chakraborty</a>, <a href="/search/physics?searchtype=author&query=Rahaman%2C+A">A. Rahaman</a>, <a href="/search/physics?searchtype=author&query=Basu%2C+P">P. Basu</a>, <a href="/search/physics?searchtype=author&query=Basu%2C+J">J. Basu</a>, <a href="/search/physics?searchtype=author&query=Bemmerer%2C+D">D. Bemmerer</a>, <a href="/search/physics?searchtype=author&query=Boretzky%2C+K">K. Boretzky</a>, <a href="/search/physics?searchtype=author&query=Elekes%2C+Z">Z. Elekes</a>, <a href="/search/physics?searchtype=author&query=Kempe%2C+M">M. Kempe</a>, <a href="/search/physics?searchtype=author&query=Munzenberg%2C+G">G. Munzenberg</a>, <a href="/search/physics?searchtype=author&query=Simon%2C+H">H. Simon</a>, <a href="/search/physics?searchtype=author&query=Sobiella%2C+M">M. Sobiella</a>, <a href="/search/physics?searchtype=author&query=Stach%2C+D">D. Stach</a>, <a href="/search/physics?searchtype=author&query=Wagner%2C+A">A. Wagner</a>, <a href="/search/physics?searchtype=author&query=Yakorev%2C+D">D. Yakorev</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="1504.08171v2-abstract-short" style="display: inline;"> A prototype of Multi-strip Multi-gap Resistive Plate chamber (MMRPC) with active area 40 cm $\times$ 20 cm has been developed at SINP, Kolkata. Detailed response of the developed detector was studied with the pulsed electron beam from ELBE at Helmholtz-Zentrum Dresden-Rossendorf. In this report the response of SINP developed MMRPC with different controlling parameters is described in details. The… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1504.08171v2-abstract-full').style.display = 'inline'; document.getElementById('1504.08171v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1504.08171v2-abstract-full" style="display: none;"> A prototype of Multi-strip Multi-gap Resistive Plate chamber (MMRPC) with active area 40 cm $\times$ 20 cm has been developed at SINP, Kolkata. Detailed response of the developed detector was studied with the pulsed electron beam from ELBE at Helmholtz-Zentrum Dresden-Rossendorf. In this report the response of SINP developed MMRPC with different controlling parameters is described in details. The obtained time resolution ($蟽_t$) of the detector after slew correction was 91.5$ \pm $3 ps. Position resolution measured along ($蟽_x$) and across ($蟽_y$) the strip was 2.8$\pm$0.6 cm and 0.58 cm, respectively. The measured absolute efficiency of the detector for minimum ionizing particle like electron was 95.8$\pm$1.3 $\%$. Better timing resolution of the detector can be achieved by restricting the events to a single strip. The response of the detector was mainly in avalanche mode but a few percentage of streamer mode response was also observed. A comparison of the response of these two modes with trigger rate was studied <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1504.08171v2-abstract-full').style.display = 'none'; document.getElementById('1504.08171v2-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 January, 2016; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 30 April, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 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">19 pages, 26 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Journal of Instrumentation 10 (2015) 7005 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1411.2888">arXiv:1411.2888</a> <span> [<a href="https://arxiv.org/pdf/1411.2888">pdf</a>, <a href="https://arxiv.org/ps/1411.2888">ps</a>, <a href="https://arxiv.org/format/1411.2888">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="Solar and Stellar Astrophysics">astro-ph.SR</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/i2014-14179-5">10.1140/epja/i2014-14179-5 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> A new study of the $^{22}$Ne(p,$纬$)$^{23}$Na reaction deep underground: Feasibility, setup, and first observation of the 186 keV resonance </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Cavanna%2C+F">F. Cavanna</a>, <a href="/search/physics?searchtype=author&query=Depalo%2C+R">R. Depalo</a>, <a href="/search/physics?searchtype=author&query=Menzel%2C+M+-">M. -L. Menzel</a>, <a href="/search/physics?searchtype=author&query=Aliotta%2C+M">M. Aliotta</a>, <a href="/search/physics?searchtype=author&query=Anders%2C+M">M. Anders</a>, <a href="/search/physics?searchtype=author&query=Bemmerer%2C+D">D. Bemmerer</a>, <a href="/search/physics?searchtype=author&query=Broggini%2C+C">C. Broggini</a>, <a href="/search/physics?searchtype=author&query=Bruno%2C+C+G">C. G. Bruno</a>, <a href="/search/physics?searchtype=author&query=Caciolli%2C+A">A. Caciolli</a>, <a href="/search/physics?searchtype=author&query=Corvisiero%2C+P">P. Corvisiero</a>, <a href="/search/physics?searchtype=author&query=Davinson%2C+T">T. Davinson</a>, <a href="/search/physics?searchtype=author&query=di+Leva%2C+A">A. di Leva</a>, <a href="/search/physics?searchtype=author&query=Elekes%2C+Z">Z. Elekes</a>, <a href="/search/physics?searchtype=author&query=Ferraro%2C+F">F. Ferraro</a>, <a href="/search/physics?searchtype=author&query=Formicola%2C+A">A. Formicola</a>, <a href="/search/physics?searchtype=author&query=F%C3%BCl%C3%B6p%2C+Z">Zs. F眉l枚p</a>, <a href="/search/physics?searchtype=author&query=Gervino%2C+G">G. Gervino</a>, <a href="/search/physics?searchtype=author&query=Guglielmetti%2C+A">A. Guglielmetti</a>, <a href="/search/physics?searchtype=author&query=Gustavino%2C+C">C. Gustavino</a>, <a href="/search/physics?searchtype=author&query=Gy%C3%BCrky%2C+G">Gy. Gy眉rky</a>, <a href="/search/physics?searchtype=author&query=Imbriani%2C+G">G. Imbriani</a>, <a href="/search/physics?searchtype=author&query=Junker%2C+M">M. Junker</a>, <a href="/search/physics?searchtype=author&query=Menegazzo%2C+R">R. Menegazzo</a>, <a href="/search/physics?searchtype=author&query=Prati%2C+P">P. Prati</a>, <a href="/search/physics?searchtype=author&query=Alvarez%2C+C+R">C. Rossi Alvarez</a> , et al. (6 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="1411.2888v2-abstract-short" style="display: inline;"> The $^{22}$Ne(p,$纬$)$^{23}$Na reaction takes part in the neon-sodium cycle of hydrogen burning. This cycle is active in asymptotic giant branch stars as well as in novae and contributes to the nucleosythesis of neon and sodium isotopes. In order to reduce the uncertainties in the predicted nucleosynthesis yields, new experimental efforts to measure the $^{22}$Ne(p,$纬$)$^{23}$Na cross section direc… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1411.2888v2-abstract-full').style.display = 'inline'; document.getElementById('1411.2888v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1411.2888v2-abstract-full" style="display: none;"> The $^{22}$Ne(p,$纬$)$^{23}$Na reaction takes part in the neon-sodium cycle of hydrogen burning. This cycle is active in asymptotic giant branch stars as well as in novae and contributes to the nucleosythesis of neon and sodium isotopes. In order to reduce the uncertainties in the predicted nucleosynthesis yields, new experimental efforts to measure the $^{22}$Ne(p,$纬$)$^{23}$Na cross section directly at the astrophysically relevant energies are needed. In the present work, a feasibility study for a $^{22}$Ne(p,$纬$)$^{23}$Na experiment at the Laboratory for Underground Nuclear Astrophysics (LUNA) 400\,kV accelerator deep underground in the Gran Sasso laboratory, Italy, is reported. The ion beam induced $纬$-ray background has been studied. The feasibility study led to the first observation of the $E_{\rm p}$ = 186\,keV resonance in a direct experiment. An experimental lower limit of 0.12\,$\times$\,10$^{-6}$\,eV has been obtained for the resonance strength. Informed by the feasibility study, a dedicated experimental setup for the $^{22}$Ne(p,$纬$)$^{23}$Na experiment has been developed. The new setup has been characterized by a study of the temperature and pressure profiles. The beam heating effect that reduces the effective neon gas density due to the heating by the incident proton beam has been studied using the resonance scan technique, and the size of this effect has been determined for a neon gas target. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1411.2888v2-abstract-full').style.display = 'none'; document.getElementById('1411.2888v2-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 November, 2014; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 11 November, 2014; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 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">Minor errors corrected; final version</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 (2014) 50: 179 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1406.5830">arXiv:1406.5830</a> <span> [<a href="https://arxiv.org/pdf/1406.5830">pdf</a>, <a href="https://arxiv.org/ps/1406.5830">ps</a>, <a href="https://arxiv.org/format/1406.5830">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/10.1140/epja/i2014-14112-0">10.1140/epja/i2014-14112-0 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Efficiency determination of resistive plate chambers for fast quasi-monoenergetic neutrons </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=R%C3%B6der%2C+M">M. R枚der</a>, <a href="/search/physics?searchtype=author&query=Elekes%2C+Z">Z. Elekes</a>, <a href="/search/physics?searchtype=author&query=Aumann%2C+T">T. Aumann</a>, <a href="/search/physics?searchtype=author&query=Bemmerer%2C+D">D. Bemmerer</a>, <a href="/search/physics?searchtype=author&query=Boretzky%2C+K">K. Boretzky</a>, <a href="/search/physics?searchtype=author&query=Caesar%2C+C">C. Caesar</a>, <a href="/search/physics?searchtype=author&query=Cowan%2C+T+E">T. E. Cowan</a>, <a href="/search/physics?searchtype=author&query=Hehner%2C+J">J. Hehner</a>, <a href="/search/physics?searchtype=author&query=Heil%2C+M">M. Heil</a>, <a href="/search/physics?searchtype=author&query=Kempe%2C+M">M. Kempe</a>, <a href="/search/physics?searchtype=author&query=Maroussov%2C+V">V. Maroussov</a>, <a href="/search/physics?searchtype=author&query=Nusair%2C+O">O. Nusair</a>, <a href="/search/physics?searchtype=author&query=Prokofiev%2C+A+V">A. V. Prokofiev</a>, <a href="/search/physics?searchtype=author&query=Reifarth%2C+R">R. Reifarth</a>, <a href="/search/physics?searchtype=author&query=Sobiella%2C+M">M. Sobiella</a>, <a href="/search/physics?searchtype=author&query=Stach%2C+D">D. Stach</a>, <a href="/search/physics?searchtype=author&query=Wagner%2C+A">A. Wagner</a>, <a href="/search/physics?searchtype=author&query=Yakorev%2C+D">D. Yakorev</a>, <a href="/search/physics?searchtype=author&query=Zilges%2C+A">A. Zilges</a>, <a href="/search/physics?searchtype=author&query=Zuber%2C+K">K. Zuber</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="1406.5830v2-abstract-short" style="display: inline;"> Composite detectors made of stainless steel converters and multigap resistive plate chambers have been irradiated with quasi-monoenergetic neutrons with a peak energy of 175MeV. The neutron detection efficiency has been determined using two different methods. The data are in agreement with the output of Monte Carlo simulations. The simulations are then extended to study the response of a hypotheti… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1406.5830v2-abstract-full').style.display = 'inline'; document.getElementById('1406.5830v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1406.5830v2-abstract-full" style="display: none;"> Composite detectors made of stainless steel converters and multigap resistive plate chambers have been irradiated with quasi-monoenergetic neutrons with a peak energy of 175MeV. The neutron detection efficiency has been determined using two different methods. The data are in agreement with the output of Monte Carlo simulations. The simulations are then extended to study the response of a hypothetical array made of these detectors to energetic neutrons from a radioactive ion beam experiment. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1406.5830v2-abstract-full').style.display = 'none'; document.getElementById('1406.5830v2-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 July, 2014; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 23 June, 2014; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 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">Submitted to Eur.Phys.J. A; upgraded version correcting some typos and updating ref. 6</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 (2014) 50: 112 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1311.1094">arXiv:1311.1094</a> <span> [<a href="https://arxiv.org/pdf/1311.1094">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/i2013-13137-1">10.1140/epja/i2013-13137-1 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Neutron total cross section measurements of gold and tantalum at the nELBE photoneutron source </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Hannaske%2C+R">Roland Hannaske</a>, <a href="/search/physics?searchtype=author&query=Elekes%2C+Z">Zoltan Elekes</a>, <a href="/search/physics?searchtype=author&query=Beyer%2C+R">Roland Beyer</a>, <a href="/search/physics?searchtype=author&query=Junghans%2C+A">Arnd Junghans</a>, <a href="/search/physics?searchtype=author&query=Bemmerer%2C+D">Daniel Bemmerer</a>, <a href="/search/physics?searchtype=author&query=Birgersson%2C+E">Evert Birgersson</a>, <a href="/search/physics?searchtype=author&query=Ferrari%2C+A">Anna Ferrari</a>, <a href="/search/physics?searchtype=author&query=Grosse%2C+E">Eckart Grosse</a>, <a href="/search/physics?searchtype=author&query=Kempe%2C+M">Mathias Kempe</a>, <a href="/search/physics?searchtype=author&query=K%C3%B6gler%2C+T">Toni K枚gler</a>, <a href="/search/physics?searchtype=author&query=Marta%2C+M">Michele Marta</a>, <a href="/search/physics?searchtype=author&query=Massarczyk%2C+R">Ralph Massarczyk</a>, <a href="/search/physics?searchtype=author&query=Matic%2C+A">Andrija Matic</a>, <a href="/search/physics?searchtype=author&query=Schramm%2C+G">Georg Schramm</a>, <a href="/search/physics?searchtype=author&query=Schwengner%2C+R">Ronald Schwengner</a>, <a href="/search/physics?searchtype=author&query=Wagner%2C+A">Andreas Wagner</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="1311.1094v1-abstract-short" style="display: inline;"> Neutron total cross sections of $^{197}$Au and $^\text{nat}$Ta have been measured at the nELBE photoneutron source in the energy range from 0.1 - 10 MeV with a statistical uncertainty of up to 2 % and a total systematic uncertainty of 1 %. This facility is optimized for the fast neutron energy range and combines an excellent time structure of the neutron pulses (electron bunch width 5 ps) with a s… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1311.1094v1-abstract-full').style.display = 'inline'; document.getElementById('1311.1094v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1311.1094v1-abstract-full" style="display: none;"> Neutron total cross sections of $^{197}$Au and $^\text{nat}$Ta have been measured at the nELBE photoneutron source in the energy range from 0.1 - 10 MeV with a statistical uncertainty of up to 2 % and a total systematic uncertainty of 1 %. This facility is optimized for the fast neutron energy range and combines an excellent time structure of the neutron pulses (electron bunch width 5 ps) with a short flight path of 7 m. Because of the low instantaneous neutron flux transmission measurements of neutron total cross sections are possible, that exhibit very different beam and background conditions than found at other neutron sources. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1311.1094v1-abstract-full').style.display = 'none'; document.getElementById('1311.1094v1-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 November, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 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">article (18 pages, 10 figures, 2 tables) with attached data tables (13 pages)</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 49 (2013) 137 </p> </li> </ol> <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 class="columns"> <div class="column"> <ul class="nav-spaced"> <li><a href="https://info.arxiv.org/about">About</a></li> <li><a href="https://info.arxiv.org/help">Help</a></li> </ul> </div> <div class="column"> <ul class="nav-spaced"> <li> <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" class="icon filter-black" role="presentation"><title>contact arXiv</title><desc>Click here to contact arXiv</desc><path d="M502.3 190.8c3.9-3.1 9.7-.2 9.7 4.7V400c0 26.5-21.5 48-48 48H48c-26.5 0-48-21.5-48-48V195.6c0-5 5.7-7.8 9.7-4.7 22.4 17.4 52.1 39.5 154.1 113.6 21.1 15.4 56.7 47.8 92.2 47.6 35.7.3 72-32.8 92.3-47.6 102-74.1 131.6-96.3 154-113.7zM256 320c23.2.4 56.6-29.2 73.4-41.4 132.7-96.3 142.8-104.7 173.4-128.7 5.8-4.5 9.2-11.5 9.2-18.9v-19c0-26.5-21.5-48-48-48H48C21.5 64 0 85.5 0 112v19c0 7.4 3.4 14.3 9.2 18.9 30.6 23.9 40.7 32.4 173.4 128.7 16.8 12.2 50.2 41.8 73.4 41.4z"/></svg> <a href="https://info.arxiv.org/help/contact.html"> Contact</a> </li> <li> <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" class="icon filter-black" role="presentation"><title>subscribe to arXiv mailings</title><desc>Click here to subscribe</desc><path d="M476 3.2L12.5 270.6c-18.1 10.4-15.8 35.6 2.2 43.2L121 358.4l287.3-253.2c5.5-4.9 13.3 2.6 8.6 8.3L176 407v80.5c0 23.6 28.5 32.9 42.5 15.8L282 426l124.6 52.2c14.2 6 30.4-2.9 33-18.2l72-432C515 7.8 493.3-6.8 476 3.2z"/></svg> <a href="https://info.arxiv.org/help/subscribe"> Subscribe</a> </li> </ul> </div> </div> </div>   <div class="column"> <div class="columns"> <div class="column"> <ul class="nav-spaced"> <li><a href="https://info.arxiv.org/help/license/index.html">Copyright</a></li> <li><a href="https://info.arxiv.org/help/policies/privacy_policy.html">Privacy Policy</a></li> </ul> </div> <div class="column sorry-app-links"> <ul class="nav-spaced"> <li><a href="https://info.arxiv.org/help/web_accessibility.html">Web Accessibility Assistance</a></li> <li> <p class="help"> <a class="a11y-main-link" href="https://status.arxiv.org" target="_blank">arXiv Operational Status <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 256 512" class="icon filter-dark_grey" role="presentation"><path d="M224.3 273l-136 136c-9.4 9.4-24.6 9.4-33.9 0l-22.6-22.6c-9.4-9.4-9.4-24.6 0-33.9l96.4-96.4-96.4-96.4c-9.4-9.4-9.4-24.6 0-33.9L54.3 103c9.4-9.4 24.6-9.4 33.9 0l136 136c9.5 9.4 9.5 24.6.1 34z"/></svg></a><br> Get status notifications via <a class="is-link" href="https://subscribe.sorryapp.com/24846f03/email/new" target="_blank"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" class="icon filter-black" role="presentation"><path d="M502.3 190.8c3.9-3.1 9.7-.2 9.7 4.7V400c0 26.5-21.5 48-48 48H48c-26.5 0-48-21.5-48-48V195.6c0-5 5.7-7.8 9.7-4.7 22.4 17.4 52.1 39.5 154.1 113.6 21.1 15.4 56.7 47.8 92.2 47.6 35.7.3 72-32.8 92.3-47.6 102-74.1 131.6-96.3 154-113.7zM256 320c23.2.4 56.6-29.2 73.4-41.4 132.7-96.3 142.8-104.7 173.4-128.7 5.8-4.5 9.2-11.5 9.2-18.9v-19c0-26.5-21.5-48-48-48H48C21.5 64 0 85.5 0 112v19c0 7.4 3.4 14.3 9.2 18.9 30.6 23.9 40.7 32.4 173.4 128.7 16.8 12.2 50.2 41.8 73.4 41.4z"/></svg>email</a> or <a class="is-link" href="https://subscribe.sorryapp.com/24846f03/slack/new" target="_blank"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 448 512" class="icon filter-black" role="presentation"><path d="M94.12 315.1c0 25.9-21.16 47.06-47.06 47.06S0 341 0 315.1c0-25.9 21.16-47.06 47.06-47.06h47.06v47.06zm23.72 0c0-25.9 21.16-47.06 47.06-47.06s47.06 21.16 47.06 47.06v117.84c0 25.9-21.16 47.06-47.06 47.06s-47.06-21.16-47.06-47.06V315.1zm47.06-188.98c-25.9 0-47.06-21.16-47.06-47.06S139 32 164.9 32s47.06 21.16 47.06 47.06v47.06H164.9zm0 23.72c25.9 0 47.06 21.16 47.06 47.06s-21.16 47.06-47.06 47.06H47.06C21.16 243.96 0 222.8 0 196.9s21.16-47.06 47.06-47.06H164.9zm188.98 47.06c0-25.9 21.16-47.06 47.06-47.06 25.9 0 47.06 21.16 47.06 47.06s-21.16 47.06-47.06 47.06h-47.06V196.9zm-23.72 0c0 25.9-21.16 47.06-47.06 47.06-25.9 0-47.06-21.16-47.06-47.06V79.06c0-25.9 21.16-47.06 47.06-47.06 25.9 0 47.06 21.16 47.06 47.06V196.9zM283.1 385.88c25.9 0 47.06 21.16 47.06 47.06 0 25.9-21.16 47.06-47.06 47.06-25.9 0-47.06-21.16-47.06-47.06v-47.06h47.06zm0-23.72c-25.9 0-47.06-21.16-47.06-47.06 0-25.9 21.16-47.06 47.06-47.06h117.84c25.9 0 47.06 21.16 47.06 47.06 0 25.9-21.16 47.06-47.06 47.06H283.1z"/></svg>slack</a> </p> </li> </ul> </div> </div> </div>  </div> </footer> <script src="https://static.arxiv.org/static/base/1.0.0a5/js/member_acknowledgement.js"></script> </body> </html>

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