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</div> <div class="control"> <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/2411.09480">arXiv:2411.09480</a> <span> [<a href="https://arxiv.org/pdf/2411.09480">pdf</a>, <a href="https://arxiv.org/format/2411.09480">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.110.024610">10.1103/PhysRevC.110.024610 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Mirror nucleon-transfer reactions from $^{18}$Ne and $^{18}$O </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Flavigny%2C+F">F. Flavigny</a>, <a href="/search/nucl-ex?searchtype=author&query=Keeley%2C+N">N. Keeley</a>, <a href="/search/nucl-ex?searchtype=author&query=Gillibert%2C+A">A. Gillibert</a>, <a href="/search/nucl-ex?searchtype=author&query=Lapoux%2C+V">V. Lapoux</a>, <a href="/search/nucl-ex?searchtype=author&query=Lemasson%2C+A">A. Lemasson</a>, <a href="/search/nucl-ex?searchtype=author&query=Audirac%2C+L">L. Audirac</a>, <a href="/search/nucl-ex?searchtype=author&query=Bastin%2C+B">B. Bastin</a>, <a href="/search/nucl-ex?searchtype=author&query=Boissinot%2C+S">S. Boissinot</a>, <a href="/search/nucl-ex?searchtype=author&query=Caccitti%2C+J">J. Caccitti</a>, <a href="/search/nucl-ex?searchtype=author&query=Corsi%2C+A">A. Corsi</a>, <a href="/search/nucl-ex?searchtype=author&query=Damoy%2C+S">S. Damoy</a>, <a href="/search/nucl-ex?searchtype=author&query=Franchoo%2C+S">S. Franchoo</a>, <a href="/search/nucl-ex?searchtype=author&query=Gangnant%2C+P">P. Gangnant</a>, <a href="/search/nucl-ex?searchtype=author&query=Gibelin%2C+J">J. Gibelin</a>, <a href="/search/nucl-ex?searchtype=author&query=Goupil%2C+J">J. Goupil</a>, <a href="/search/nucl-ex?searchtype=author&query=Hammache%2C+F">F. Hammache</a>, <a href="/search/nucl-ex?searchtype=author&query=Houarner%2C+C">C. Houarner</a>, <a href="/search/nucl-ex?searchtype=author&query=Jacquot%2C+B">B. Jacquot</a>, <a href="/search/nucl-ex?searchtype=author&query=Lebertre%2C+G">G. Lebertre</a>, <a href="/search/nucl-ex?searchtype=author&query=Legeard%2C+L">L. Legeard</a>, <a href="/search/nucl-ex?searchtype=author&query=M%C3%A9nager%2C+L">L. M茅nager</a>, <a href="/search/nucl-ex?searchtype=author&query=Morel%2C+V">V. Morel</a>, <a href="/search/nucl-ex?searchtype=author&query=Morfouace%2C+P">P. Morfouace</a>, <a href="/search/nucl-ex?searchtype=author&query=Pancin%2C+J">J. Pancin</a>, <a href="/search/nucl-ex?searchtype=author&query=Pollacco%2C+E+C">E. C. Pollacco</a> , et al. (4 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="2411.09480v1-abstract-short" style="display: inline;"> The $^{18}$Ne(d,t)$^{17}$Ne and $^{18}$Ne(d,$^3$He)$^{17}$F single-nucleon pickup reactions were measured at 16.5 MeV/nucleon in inverse kinematics together with elastic and inelastic scattering channels. The full set of measured exclusive differential cross sections was compared with the mirror reaction channels on stable $^{18}$O after consistent reanalysis using coupled reaction channels calcul… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2411.09480v1-abstract-full').style.display = 'inline'; document.getElementById('2411.09480v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2411.09480v1-abstract-full" style="display: none;"> The $^{18}$Ne(d,t)$^{17}$Ne and $^{18}$Ne(d,$^3$He)$^{17}$F single-nucleon pickup reactions were measured at 16.5 MeV/nucleon in inverse kinematics together with elastic and inelastic scattering channels. The full set of measured exclusive differential cross sections was compared with the mirror reaction channels on stable $^{18}$O after consistent reanalysis using coupled reaction channels calculations. Within this interpretation scheme, most of the spectroscopic factors extracted for the population of unbound states in $^{17}$F match within uncertainties with their mirror partners in $^{17}$O. However, for the deeply-bound neutron removal channel to $^{17}$Ne, a significant symmetry breaking with the mirror proton-removal channel leading to $^{17}$N is evidenced by an overall single-particle strength reduction. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2411.09480v1-abstract-full').style.display = 'none'; document.getElementById('2411.09480v1-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 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">Journal ref:</span> Phys. Rev. C 110, 024610 (2024) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2410.17004">arXiv:2410.17004</a> <span> [<a href="https://arxiv.org/pdf/2410.17004">pdf</a>, <a href="https://arxiv.org/format/2410.17004">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/s10050-023-01172-8">10.1140/epja/s10050-023-01172-8 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Shape evolution in even-mass $^{98-104}$Zr isotopes via lifetime measurements using the $纬纬$-coincidence technique </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Pasqualato%2C+G">G. Pasqualato</a>, <a href="/search/nucl-ex?searchtype=author&query=Ansari%2C+S">S. Ansari</a>, <a href="/search/nucl-ex?searchtype=author&query=Heines%2C+J+S">J. S. Heines</a>, <a href="/search/nucl-ex?searchtype=author&query=Modamio%2C+V">V. Modamio</a>, <a href="/search/nucl-ex?searchtype=author&query=G%C3%B6rgen%2C+A">A. G枚rgen</a>, <a href="/search/nucl-ex?searchtype=author&query=Korten%2C+W">W. Korten</a>, <a href="/search/nucl-ex?searchtype=author&query=Ljungvall%2C+J">J. Ljungvall</a>, <a href="/search/nucl-ex?searchtype=author&query=Cl%C3%A9ment%2C+E">E. Cl茅ment</a>, <a href="/search/nucl-ex?searchtype=author&query=Dudouet%2C+J">J. Dudouet</a>, <a href="/search/nucl-ex?searchtype=author&query=Lemasson%2C+A">A. Lemasson</a>, <a href="/search/nucl-ex?searchtype=author&query=Rodr%C3%ADguez%2C+T+R">T. R. Rodr铆guez</a>, <a href="/search/nucl-ex?searchtype=author&query=Allmond%2C+J+M">J. M. Allmond</a>, <a href="/search/nucl-ex?searchtype=author&query=Arici%2C+T">T. Arici</a>, <a href="/search/nucl-ex?searchtype=author&query=Beckmann%2C+K+S">K. S. Beckmann</a>, <a href="/search/nucl-ex?searchtype=author&query=Bruce%2C+A+M">A. M. Bruce</a>, <a href="/search/nucl-ex?searchtype=author&query=Doherty%2C+D">D. Doherty</a>, <a href="/search/nucl-ex?searchtype=author&query=Esmaylzadeh%2C+A">A. Esmaylzadeh</a>, <a href="/search/nucl-ex?searchtype=author&query=Gamba%2C+E+R">E. R. Gamba</a>, <a href="/search/nucl-ex?searchtype=author&query=Gerhard%2C+L">L. Gerhard</a>, <a href="/search/nucl-ex?searchtype=author&query=Gerl%2C+J">J. Gerl</a>, <a href="/search/nucl-ex?searchtype=author&query=Georgiev%2C+G">G. Georgiev</a>, <a href="/search/nucl-ex?searchtype=author&query=Ivanova%2C+D+P">D. P. Ivanova</a>, <a href="/search/nucl-ex?searchtype=author&query=Jolie%2C+J">J. Jolie</a>, <a href="/search/nucl-ex?searchtype=author&query=Kim%2C+Y+-">Y. -H. Kim</a>, <a href="/search/nucl-ex?searchtype=author&query=Knafla%2C+L">L. Knafla</a> , et al. (60 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="2410.17004v1-abstract-short" style="display: inline;"> The Zirconium (Z = 40) isotopic chain has attracted interest for more than four decades. The abrupt lowering of the energy of the first $2^+$ state and the increase in the transition strength B(E2; $2_1^\rightarrow 0_1^+$ going from $^{98}$Zr to $^{100}$Zr has been the first example of "quantum phase transition" in nuclear shapes, which has few equivalents in the nuclear chart. Although a multitud… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2410.17004v1-abstract-full').style.display = 'inline'; document.getElementById('2410.17004v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2410.17004v1-abstract-full" style="display: none;"> The Zirconium (Z = 40) isotopic chain has attracted interest for more than four decades. The abrupt lowering of the energy of the first $2^+$ state and the increase in the transition strength B(E2; $2_1^\rightarrow 0_1^+$ going from $^{98}$Zr to $^{100}$Zr has been the first example of "quantum phase transition" in nuclear shapes, which has few equivalents in the nuclear chart. Although a multitude of experiments have been performed to measure nuclear properties related to nuclear shapes and collectivity in the region, none of the measured lifetimes were obtained using the Recoil Distance Doppler Shift method in the $纬纬$-coincidence mode where a gate on the direct feeding transition of the state of interest allows a strict control of systematical errors. This work reports the results of lifetime measurements for the first yrast excited states in $^{98-104}$Zr carried out to extract reduced transition probabilities. The new lifetime values in $纬纬$-coincidence and $纬$-single mode are compared with the results of former experiments. Recent predictions of the Interacting Boson Model with Configuration Mixing, the Symmetry Conserving Configuration Mixing model based on the Hartree-Fock-Bogoliubov approach and the Monte Carlo Shell Model are presented and compared with the experimental data. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2410.17004v1-abstract-full').style.display = 'none'; document.getElementById('2410.17004v1-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 October, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Eur. Phys. J. A (2023) 59:276 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2409.12594">arXiv:2409.12594</a> <span> [<a href="https://arxiv.org/pdf/2409.12594">pdf</a>, <a href="https://arxiv.org/format/2409.12594">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"> Probing exotic cross-shell interactions at N=28 with single-neutron transfer on 47K </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Paxman%2C+C+J">C. J. Paxman</a>, <a href="/search/nucl-ex?searchtype=author&query=Matta%2C+A">A. Matta</a>, <a href="/search/nucl-ex?searchtype=author&query=Catford%2C+W+N">W. N. Catford</a>, <a href="/search/nucl-ex?searchtype=author&query=Lotay%2C+G">G. Lotay</a>, <a href="/search/nucl-ex?searchtype=author&query=Assi%C3%A9%2C+M">M. Assi茅</a>, <a href="/search/nucl-ex?searchtype=author&query=Cl%C3%A9ment%2C+E">E. Cl茅ment</a>, <a href="/search/nucl-ex?searchtype=author&query=Lemasson%2C+A">A. Lemasson</a>, <a href="/search/nucl-ex?searchtype=author&query=Ramos%2C+D">D. Ramos</a>, <a href="/search/nucl-ex?searchtype=author&query=Orr%2C+N+A">N. A. Orr</a>, <a href="/search/nucl-ex?searchtype=author&query=Galtarossa%2C+F">F. Galtarossa</a>, <a href="/search/nucl-ex?searchtype=author&query=Girard-Alcindor%2C+V">V. Girard-Alcindor</a>, <a href="/search/nucl-ex?searchtype=author&query=Dudouet%2C+J">J. Dudouet</a>, <a href="/search/nucl-ex?searchtype=author&query=Achouri%2C+N+L">N. L. Achouri</a>, <a href="/search/nucl-ex?searchtype=author&query=Ackermann%2C+D">D. Ackermann</a>, <a href="/search/nucl-ex?searchtype=author&query=Barrientos%2C+D">D. Barrientos</a>, <a href="/search/nucl-ex?searchtype=author&query=Beaumel%2C+D">D. Beaumel</a>, <a href="/search/nucl-ex?searchtype=author&query=Bednarczyk%2C+P">P. Bednarczyk</a>, <a href="/search/nucl-ex?searchtype=author&query=Benzoni%2C+G">G. Benzoni</a>, <a href="/search/nucl-ex?searchtype=author&query=Bracco%2C+A">A. Bracco</a>, <a href="/search/nucl-ex?searchtype=author&query=Canete%2C+L">L. Canete</a>, <a href="/search/nucl-ex?searchtype=author&query=Cederwall%2C+B">B. Cederwall</a>, <a href="/search/nucl-ex?searchtype=author&query=Ciemala%2C+M">M. Ciemala</a>, <a href="/search/nucl-ex?searchtype=author&query=Delahaye%2C+P">P. Delahaye</a>, <a href="/search/nucl-ex?searchtype=author&query=Doherty%2C+D+T">D. T. Doherty</a>, <a href="/search/nucl-ex?searchtype=author&query=Domingo-Pardo%2C+C">C. Domingo-Pardo</a> , et al. (54 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="2409.12594v1-abstract-short" style="display: inline;"> We present the first measurement of the $^{47}$K($d,p纬$)$^{48}$K transfer reaction, performed in inverse kinematics using a reaccelerated beam of $^{47}$K. The level scheme of $^{48}$K has been greatly extended with nine new bound excited states identified and spectroscopic factors deduced. Detailed comparisons with SDPF-U and SDPF-MU shell-model calculations reveal a number of discrepancies with… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2409.12594v1-abstract-full').style.display = 'inline'; document.getElementById('2409.12594v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2409.12594v1-abstract-full" style="display: none;"> We present the first measurement of the $^{47}$K($d,p纬$)$^{48}$K transfer reaction, performed in inverse kinematics using a reaccelerated beam of $^{47}$K. The level scheme of $^{48}$K has been greatly extended with nine new bound excited states identified and spectroscopic factors deduced. Detailed comparisons with SDPF-U and SDPF-MU shell-model calculations reveal a number of discrepancies with these results, and a preference for SDPF-MU is found. Intriguingly, an apparent systematic overestimation of spectroscopic factors and a poor reproduction of the energies for 1$^-$ states suggests that the mixing between the $蟺s^{\,\,\,1}_{1/2} d^{\,\,\,4}_{3/2}$ and $蟺s^{\,\,\,2}_{1/2} d^{\,\,\,3}_{3/2}$ proton configurations in $^{48}$K is not correctly described using current interactions, challenging our descriptions of light $N=28$ nuclei. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2409.12594v1-abstract-full').style.display = 'none'; document.getElementById('2409.12594v1-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 September, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 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">7 pages, 3 figures, 1 table</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2405.15601">arXiv:2405.15601</a> <span> [<a href="https://arxiv.org/pdf/2405.15601">pdf</a>, <a href="https://arxiv.org/format/2405.15601">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.110.034304">10.1103/PhysRevC.110.034304 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> High-resolution spectroscopy of neutron-rich Br isotopes and signatures for a prolate-to-oblate shape transition at N=56 </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Dudouet%2C+J">J. Dudouet</a>, <a href="/search/nucl-ex?searchtype=author&query=Colombi%2C+G">G. Colombi</a>, <a href="/search/nucl-ex?searchtype=author&query=Tello%2C+D+R">D. Reygadas Tello</a>, <a href="/search/nucl-ex?searchtype=author&query=Michelagnoli%2C+C">C. Michelagnoli</a>, <a href="/search/nucl-ex?searchtype=author&query=Dao%2C+D+D">D. D. Dao</a>, <a href="/search/nucl-ex?searchtype=author&query=Nowacki%2C+F">F. Nowacki</a>, <a href="/search/nucl-ex?searchtype=author&query=Abushawish%2C+M">M. Abushawish</a>, <a href="/search/nucl-ex?searchtype=author&query=Cl%C3%A9ment%2C+E">E. Cl茅ment</a>, <a href="/search/nucl-ex?searchtype=author&query=Costache%2C+C">C. Costache</a>, <a href="/search/nucl-ex?searchtype=author&query=Duch%C3%AAne%2C+G">G. Duch锚ne</a>, <a href="/search/nucl-ex?searchtype=author&query=Kandzia%2C+F">F. Kandzia</a>, <a href="/search/nucl-ex?searchtype=author&query=Lemasson%2C+A">A. Lemasson</a>, <a href="/search/nucl-ex?searchtype=author&query=Marginean%2C+N">N. Marginean</a>, <a href="/search/nucl-ex?searchtype=author&query=Marginean%2C+R">R. Marginean</a>, <a href="/search/nucl-ex?searchtype=author&query=Mihai%2C+C">C. Mihai</a>, <a href="/search/nucl-ex?searchtype=author&query=Pascu%2C+S">S. Pascu</a>, <a href="/search/nucl-ex?searchtype=author&query=Rejmund%2C+M">M. Rejmund</a>, <a href="/search/nucl-ex?searchtype=author&query=Rezynkina%2C+K">K. Rezynkina</a>, <a href="/search/nucl-ex?searchtype=author&query=Stezowski%2C+O">O. Stezowski</a>, <a href="/search/nucl-ex?searchtype=author&query=Turturica%2C+A">A. Turturica</a>, <a href="/search/nucl-ex?searchtype=author&query=Ujeniuc%2C+S">S. Ujeniuc</a>, <a href="/search/nucl-ex?searchtype=author&query=Astier%2C+A">A. Astier</a>, <a href="/search/nucl-ex?searchtype=author&query=de+Angelis%2C+G">G. de Angelis</a>, <a href="/search/nucl-ex?searchtype=author&query=de+France%2C+G">G. de France</a>, <a href="/search/nucl-ex?searchtype=author&query=Delafosse%2C+C">C. Delafosse</a> , et al. (17 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="2405.15601v2-abstract-short" style="display: inline;"> The first systematic experimental study of the neutron-rich Br isotopes with two complementary state-of-the-art techniques is presented. These isotopes have been populated in the fission process at two different facilities, GANIL and ILL. New spectroscopic information has been obtained for odd-even $^{87-93}$Br isotopes and the experimental results have been compared with state-of-the-art Large-Sc… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2405.15601v2-abstract-full').style.display = 'inline'; document.getElementById('2405.15601v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2405.15601v2-abstract-full" style="display: none;"> The first systematic experimental study of the neutron-rich Br isotopes with two complementary state-of-the-art techniques is presented. These isotopes have been populated in the fission process at two different facilities, GANIL and ILL. New spectroscopic information has been obtained for odd-even $^{87-93}$Br isotopes and the experimental results have been compared with state-of-the-art Large-Scale Shell-Model and DNO Shell-Model calculations. As a result of such theoretical approaches, a transition from prolate ($^{87,89}$Br) to oblate ($^{91,93}$Br) shapes is obtained from the subtle balance between proton and neutron quadrupole deformations, as a clear signature of pseudo-SU3 quadrupole regime. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2405.15601v2-abstract-full').style.display = 'none'; document.getElementById('2405.15601v2-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 September, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 24 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">17 pages, 24 figures, 5 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/2405.14305">arXiv:2405.14305</a> <span> [<a href="https://arxiv.org/pdf/2405.14305">pdf</a>, <a href="https://arxiv.org/format/2405.14305">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/PhysRevLett.131.262501">10.1103/PhysRevLett.131.262501 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> High-precision spectroscopy of $^{20}$O benchmarking ab-initio calculations in light nuclei </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Zanon%2C+I">I. Zanon</a>, <a href="/search/nucl-ex?searchtype=author&query=Cl%C3%A9ment%2C+E">E. Cl茅ment</a>, <a href="/search/nucl-ex?searchtype=author&query=Goasduff%2C+A">A. Goasduff</a>, <a href="/search/nucl-ex?searchtype=author&query=Men%C3%A9ndez%2C+J">J. Men茅ndez</a>, <a href="/search/nucl-ex?searchtype=author&query=Miyagi%2C+T">T. Miyagi</a>, <a href="/search/nucl-ex?searchtype=author&query=Assi%C3%A9%2C+M">M. Assi茅</a>, <a href="/search/nucl-ex?searchtype=author&query=Ciema%C5%82a%2C+M">M. Ciema艂a</a>, <a href="/search/nucl-ex?searchtype=author&query=Flavigny%2C+F">F. Flavigny</a>, <a href="/search/nucl-ex?searchtype=author&query=Lemasson%2C+A">A. Lemasson</a>, <a href="/search/nucl-ex?searchtype=author&query=Matta%2C+A">A. Matta</a>, <a href="/search/nucl-ex?searchtype=author&query=Ramos%2C+D">D. Ramos</a>, <a href="/search/nucl-ex?searchtype=author&query=Rejmund%2C+M">M. Rejmund</a>, <a href="/search/nucl-ex?searchtype=author&query=Achouri%2C+L">L. Achouri</a>, <a href="/search/nucl-ex?searchtype=author&query=Ackermann%2C+D">D. Ackermann</a>, <a href="/search/nucl-ex?searchtype=author&query=Barrientos%2C+D">D. Barrientos</a>, <a href="/search/nucl-ex?searchtype=author&query=Beaumel%2C+D">D. Beaumel</a>, <a href="/search/nucl-ex?searchtype=author&query=Benzoni%2C+G">G. Benzoni</a>, <a href="/search/nucl-ex?searchtype=author&query=Boston%2C+A+J">A. J. Boston</a>, <a href="/search/nucl-ex?searchtype=author&query=Boston%2C+H+C">H. C. Boston</a>, <a href="/search/nucl-ex?searchtype=author&query=Bottoni%2C+S">S. Bottoni</a>, <a href="/search/nucl-ex?searchtype=author&query=Bracco%2C+A">A. Bracco</a>, <a href="/search/nucl-ex?searchtype=author&query=Brugnara%2C+D">D. Brugnara</a>, <a href="/search/nucl-ex?searchtype=author&query=de+France%2C+G">G. de France</a>, <a href="/search/nucl-ex?searchtype=author&query=de+Sereville%2C+N">N. de Sereville</a>, <a href="/search/nucl-ex?searchtype=author&query=Delaunay%2C+F">F. Delaunay</a> , et al. (56 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="2405.14305v1-abstract-short" style="display: inline;"> The excited states of unstable $^{20}$O were investigated via $纬$-ray spectroscopy following the $^{19}$O$(d,p)^{20}$O reaction at 8 $A$MeV. By exploiting the Doppler Shift Attenuation Method, the lifetime of the 2$^+_2$ and 3$^+_1$ states were firmly established. From the $纬$-ray branching and E2/M1 mixing ratios for transitions deexciting the 2$^+_2$ and 3$^+_1$ states, the B(E2) and B(M1) were… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2405.14305v1-abstract-full').style.display = 'inline'; document.getElementById('2405.14305v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2405.14305v1-abstract-full" style="display: none;"> The excited states of unstable $^{20}$O were investigated via $纬$-ray spectroscopy following the $^{19}$O$(d,p)^{20}$O reaction at 8 $A$MeV. By exploiting the Doppler Shift Attenuation Method, the lifetime of the 2$^+_2$ and 3$^+_1$ states were firmly established. From the $纬$-ray branching and E2/M1 mixing ratios for transitions deexciting the 2$^+_2$ and 3$^+_1$ states, the B(E2) and B(M1) were determined. Various chiral effective field theory Hamiltonians, describing the nuclear properties beyond ground states, along with a standard USDB interaction, were compared with the experimentally obtained data. Such a comparison for a large set of $纬$-ray transition probabilities with the valence space in medium similarity renormalization group ab-initio calculations was performed for the first time in a nucleus far from stability. It was shown that the ab-initio approaches using chiral EFT forces are challenged by detailed high-precision spectroscopic properties of nuclei. The reduced transition probabilities were found to be a very constraining test of the performance of the ab-initio models. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2405.14305v1-abstract-full').style.display = 'none'; document.getElementById('2405.14305v1-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 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">Supplemental Material available</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Physical Review Letter 131, 262501 (2023) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2311.16165">arXiv:2311.16165</a> <span> [<a href="https://arxiv.org/pdf/2311.16165">pdf</a>, <a href="https://arxiv.org/format/2311.16165">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.nimb.2023.04.023">10.1016/j.nimb.2023.04.023 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> CATLIFE (Complementary Arm for Target LIke FragmEnts): Spectrometer for Target like fragments at VAMOS++ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Son%2C+Y">Y. Son</a>, <a href="/search/nucl-ex?searchtype=author&query=Kim%2C+Y+H">Y. H. Kim</a>, <a href="/search/nucl-ex?searchtype=author&query=Cho%2C+Y">Y. Cho</a>, <a href="/search/nucl-ex?searchtype=author&query=Choi%2C+S">S. Choi</a>, <a href="/search/nucl-ex?searchtype=author&query=Bae%2C+S">S. Bae</a>, <a href="/search/nucl-ex?searchtype=author&query=Hahn%2C+K+I">K. I. Hahn</a>, <a href="/search/nucl-ex?searchtype=author&query=Park%2C+J">J. Park</a>, <a href="/search/nucl-ex?searchtype=author&query=Navin%2C+A">A. Navin</a>, <a href="/search/nucl-ex?searchtype=author&query=Lemasson%2C+A">A. Lemasson</a>, <a href="/search/nucl-ex?searchtype=author&query=Rejmund%2C+M">M. Rejmund</a>, <a href="/search/nucl-ex?searchtype=author&query=Ramos%2C+D">D. Ramos</a>, <a href="/search/nucl-ex?searchtype=author&query=Cl%C3%A9ment%2C+E">E. Cl茅ment</a>, <a href="/search/nucl-ex?searchtype=author&query=Ackermann%2C+D">D. Ackermann</a>, <a href="/search/nucl-ex?searchtype=author&query=Utepov%2C+A">A. Utepov</a>, <a href="/search/nucl-ex?searchtype=author&query=Fougeres%2C+C">C. Fougeres</a>, <a href="/search/nucl-ex?searchtype=author&query=Thomas%2C+J+C">J. C. Thomas</a>, <a href="/search/nucl-ex?searchtype=author&query=Goupil%2C+J">J. Goupil</a>, <a href="/search/nucl-ex?searchtype=author&query=Fremont%2C+G">G. Fremont</a>, <a href="/search/nucl-ex?searchtype=author&query=de+France%2C+G">G. de France</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="2311.16165v1-abstract-short" style="display: inline;"> The multi-nucleon transfer reaction between 136Xe beam and 198Pt target at the beam energy 7 MeV/u was studied using the large acceptance spectrometer VAMOS++ coupled with the newly installed second arm time-of-flight and delayed $纬$-ray spectrometer CATLIFE (Complementary Arm for Target LIke FragmEnts). The CATLIFE detector is composed of a large area multi-wire proportional chamber and the EXOGA… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2311.16165v1-abstract-full').style.display = 'inline'; document.getElementById('2311.16165v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2311.16165v1-abstract-full" style="display: none;"> The multi-nucleon transfer reaction between 136Xe beam and 198Pt target at the beam energy 7 MeV/u was studied using the large acceptance spectrometer VAMOS++ coupled with the newly installed second arm time-of-flight and delayed $纬$-ray spectrometer CATLIFE (Complementary Arm for Target LIke FragmEnts). The CATLIFE detector is composed of a large area multi-wire proportional chamber and the EXOGAM HPGe clover detectors with an ion flight length of 1230 mm. Direct measurement of the target-like fragments (TLF) and the delayed $纬$-rays from the isomeric state helps to improve TLF identification. The use of the velocity of TLFs and the delayed $纬$-ray demonstrate the proof of principle and effectiveness of the new setup. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2311.16165v1-abstract-full').style.display = 'none'; document.getElementById('2311.16165v1-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 November, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2023. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms Volume 540, July 2023, Pages 259-261 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2311.09713">arXiv:2311.09713</a> <span> [<a href="https://arxiv.org/pdf/2311.09713">pdf</a>, <a href="https://arxiv.org/format/2311.09713">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.107.064318">10.1103/PhysRevC.107.064318 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Search for the origin of wobbling motion in the $ A \approx 130 $ region: The case of $^{131}$Xe </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Chakraborty%2C+S">S. Chakraborty</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhattacharyya%2C+S">S. Bhattacharyya</a>, <a href="/search/nucl-ex?searchtype=author&query=Banik%2C+R">R. Banik</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhattacharya%2C+S">Soumik Bhattacharya</a>, <a href="/search/nucl-ex?searchtype=author&query=Mukherjee%2C+G">G. Mukherjee</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhattacharya%2C+C">C. Bhattacharya</a>, <a href="/search/nucl-ex?searchtype=author&query=Biswas%2C+S">S. Biswas</a>, <a href="/search/nucl-ex?searchtype=author&query=Rajbanshi%2C+S">S. Rajbanshi</a>, <a href="/search/nucl-ex?searchtype=author&query=Dar%2C+S">Shabir Dar</a>, <a href="/search/nucl-ex?searchtype=author&query=Nandi%2C+S">S. Nandi</a>, <a href="/search/nucl-ex?searchtype=author&query=Ali%2C+S">Sajad Ali</a>, <a href="/search/nucl-ex?searchtype=author&query=Chatterjee%2C+S">S. Chatterjee</a>, <a href="/search/nucl-ex?searchtype=author&query=Das%2C+S">S. Das</a>, <a href="/search/nucl-ex?searchtype=author&query=Gupta%2C+S+D">S. Das Gupta</a>, <a href="/search/nucl-ex?searchtype=author&query=Ghugre%2C+S+S">S. S. Ghugre</a>, <a href="/search/nucl-ex?searchtype=author&query=Goswami%2C+A">A. Goswami</a>, <a href="/search/nucl-ex?searchtype=author&query=Lemasson%2C+A">A. Lemasson</a>, <a href="/search/nucl-ex?searchtype=author&query=Mondal%2C+D">Debasish Mondal</a>, <a href="/search/nucl-ex?searchtype=author&query=Mukhopadhyay%2C+S">S. Mukhopadhyay</a>, <a href="/search/nucl-ex?searchtype=author&query=Navin%2C+A">A. Navin</a>, <a href="/search/nucl-ex?searchtype=author&query=Pai%2C+H">H. Pai</a>, <a href="/search/nucl-ex?searchtype=author&query=Pal%2C+S">Surajit Pal</a>, <a href="/search/nucl-ex?searchtype=author&query=Pandit%2C+D">Deepak Pandit</a>, <a href="/search/nucl-ex?searchtype=author&query=Raut%2C+R">R. Raut</a>, <a href="/search/nucl-ex?searchtype=author&query=Ray%2C+P">Prithwijita Ray</a> , et al. (2 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="2311.09713v1-abstract-short" style="display: inline;"> In-beam $ 纬$-ray spectroscopy of $^{131}$Xe has been carried out to study the structure of the intruder $ 谓h_{11/2} $ band. Excited states were populated via an $ 伪$-induced fusion-evaporation reaction at E$ _伪 = 38 $ MeV. Inspection of $ 纬纬$-coincidence data resulted in the identification of a new rotational sequence. Based on the systematics of excitation energy, assigned spin-parity, decay patt… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2311.09713v1-abstract-full').style.display = 'inline'; document.getElementById('2311.09713v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2311.09713v1-abstract-full" style="display: none;"> In-beam $ 纬$-ray spectroscopy of $^{131}$Xe has been carried out to study the structure of the intruder $ 谓h_{11/2} $ band. Excited states were populated via an $ 伪$-induced fusion-evaporation reaction at E$ _伪 = 38 $ MeV. Inspection of $ 纬纬$-coincidence data resulted in the identification of a new rotational sequence. Based on the systematics of excitation energy, assigned spin-parity, decay pattern, and the electromagnetic character of the inter-band $ 螖I = 1 $ $ 纬$-transitions, this sequence is proposed as the unfavoured signature partner of the $ 谓h_{11/2} $ band. The structure of this band is further illuminated in the light of the triaxial particle rotor model (TPRM). The possibility of wobbling excitation in $ N = 77 $ Xe-Ba-Ce isotones has been explored in a systematic manner. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2311.09713v1-abstract-full').style.display = 'none'; document.getElementById('2311.09713v1-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 November, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2023. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. C 107, 064318 (2023) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2311.07103">arXiv:2311.07103</a> <span> [<a href="https://arxiv.org/pdf/2311.07103">pdf</a>, <a href="https://arxiv.org/format/2311.07103">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.nimb.2023.05.053">10.1016/j.nimb.2023.05.053 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Particle Identification at VAMOS++ with Machine Learning Techniques </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Cho%2C+Y">Y. Cho</a>, <a href="/search/nucl-ex?searchtype=author&query=Kim%2C+Y+H">Y. H. Kim</a>, <a href="/search/nucl-ex?searchtype=author&query=Choi%2C+S">S. Choi</a>, <a href="/search/nucl-ex?searchtype=author&query=Park%2C+J">J. Park</a>, <a href="/search/nucl-ex?searchtype=author&query=Bae%2C+S">S. Bae</a>, <a href="/search/nucl-ex?searchtype=author&query=Hahn%2C+K+I">K. I. Hahn</a>, <a href="/search/nucl-ex?searchtype=author&query=Son%2C+Y">Y. Son</a>, <a href="/search/nucl-ex?searchtype=author&query=Navin%2C+A">A. Navin</a>, <a href="/search/nucl-ex?searchtype=author&query=Lemasson%2C+A">A. Lemasson</a>, <a href="/search/nucl-ex?searchtype=author&query=Rejmund%2C+M">M. Rejmund</a>, <a href="/search/nucl-ex?searchtype=author&query=Ramos%2C+D">D. Ramos</a>, <a href="/search/nucl-ex?searchtype=author&query=Ackermann%2C+D">D. Ackermann</a>, <a href="/search/nucl-ex?searchtype=author&query=Utepov%2C+A">A. Utepov</a>, <a href="/search/nucl-ex?searchtype=author&query=Fourgeres%2C+C">C. Fourgeres</a>, <a href="/search/nucl-ex?searchtype=author&query=Thomas%2C+J+C">J. C. Thomas</a>, <a href="/search/nucl-ex?searchtype=author&query=Goupil%2C+J">J. Goupil</a>, <a href="/search/nucl-ex?searchtype=author&query=Fremont%2C+G">G. Fremont</a>, <a href="/search/nucl-ex?searchtype=author&query=de+France%2C+G">G. de France</a>, <a href="/search/nucl-ex?searchtype=author&query=Watanabe%2C+Y+X">Y. X. Watanabe</a>, <a href="/search/nucl-ex?searchtype=author&query=Hirayama%2C+Y">Y. Hirayama</a>, <a href="/search/nucl-ex?searchtype=author&query=Jeong%2C+S">S. Jeong</a>, <a href="/search/nucl-ex?searchtype=author&query=Niwase%2C+T">T. Niwase</a>, <a href="/search/nucl-ex?searchtype=author&query=Miyatake%2C+H">H. Miyatake</a>, <a href="/search/nucl-ex?searchtype=author&query=Schury%2C+P">P. Schury</a>, <a href="/search/nucl-ex?searchtype=author&query=Rosenbusch%2C+M">M. Rosenbusch</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="2311.07103v2-abstract-short" style="display: inline;"> Multi-nucleon transfer reaction between 136Xe beam and 198Pt target was performed using the VAMOS++ spectrometer at GANIL to study the structure of n-rich nuclei around N=126. Unambiguous charge state identification was obtained by combining two supervised machine learning methods, deep neural network (DNN) and positional correction using a gradient-boosting decision tree (GBDT). The new method re… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2311.07103v2-abstract-full').style.display = 'inline'; document.getElementById('2311.07103v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2311.07103v2-abstract-full" style="display: none;"> Multi-nucleon transfer reaction between 136Xe beam and 198Pt target was performed using the VAMOS++ spectrometer at GANIL to study the structure of n-rich nuclei around N=126. Unambiguous charge state identification was obtained by combining two supervised machine learning methods, deep neural network (DNN) and positional correction using a gradient-boosting decision tree (GBDT). The new method reduced the complexity of the kinetic energy calibration and outperformed the conventional method, improving the charge state resolution by 8% <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2311.07103v2-abstract-full').style.display = 'none'; document.getElementById('2311.07103v2-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 November, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 13 November, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2023. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Volume 541, August 2023, Pages 240-242 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2307.03752">arXiv:2307.03752</a> <span> [<a href="https://arxiv.org/pdf/2307.03752">pdf</a>, <a href="https://arxiv.org/format/2307.03752">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.2023.168407">10.1016/j.nima.2023.168407 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Fast trajectory reconstruction techniques for the large acceptance magnetic spectrometer VAMOS++ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Lemasson%2C+A">A. Lemasson</a>, <a href="/search/nucl-ex?searchtype=author&query=Rejmund%2C+M">M. Rejmund</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="2307.03752v1-abstract-short" style="display: inline;"> The large angular and momentum acceptance magnetic spectrometer VAMOS++, at GANIL, France, is frequently used for nuclear structure and reaction dynamics studies. It provides an event-by-event identification of heavy ions produced in nuclear reactions at beam energies around the Coulomb barrier. The highly non-linear ion optics of VAMOS++ requires the use of the heavy ion trajectory reconstruction… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2307.03752v1-abstract-full').style.display = 'inline'; document.getElementById('2307.03752v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2307.03752v1-abstract-full" style="display: none;"> The large angular and momentum acceptance magnetic spectrometer VAMOS++, at GANIL, France, is frequently used for nuclear structure and reaction dynamics studies. It provides an event-by-event identification of heavy ions produced in nuclear reactions at beam energies around the Coulomb barrier. The highly non-linear ion optics of VAMOS++ requires the use of the heavy ion trajectory reconstruction methods in the spectrometer to obtain the high-resolution definition of the measured atomic mass number. Three different trajectory reconstruction methods, developed and used for VAMOS++, are presented in this work. The performances obtained, in terms of resolution of reconstructed atomic mass number, are demonstrated and discussed using a single data-set of fission fragments detected in the spectrometer. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2307.03752v1-abstract-full').style.display = 'none'; document.getElementById('2307.03752v1-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 June, 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">Comments:</span> <span class="has-text-grey-dark mathjax">Accepted for publication in Nuclear Instruments and Methods in Physics Research Section A</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Nucl. Instr. and Meth. A 1054, 168407 (2023) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2306.10818">arXiv:2306.10818</a> <span> [<a href="https://arxiv.org/pdf/2306.10818">pdf</a>, <a href="https://arxiv.org/format/2306.10818">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/s10050-023-01053-0">10.1140/epja/s10050-023-01053-0 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Advancements of $纬$-ray spectroscopy of isotopically identified fission fragments with AGATA and VAMOS++ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Lemasson%2C+A">A. Lemasson</a>, <a href="/search/nucl-ex?searchtype=author&query=Dudouet%2C+J">J. Dudouet</a>, <a href="/search/nucl-ex?searchtype=author&query=Rejmund%2C+M">M. Rejmund</a>, <a href="/search/nucl-ex?searchtype=author&query=Ljungvall%2C+J">J. Ljungvall</a>, <a href="/search/nucl-ex?searchtype=author&query=G%C3%B6rgen%2C+A">A. G枚rgen</a>, <a href="/search/nucl-ex?searchtype=author&query=Korten%2C+W">W. Korten</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="2306.10818v1-abstract-short" style="display: inline;"> $纬$-ray spectroscopy of fission fragments is a powerful method for studies of nuclear structure properties. Recent results on the spectroscopy of fission fragments, using the combination of the AGATA $纬… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2306.10818v1-abstract-full').style.display = 'inline'; document.getElementById('2306.10818v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2306.10818v1-abstract-full" style="display: none;"> $纬$-ray spectroscopy of fission fragments is a powerful method for studies of nuclear structure properties. Recent results on the spectroscopy of fission fragments, using the combination of the AGATA $纬$-ray tracking array and the VAMOS++ large acceptance magnetic spectrometer at GANIL, are reported. A comparison of the performance of the large germanium detector arrays EXOGAM and AGATA illustrates the advances in $纬$-ray spectroscopy of fission fragments. Selected results are highlighted for prompt $纬$-ray spectroscopy studies, measurements of short lifetimes of excited states with the Recoil Distance Doppler-Shift method, using both AGATA and VAMOS++ and prompt-delayed $纬$-ray spectroscopy studies using AGATA, VAMOS++ and EXOGAM. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2306.10818v1-abstract-full').style.display = 'none'; document.getElementById('2306.10818v1-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 June, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2023. </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, 134 (2023) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2302.14382">arXiv:2302.14382</a> <span> [<a href="https://arxiv.org/pdf/2302.14382">pdf</a>, <a href="https://arxiv.org/format/2302.14382">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"> N=16 magicity revealed at the proton drip-line through the study of 35Ca </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Lalanne%2C+L">L. Lalanne</a>, <a href="/search/nucl-ex?searchtype=author&query=Sorlin%2C+O">O. Sorlin</a>, <a href="/search/nucl-ex?searchtype=author&query=Poves%2C+A">A. Poves</a>, <a href="/search/nucl-ex?searchtype=author&query=Assi%C3%A9%2C+M">M. Assi茅</a>, <a href="/search/nucl-ex?searchtype=author&query=Hammache%2C+F">F. Hammache</a>, <a href="/search/nucl-ex?searchtype=author&query=Koyama%2C+S">S. Koyama</a>, <a href="/search/nucl-ex?searchtype=author&query=Suzuki%2C+D">D. Suzuki</a>, <a href="/search/nucl-ex?searchtype=author&query=Flavigny%2C+F">F. Flavigny</a>, <a href="/search/nucl-ex?searchtype=author&query=Girard-Alcindor%2C+V">V. Girard-Alcindor</a>, <a href="/search/nucl-ex?searchtype=author&query=Lemasson%2C+A">A. Lemasson</a>, <a href="/search/nucl-ex?searchtype=author&query=Matta%2C+A">A. Matta</a>, <a href="/search/nucl-ex?searchtype=author&query=Roger%2C+T">T. Roger</a>, <a href="/search/nucl-ex?searchtype=author&query=Beaumel%2C+D">D. Beaumel</a>, <a href="/search/nucl-ex?searchtype=author&query=Blumenfeld%2C+Y">Y Blumenfeld</a>, <a href="/search/nucl-ex?searchtype=author&query=Brown%2C+B+A">B. A. Brown</a>, <a href="/search/nucl-ex?searchtype=author&query=Santos%2C+F+D+O">F. De Oliveira Santos</a>, <a href="/search/nucl-ex?searchtype=author&query=Delaunay%2C+F">F. Delaunay</a>, <a href="/search/nucl-ex?searchtype=author&query=de+S%C3%A9r%C3%A9ville%2C+N">N. de S茅r茅ville</a>, <a href="/search/nucl-ex?searchtype=author&query=Franchoo%2C+S">S. Franchoo</a>, <a href="/search/nucl-ex?searchtype=author&query=Gibelin%2C+J">J. Gibelin</a>, <a href="/search/nucl-ex?searchtype=author&query=Guillot%2C+J">J. Guillot</a>, <a href="/search/nucl-ex?searchtype=author&query=Kamalou%2C+O">O. Kamalou</a>, <a href="/search/nucl-ex?searchtype=author&query=Kitamura%2C+N">N. Kitamura</a>, <a href="/search/nucl-ex?searchtype=author&query=Lapoux%2C+V">V. Lapoux</a>, <a href="/search/nucl-ex?searchtype=author&query=Mauss%2C+B">B. Mauss</a> , et al. (5 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="2302.14382v1-abstract-short" style="display: inline;"> The last proton bound calcium isotope $^{35}$Ca has been studied for the first time, using the $^{37}$Ca($p, t$)$^{35}$Ca two neutron transfer reaction. The radioactive $^{37}$Ca nuclei, produced by the LISE spectrometer at GANIL, interacted with the protons of the liquid hydrogen target CRYPTA, to produce tritons $t$ that were detected in the MUST2 detector array, in coincidence with the heavy re… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2302.14382v1-abstract-full').style.display = 'inline'; document.getElementById('2302.14382v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2302.14382v1-abstract-full" style="display: none;"> The last proton bound calcium isotope $^{35}$Ca has been studied for the first time, using the $^{37}$Ca($p, t$)$^{35}$Ca two neutron transfer reaction. The radioactive $^{37}$Ca nuclei, produced by the LISE spectrometer at GANIL, interacted with the protons of the liquid hydrogen target CRYPTA, to produce tritons $t$ that were detected in the MUST2 detector array, in coincidence with the heavy residues Ca or Ar. The atomic mass of $^{35}$Ca and the energy of its first 3/2$^+$ state are reported. A large $N=16$ gap of 4.61(11) MeV is deduced from the mass measurement, which together with other measured properties, makes $^{36}$Ca a doubly-magic nucleus. The $N = 16$ shell gaps in $^{36}$Ca and $^{24}$O are of similar amplitude, at both edges of the valley of stability. This feature is discussed in terms of nuclear forces involved, within state-of-the-art shell model calculations. Even though the global agreement with data is quite convincing, the calculations underestimate the size of the $N = 16$ gap in 36Ca by 840(110) keV. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2302.14382v1-abstract-full').style.display = 'none'; document.getElementById('2302.14382v1-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 February, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2023. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2302.13856">arXiv:2302.13856</a> <span> [<a href="https://arxiv.org/pdf/2302.13856">pdf</a>, <a href="https://arxiv.org/ps/2302.13856">ps</a>, <a href="https://arxiv.org/format/2302.13856">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.107.L021601">10.1103/PhysRevC.107.L021601 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Experimental evidence of the effect of nuclear shells on fission dissipation and time </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Ramos%2C+D">D. Ramos</a>, <a href="/search/nucl-ex?searchtype=author&query=Caamano%2C+M">M. Caamano</a>, <a href="/search/nucl-ex?searchtype=author&query=Farget%2C+F">F. Farget</a>, <a href="/search/nucl-ex?searchtype=author&query=Rodriguez-Tajes%2C+C">C. Rodriguez-Tajes</a>, <a href="/search/nucl-ex?searchtype=author&query=Lemasson%2C+A">A. Lemasson</a>, <a href="/search/nucl-ex?searchtype=author&query=Schmitt%2C+C">C. Schmitt</a>, <a href="/search/nucl-ex?searchtype=author&query=Audouin%2C+L">L. Audouin</a>, <a href="/search/nucl-ex?searchtype=author&query=Benlliure%2C+J">J. Benlliure</a>, <a href="/search/nucl-ex?searchtype=author&query=Casarejos%2C+E">E. Casarejos</a>, <a href="/search/nucl-ex?searchtype=author&query=Clement%2C+E">E. Clement</a>, <a href="/search/nucl-ex?searchtype=author&query=Cortina%2C+D">D. Cortina</a>, <a href="/search/nucl-ex?searchtype=author&query=Delaune%2C+O">O. Delaune</a>, <a href="/search/nucl-ex?searchtype=author&query=Derkx%2C+X">X. Derkx</a>, <a href="/search/nucl-ex?searchtype=author&query=Dijon%2C+A">A. Dijon</a>, <a href="/search/nucl-ex?searchtype=author&query=Dore%2C+D">D. Dore</a>, <a href="/search/nucl-ex?searchtype=author&query=Fernandez-Dominguez%2C+B">B. Fernandez-Dominguez</a>, <a href="/search/nucl-ex?searchtype=author&query=de+France%2C+G">G. de France</a>, <a href="/search/nucl-ex?searchtype=author&query=Heinz%2C+A">A. Heinz</a>, <a href="/search/nucl-ex?searchtype=author&query=Jacquot%2C+B">B. Jacquot</a>, <a href="/search/nucl-ex?searchtype=author&query=Paradela%2C+C">C. Paradela</a>, <a href="/search/nucl-ex?searchtype=author&query=Rejmund%2C+M">M. Rejmund</a>, <a href="/search/nucl-ex?searchtype=author&query=Roger%2C+T">T. Roger</a>, <a href="/search/nucl-ex?searchtype=author&query=Salsac%2C+M+-">M. -D. Salsac</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="2302.13856v1-abstract-short" style="display: inline;"> Nuclear fission is still one of the most complex physical processes we can observe in nature due to the interplay of macroscopic and microscopic nuclear properties that decide the result. An example of this coupling is the presence of nuclear dissipation as an important ingredient that contributes to drive the dynamics and has a clear impact on the time of the process. However, different theoretic… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2302.13856v1-abstract-full').style.display = 'inline'; document.getElementById('2302.13856v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2302.13856v1-abstract-full" style="display: none;"> Nuclear fission is still one of the most complex physical processes we can observe in nature due to the interplay of macroscopic and microscopic nuclear properties that decide the result. An example of this coupling is the presence of nuclear dissipation as an important ingredient that contributes to drive the dynamics and has a clear impact on the time of the process. However, different theoretical interpretations, and scarce experimental data make it poorly understood. In this letter, we present the first experimental determination of the dissipation energy in fission as a function of the fragment split, for three different fissioning systems. The amount of dissipation was obtained through the measurement of the relative production of fragments with even and odd atomic numbers with respect to different initial fission energies. The results reveal a clear effect of particular nuclear shells on the dissipation and fission dynamics. In addition, the relative production of fragments with even and odd atomic numbers appears as a potential contributor to the long-standing problem of the time scale in fission. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2302.13856v1-abstract-full').style.display = 'none'; document.getElementById('2302.13856v1-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 February, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2023. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2212.06302">arXiv:2212.06302</a> <span> [<a href="https://arxiv.org/pdf/2212.06302">pdf</a>, <a href="https://arxiv.org/format/2212.06302">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 Astrophysical Phenomena">astro-ph.HE</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Solar and Stellar Astrophysics">astro-ph.SR</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/10.1038/s41467-023-40121-3">10.1038/s41467-023-40121-3 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Search for $^{22}$Na in novae supported by a novel method for measuring femtosecond nuclear lifetimes </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Foug%C3%A8res%2C+C">C. Foug猫res</a>, <a href="/search/nucl-ex?searchtype=author&query=Santos%2C+F+d+O">F. de Oliveira Santos</a>, <a href="/search/nucl-ex?searchtype=author&query=Jos%C3%A9%2C+J">J. Jos茅</a>, <a href="/search/nucl-ex?searchtype=author&query=Michelagnoli%2C+C">C. Michelagnoli</a>, <a href="/search/nucl-ex?searchtype=author&query=Cl%C3%A9ment%2C+E">E. Cl茅ment</a>, <a href="/search/nucl-ex?searchtype=author&query=Kim%2C+Y+H">Y. H. Kim</a>, <a href="/search/nucl-ex?searchtype=author&query=Lemasson%2C+A">A. Lemasson</a>, <a href="/search/nucl-ex?searchtype=author&query=Guimaraes%2C+V">V. Guimaraes</a>, <a href="/search/nucl-ex?searchtype=author&query=Barrientos%2C+D">D. Barrientos</a>, <a href="/search/nucl-ex?searchtype=author&query=Bemmerer%2C+D">D. Bemmerer</a>, <a href="/search/nucl-ex?searchtype=author&query=Benzoni%2C+G">G. Benzoni</a>, <a href="/search/nucl-ex?searchtype=author&query=Boston%2C+A+J">A. J. Boston</a>, <a href="/search/nucl-ex?searchtype=author&query=Bottger%2C+R">R. Bottger</a>, <a href="/search/nucl-ex?searchtype=author&query=Boulay%2C+F">F. Boulay</a>, <a href="/search/nucl-ex?searchtype=author&query=Bracco%2C+A">A. Bracco</a>, <a href="/search/nucl-ex?searchtype=author&query=Celikovic%2C+I">I. Celikovic</a>, <a href="/search/nucl-ex?searchtype=author&query=Cederwall%2C+B">B. Cederwall</a>, <a href="/search/nucl-ex?searchtype=author&query=Ciemala%2C+M">M. Ciemala</a>, <a href="/search/nucl-ex?searchtype=author&query=Delafosse%2C+C">C. Delafosse</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=Dudouet%2C+J">J. Dudouet</a>, <a href="/search/nucl-ex?searchtype=author&query=Eberth%2C+J">J. Eberth</a>, <a href="/search/nucl-ex?searchtype=author&query=Fulop%2C+Z">Z. Fulop</a>, <a href="/search/nucl-ex?searchtype=author&query=Gonzalez%2C+V">V. Gonzalez</a>, <a href="/search/nucl-ex?searchtype=author&query=Goupil%2C+J">J. Goupil</a> , et al. (36 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="2212.06302v1-abstract-short" style="display: inline;"> Classical novae are thermonuclear explosions in stellar binary systems, and important sources of $^{26}$Al and $^{22}$Na. While gamma rays from the decay of the former radioisotope have been observed throughout the Galaxy, $^{22}$Na remains untraceable. The half-life of $^{22}$Na (2.6 yr) would allow the observation of its 1.275 MeV gamma-ray line from a cosmic source. However, the prediction of s… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2212.06302v1-abstract-full').style.display = 'inline'; document.getElementById('2212.06302v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2212.06302v1-abstract-full" style="display: none;"> Classical novae are thermonuclear explosions in stellar binary systems, and important sources of $^{26}$Al and $^{22}$Na. While gamma rays from the decay of the former radioisotope have been observed throughout the Galaxy, $^{22}$Na remains untraceable. The half-life of $^{22}$Na (2.6 yr) would allow the observation of its 1.275 MeV gamma-ray line from a cosmic source. However, the prediction of such an observation requires good knowledge of the nuclear reactions involved in the production and destruction of this nucleus. The $^{22}$Na($p,纬$)$^{23}$Mg reaction remains the only source of large uncertainty about the amount of $^{22}$Na ejected. Its rate is dominated by a single resonance on the short-lived state at 7785.0(7) keV in $^{23}$Mg. In the present work, a combined analysis of particle-particle correlations and velocity-difference profiles is proposed to measure femtosecond nuclear lifetimes. The application of this novel method to the study of the $^{23}$Mg states, combining magnetic and highly-segmented tracking gamma-ray spectrometers, places strong limits on the amount of $^{22}$Na produced in novae, explains its non-observation to date in gamma rays (flux < 2.5x$10^{-4}$ ph/(cm$^2$s)), and constrains its detectability with future space-borne observatories. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2212.06302v1-abstract-full').style.display = 'none'; document.getElementById('2212.06302v1-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 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, 3 figures, 1 table</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Nature Communications 14, 2023 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2211.01879">arXiv:2211.01879</a> <span> [<a href="https://arxiv.org/pdf/2211.01879">pdf</a>, <a href="https://arxiv.org/format/2211.01879">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.106.044607">10.1103/PhysRevC.106.044607 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> $^{178}$Hg and asymmetric fission of neutron-deficient pre-actinides </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Jhingan%2C+A">A. Jhingan</a>, <a href="/search/nucl-ex?searchtype=author&query=Schmitt%2C+C">C. Schmitt</a>, <a href="/search/nucl-ex?searchtype=author&query=Lemasson%2C+A">A. Lemasson</a>, <a href="/search/nucl-ex?searchtype=author&query=Biswas%2C+S">S. Biswas</a>, <a href="/search/nucl-ex?searchtype=author&query=Kim%2C+Y+H">Y. H. Kim</a>, <a href="/search/nucl-ex?searchtype=author&query=Ramos%2C+D">D. Ramos</a>, <a href="/search/nucl-ex?searchtype=author&query=Andreyev%2C+A+N">A. N. Andreyev</a>, <a href="/search/nucl-ex?searchtype=author&query=Curien%2C+D">D. Curien</a>, <a href="/search/nucl-ex?searchtype=author&query=Ciemala%2C+M">M. Ciemala</a>, <a href="/search/nucl-ex?searchtype=author&query=Cl%C3%A9ment%2C+E">E. Cl茅ment</a>, <a href="/search/nucl-ex?searchtype=author&query=Dorvaux%2C+O">O. Dorvaux</a>, <a href="/search/nucl-ex?searchtype=author&query=De+Canditiis%2C+B">B. De Canditiis</a>, <a href="/search/nucl-ex?searchtype=author&query=Didierjean%2C+F">F. Didierjean</a>, <a href="/search/nucl-ex?searchtype=author&query=Duch%C3%AAne%2C+G">G. Duch锚ne</a>, <a href="/search/nucl-ex?searchtype=author&query=Dudouet%2C+J">J. Dudouet</a>, <a href="/search/nucl-ex?searchtype=author&query=Frankland%2C+J">J. Frankland</a>, <a href="/search/nucl-ex?searchtype=author&query=Fr%C3%A9mont%2C+G">G. Fr茅mont</a>, <a href="/search/nucl-ex?searchtype=author&query=Goupil%2C+J">J. Goupil</a>, <a href="/search/nucl-ex?searchtype=author&query=Jacquot%2C+B">B. Jacquot</a>, <a href="/search/nucl-ex?searchtype=author&query=Raison%2C+C">C. Raison</a>, <a href="/search/nucl-ex?searchtype=author&query=Ralet%2C+D">D. Ralet</a>, <a href="/search/nucl-ex?searchtype=author&query=Retailleau%2C+B+-">B. -M. Retailleau</a>, <a href="/search/nucl-ex?searchtype=author&query=Stuttg%C3%A9%2C+L">L. Stuttg茅</a>, <a href="/search/nucl-ex?searchtype=author&query=Tsekhanovich%2C+I">I. Tsekhanovich</a>, <a href="/search/nucl-ex?searchtype=author&query=Andreev%2C+A+V">A. V. Andreev</a> , et al. (5 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="2211.01879v1-abstract-short" style="display: inline;"> Fission at low excitation energy is an ideal playground to probe the impact of nuclear structure on nuclear dynamics. While the importance of structural effects in the nascent fragments is well-established in the (trans-)actinide region, the observation of asymmetric fission in several neutron-deficient pre-actinides can be explained by various mechanisms. To deepen our insight into that puzzle, a… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2211.01879v1-abstract-full').style.display = 'inline'; document.getElementById('2211.01879v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2211.01879v1-abstract-full" style="display: none;"> Fission at low excitation energy is an ideal playground to probe the impact of nuclear structure on nuclear dynamics. While the importance of structural effects in the nascent fragments is well-established in the (trans-)actinide region, the observation of asymmetric fission in several neutron-deficient pre-actinides can be explained by various mechanisms. To deepen our insight into that puzzle, an innovative approach based on inverse kinematics and an enhanced version of the VAMOS++ heavy-ion spectrometer was implemented at the GANIL facility, Caen. Fission of $^{178}$Hg was induced by fusion of $^{124}$Xe and $^{54}$Fe. The two fragments were detected in coincidence using VAMOS++ supplemented with a new SEcond Detection arm. For the first time in the pre-actinide region, access to the pre-neutron mass and total kinetic energy distributions, and the simultaneous isotopic identification of one the fission fragment, was achieved. The present work describes the experimental approach, and discusses the pre-neutron observables in the context of an extended asymmetric-fission island located south-west of $^{208}Pb. A comparison with different models is performed, demonstrating the importance of this "new" asymmetric-fission island for elaborating on driving effects in fission. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2211.01879v1-abstract-full').style.display = 'none'; document.getElementById('2211.01879v1-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 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">Journal ref:</span> Phys. Rev. C 106, 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/2203.10108">arXiv:2203.10108</a> <span> [<a href="https://arxiv.org/pdf/2203.10108">pdf</a>, <a href="https://arxiv.org/format/2203.10108">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.106.014320">10.1103/PhysRevC.106.014320 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Structure of $^{83}$As, $^{85}$As and $^{87}$As: from semi-magicity to $纬$-softness </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Rezynkina%2C+K">K. Rezynkina</a>, <a href="/search/nucl-ex?searchtype=author&query=Dao%2C+D+D">D. D. Dao</a>, <a href="/search/nucl-ex?searchtype=author&query=Duchene%2C+G">G. Duchene</a>, <a href="/search/nucl-ex?searchtype=author&query=Dudouet%2C+J">J. Dudouet</a>, <a href="/search/nucl-ex?searchtype=author&query=Nowacki%2C+F">F. Nowacki</a>, <a href="/search/nucl-ex?searchtype=author&query=Clement%2C+E">E. Clement</a>, <a href="/search/nucl-ex?searchtype=author&query=Lemasson%2C+A">A. Lemasson</a>, <a href="/search/nucl-ex?searchtype=author&query=Andreoiu%2C+C">C. Andreoiu</a>, <a href="/search/nucl-ex?searchtype=author&query=Astier%2C+A">A. Astier</a>, <a href="/search/nucl-ex?searchtype=author&query=de+Angelis%2C+G">G. de Angelis</a>, <a href="/search/nucl-ex?searchtype=author&query=de+France%2C+G">G. de France</a>, <a href="/search/nucl-ex?searchtype=author&query=Delafosse%2C+C">C. Delafosse</a>, <a href="/search/nucl-ex?searchtype=author&query=Deloncle%2C+I">I. Deloncle</a>, <a href="/search/nucl-ex?searchtype=author&query=Didierjean%2C+F">F. Didierjean</a>, <a href="/search/nucl-ex?searchtype=author&query=Dombradi%2C+Z">Z. Dombradi</a>, <a href="/search/nucl-ex?searchtype=author&query=Ducoin%2C+C">C. Ducoin</a>, <a href="/search/nucl-ex?searchtype=author&query=Gadea%2C+A">A. Gadea</a>, <a href="/search/nucl-ex?searchtype=author&query=Gottardo%2C+A">A. Gottardo</a>, <a href="/search/nucl-ex?searchtype=author&query=Guinet%2C+D">D. Guinet</a>, <a href="/search/nucl-ex?searchtype=author&query=Jacquot%2C+B">B. Jacquot</a>, <a href="/search/nucl-ex?searchtype=author&query=Jones%2C+P">P. Jones</a>, <a href="/search/nucl-ex?searchtype=author&query=Konstantinopoulos%2C+T">T. Konstantinopoulos</a>, <a href="/search/nucl-ex?searchtype=author&query=Kuti%2C+I">I. Kuti</a>, <a href="/search/nucl-ex?searchtype=author&query=Korichi%2C+A">A. Korichi</a>, <a href="/search/nucl-ex?searchtype=author&query=Lenzi%2C+S+M">S. M. Lenzi</a> , et al. (19 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="2203.10108v1-abstract-short" style="display: inline;"> The structure of $^{83}$As, $^{85}$As and $^{87}$As have been studied in fusion-fission reaction $^{238}$U+$^9$Be. Fission fragments were identified in mass and atomic number using the VAMOS++ spectrometer and the coincident $纬$-rays were detected in the $纬$-ray tracking array AGATA. New transitions in $^{83}$As and $^{85}$As are reported and placed in the level schemes. A level scheme of the exci… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2203.10108v1-abstract-full').style.display = 'inline'; document.getElementById('2203.10108v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2203.10108v1-abstract-full" style="display: none;"> The structure of $^{83}$As, $^{85}$As and $^{87}$As have been studied in fusion-fission reaction $^{238}$U+$^9$Be. Fission fragments were identified in mass and atomic number using the VAMOS++ spectrometer and the coincident $纬$-rays were detected in the $纬$-ray tracking array AGATA. New transitions in $^{83}$As and $^{85}$As are reported and placed in the level schemes. A level scheme of the excited states in $^{87}$As is proposed for the first time. The data are interpreted in frame of Large-Scale Shell-Model calculations, SU3 symmetries and Beyond Mean-Field frameworks. A spherical regime at magic number $N$=50 is predicted and the location of the proton $g_{9/2}$ orbital is proposed for the first time. Development of collectivity in a prolate deformed, $纬$-soft regime in the open shell cases $^{85}$As and $^{87}$As, most neutron-rich isotopes beyond $N$=50, is concluded. Data and theoretical calculations give confidence to a relatively high extrapolated excitation energy about 4 MeV of the $9/2^+$ state in $^{79}$Cu, one proton above $^{78}$Ni. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2203.10108v1-abstract-full').style.display = 'none'; document.getElementById('2203.10108v1-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 March, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2022. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2201.01513">arXiv:2201.01513</a> <span> [<a href="https://arxiv.org/pdf/2201.01513">pdf</a>, <a href="https://arxiv.org/format/2201.01513">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/PhysRevLett.129.122501">10.1103/PhysRevLett.129.122501 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> The structure of $^{36}$Ca under the Coulomb magnifying glass </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Lalanne%2C+L">L. Lalanne</a>, <a href="/search/nucl-ex?searchtype=author&query=Sorlin%2C+O">O. Sorlin</a>, <a href="/search/nucl-ex?searchtype=author&query=Poves%2C+A">A. Poves</a>, <a href="/search/nucl-ex?searchtype=author&query=Assi%C3%A9%2C+M">M. Assi茅</a>, <a href="/search/nucl-ex?searchtype=author&query=Hammache%2C+F">F. Hammache</a>, <a href="/search/nucl-ex?searchtype=author&query=Koyama%2C+S">S. Koyama</a>, <a href="/search/nucl-ex?searchtype=author&query=Flavigny%2C+F">F. Flavigny</a>, <a href="/search/nucl-ex?searchtype=author&query=Girard-Alcindor%2C+V">V. Girard-Alcindor</a>, <a href="/search/nucl-ex?searchtype=author&query=Lemasson%2C+A">A. Lemasson</a>, <a href="/search/nucl-ex?searchtype=author&query=Matta%2C+A">A. Matta</a>, <a href="/search/nucl-ex?searchtype=author&query=Roger%2C+T">T. Roger</a>, <a href="/search/nucl-ex?searchtype=author&query=Beaumel%2C+D">D. Beaumel</a>, <a href="/search/nucl-ex?searchtype=author&query=Blumenfeld%2C+Y">Y Blumenfeld</a>, <a href="/search/nucl-ex?searchtype=author&query=Brown%2C+B+A">B. A. Brown</a>, <a href="/search/nucl-ex?searchtype=author&query=Santos%2C+F+D+O">F. De Oliveira Santos</a>, <a href="/search/nucl-ex?searchtype=author&query=Delaunay%2C+F">F. Delaunay</a>, <a href="/search/nucl-ex?searchtype=author&query=de+S%C3%A9r%C3%A9ville%2C+N">N. de S茅r茅ville</a>, <a href="/search/nucl-ex?searchtype=author&query=Franchoo%2C+S">S. Franchoo</a>, <a href="/search/nucl-ex?searchtype=author&query=Gibelin%2C+J">J. Gibelin</a>, <a href="/search/nucl-ex?searchtype=author&query=Guillot%2C+J">J. Guillot</a>, <a href="/search/nucl-ex?searchtype=author&query=Kamalou%2C+O">O. Kamalou</a>, <a href="/search/nucl-ex?searchtype=author&query=Kitamura%2C+N">N. Kitamura</a>, <a href="/search/nucl-ex?searchtype=author&query=Lapoux%2C+V">V. Lapoux</a>, <a href="/search/nucl-ex?searchtype=author&query=Mauss%2C+B">B. Mauss</a>, <a href="/search/nucl-ex?searchtype=author&query=Morfouace%2C+P">P. Morfouace</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="2201.01513v2-abstract-short" style="display: inline;"> Detailed spectroscopy of the neutron-deficient nucleus $^{36}$Ca was obtained up to 9 MeV using the $^{37}$Ca($p$,$d$)$^{36}$Ca and the $^{38}$Ca($p$,$t$)$^{36}$Ca transfer reactions. The radioactive nuclei, produced by the LISE spectrometer at GANIL, interacted with the protons of the liquid Hydrogen target CRYPTA, to produce light ejectiles (the deuteron $d$ or triton $t$) that were detected in… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2201.01513v2-abstract-full').style.display = 'inline'; document.getElementById('2201.01513v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2201.01513v2-abstract-full" style="display: none;"> Detailed spectroscopy of the neutron-deficient nucleus $^{36}$Ca was obtained up to 9 MeV using the $^{37}$Ca($p$,$d$)$^{36}$Ca and the $^{38}$Ca($p$,$t$)$^{36}$Ca transfer reactions. The radioactive nuclei, produced by the LISE spectrometer at GANIL, interacted with the protons of the liquid Hydrogen target CRYPTA, to produce light ejectiles (the deuteron $d$ or triton $t$) that were detected in the MUST2 detector array, in coincidence with the heavy residues %identified by a zero degree detection system. %States have been measured up to 9 MeV. Our main findings are: i) a similar shift in energy for the 1$^+_1$ and 2$^+_1$ states by about -250 keV, as compared to the mirror nucleus $^{36}$S, ii) the discovery of an intruder 0$^+_2$ state at 2.83(13) MeV, which appears below the first 2$^+$ state, in contradiction with the situation in $^{36}$S, and iii) a tentative 0$^+_3$ state at 4.83(17) MeV, proposed to exhibit a bubble structure with two neutron vacancies in the 2s$_{1/2}$ orbit. The inversion between the 0$^+_2$ and 2$^+_1$ states is due to the large mirror energy difference (MED) of -516(130) keV for the former. This feature is reproduced by Shell Model (SM) calculations, using the $sd$-$pf$ valence space, predicting an almost pure intruder nature for the 0$^+_2$ state, with two protons (neutrons) being excited across the $Z$=20 magic closure in $^{36}$Ca ($^{36}$S). This mirror system has the largest MEDs ever observed, if one excludes the few cases induced by the effect of the continuum. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2201.01513v2-abstract-full').style.display = 'none'; document.getElementById('2201.01513v2-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 August, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 5 January, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 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">Paper of 5 pages, 3 figures. Contains also a supplementary material of 3 pages and 4 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/2111.14412">arXiv:2111.14412</a> <span> [<a href="https://arxiv.org/pdf/2111.14412">pdf</a>, <a href="https://arxiv.org/format/2111.14412">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> <p class="title is-5 mathjax"> Narrow resonances in the continuum of the unbound nucleus $^{15}$F </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Girard-Alcindor%2C+V">V. Girard-Alcindor</a>, <a href="/search/nucl-ex?searchtype=author&query=Mercenne%2C+A">A. Mercenne</a>, <a href="/search/nucl-ex?searchtype=author&query=Stefan%2C+I">I. Stefan</a>, <a href="/search/nucl-ex?searchtype=author&query=Santos%2C+F+d+O">F. de Oliveira Santos</a>, <a href="/search/nucl-ex?searchtype=author&query=Michel%2C+N">N. Michel</a>, <a href="/search/nucl-ex?searchtype=author&query=P%C5%82oszajczak%2C+M">M. P艂oszajczak</a>, <a href="/search/nucl-ex?searchtype=author&query=Assi%C3%A9%2C+M">M. Assi茅</a>, <a href="/search/nucl-ex?searchtype=author&query=Lemasson%2C+A">A. Lemasson</a>, <a href="/search/nucl-ex?searchtype=author&query=Cl%C3%A9ment%2C+E">E. Cl茅ment</a>, <a href="/search/nucl-ex?searchtype=author&query=Flavigny%2C+F">F. Flavigny</a>, <a href="/search/nucl-ex?searchtype=author&query=Matta%2C+A">A. Matta</a>, <a href="/search/nucl-ex?searchtype=author&query=Ramos%2C+D">D. Ramos</a>, <a href="/search/nucl-ex?searchtype=author&query=Rejmund%2C+M">M. Rejmund</a>, <a href="/search/nucl-ex?searchtype=author&query=Dudouet%2C+J">J. Dudouet</a>, <a href="/search/nucl-ex?searchtype=author&query=Ackermann%2C+D">D. Ackermann</a>, <a href="/search/nucl-ex?searchtype=author&query=Adsley%2C+P">P. Adsley</a>, <a href="/search/nucl-ex?searchtype=author&query=Assun%C3%A7%C3%A3o%2C+M">M. Assun莽茫o</a>, <a href="/search/nucl-ex?searchtype=author&query=Bastin%2C+B">B. Bastin</a>, <a href="/search/nucl-ex?searchtype=author&query=Beaumel%2C+D">D. Beaumel</a>, <a href="/search/nucl-ex?searchtype=author&query=Benzoni%2C+G">G. Benzoni</a>, <a href="/search/nucl-ex?searchtype=author&query=Borcea%2C+R">R. Borcea</a>, <a href="/search/nucl-ex?searchtype=author&query=Boston%2C+A+J">A. J. Boston</a>, <a href="/search/nucl-ex?searchtype=author&query=C%C3%A1ceres%2C+L">L. C谩ceres</a>, <a href="/search/nucl-ex?searchtype=author&query=Cederwall%2C+B">B. Cederwall</a>, <a href="/search/nucl-ex?searchtype=author&query=Celikovic%2C+I">I. Celikovic</a> , et al. (78 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="2111.14412v1-abstract-short" style="display: inline;"> The structure of the unbound $^{15}$F nucleus is investigated using the inverse kinematics resonant scattering of a radioactive $^{14}$O beam impinging on a CH$_2$ target. The analysis of $^{1}$H($^{14}$O,p)$^{14}$O and $^{1}$H($^{14}$O,2p)$^{13}$N reactions allowed the confirmation of the previously observed narrow $1/2^{-}$ resonance, near the two-proton decay threshold, and the identification o… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2111.14412v1-abstract-full').style.display = 'inline'; document.getElementById('2111.14412v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2111.14412v1-abstract-full" style="display: none;"> The structure of the unbound $^{15}$F nucleus is investigated using the inverse kinematics resonant scattering of a radioactive $^{14}$O beam impinging on a CH$_2$ target. The analysis of $^{1}$H($^{14}$O,p)$^{14}$O and $^{1}$H($^{14}$O,2p)$^{13}$N reactions allowed the confirmation of the previously observed narrow $1/2^{-}$ resonance, near the two-proton decay threshold, and the identification of two new narrow 5/2$^{-}$ and 3/2$^{-}$ resonances. The newly observed levels decay by 1p emission to the ground of $^{14}$O, and by sequential 2p emission to the ground state (g.s.) of $^{13}$N via the $1^-$ resonance of $^{14}$O. Gamow shell model (GSM) analysis of the experimental data suggests that the wave functions of the 5/2$^{-}$ and 3/2$^{-}$ resonances may be collectivized by the continuum coupling to nearby 2p- and 1p- decay channels. The observed excitation function $^{1}$H($^{14}$O,p)$^{14}$O and resonance spectrum in $^{15}$F are well reproduced in the unified framework of the GSM. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2111.14412v1-abstract-full').style.display = 'none'; document.getElementById('2111.14412v1-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 November, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2021. </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, 4 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/2110.02282">arXiv:2110.02282</a> <span> [<a href="https://arxiv.org/pdf/2110.02282">pdf</a>, <a href="https://arxiv.org/format/2110.02282">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/10.1140/epja/s10050-021-00565-x">10.1140/epja/s10050-021-00565-x <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> First beams at Neutrons For Science </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Ledoux%2C+X">X. Ledoux</a>, <a href="/search/nucl-ex?searchtype=author&query=Foy%2C+J+C">J. C. Foy</a>, <a href="/search/nucl-ex?searchtype=author&query=Ducret%2C+J+E">J. E. Ducret</a>, <a href="/search/nucl-ex?searchtype=author&query=Frelin%2C+A+M">A. M. Frelin</a>, <a href="/search/nucl-ex?searchtype=author&query=Ramos%2C+D">D. Ramos</a>, <a href="/search/nucl-ex?searchtype=author&query=Mrazek%2C+J">J. Mrazek</a>, <a href="/search/nucl-ex?searchtype=author&query=Simeckova%2C+E">E. Simeckova</a>, <a href="/search/nucl-ex?searchtype=author&query=Behal%2C+R">R. Behal</a>, <a href="/search/nucl-ex?searchtype=author&query=Caceres%2C+L">L. Caceres</a>, <a href="/search/nucl-ex?searchtype=author&query=Glagolev%2C+V">V. Glagolev</a>, <a href="/search/nucl-ex?searchtype=author&query=Jacquot%2C+B">B. Jacquot</a>, <a href="/search/nucl-ex?searchtype=author&query=Lemasson%2C+A">A. Lemasson</a>, <a href="/search/nucl-ex?searchtype=author&query=Pancin%2C+J">J. Pancin</a>, <a href="/search/nucl-ex?searchtype=author&query=Piot%2C+1+J">1 J. Piot</a>, <a href="/search/nucl-ex?searchtype=author&query=Stodel%2C+C">C. Stodel</a>, <a href="/search/nucl-ex?searchtype=author&query=Vandebrouck%2C+M">M. Vandebrouck</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="2110.02282v1-abstract-short" style="display: inline;"> The neutrons for science facility (NFS), the first operational experimental area of the new GANIL/SPIRAL-2 facility, received its first beams in December 2019. Proton-induced reaction cross-sections as well as neutron beam characteristics were measured during the first commissioning phases. The first results, showing the features of the facility, are presented here and compared with previously pub… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2110.02282v1-abstract-full').style.display = 'inline'; document.getElementById('2110.02282v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2110.02282v1-abstract-full" style="display: none;"> The neutrons for science facility (NFS), the first operational experimental area of the new GANIL/SPIRAL-2 facility, received its first beams in December 2019. Proton-induced reaction cross-sections as well as neutron beam characteristics were measured during the first commissioning phases. The first results, showing the features of the facility, are presented here and compared with previously published data. The physics cases and the first accepted experiments are presented as well. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2110.02282v1-abstract-full').style.display = 'none'; document.getElementById('2110.02282v1-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 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> Eur. Phys. J. A (2021) 57: 257 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2109.06292">arXiv:2109.06292</a> <span> [<a href="https://arxiv.org/pdf/2109.06292">pdf</a>, <a href="https://arxiv.org/ps/2109.06292">ps</a>, <a href="https://arxiv.org/format/2109.06292">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> <p class="title is-5 mathjax"> Evidence for enhanced neutron-proton correlations from the level structure of the $N=Z+1$ nucleus $^{87}_{43}$Tc$^{\ }_{44}$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Liu%2C+X">X. Liu</a>, <a href="/search/nucl-ex?searchtype=author&query=Cederwall%2C+B">B. Cederwall</a>, <a href="/search/nucl-ex?searchtype=author&query=Qi%2C+C">C. Qi</a>, <a href="/search/nucl-ex?searchtype=author&query=Wyss%2C+R+A">R. A. Wyss</a>, <a href="/search/nucl-ex?searchtype=author&query=Aktas%2C+%C3%96">脰. Aktas</a>, <a href="/search/nucl-ex?searchtype=author&query=Ertoprak%2C+A">A. Ertoprak</a>, <a href="/search/nucl-ex?searchtype=author&query=Zhang%2C+W">W. Zhang</a>, <a href="/search/nucl-ex?searchtype=author&query=Cl%C3%A9ment%2C+E">E. Cl茅ment</a>, <a href="/search/nucl-ex?searchtype=author&query=de+France%2C+G">G. de France</a>, <a href="/search/nucl-ex?searchtype=author&query=Ralet%2C+D">D. Ralet</a>, <a href="/search/nucl-ex?searchtype=author&query=Gadea%2C+A">A. Gadea</a>, <a href="/search/nucl-ex?searchtype=author&query=Goasduff%2C+A">A. Goasduff</a>, <a href="/search/nucl-ex?searchtype=author&query=Jaworski%2C+G">G. Jaworski</a>, <a href="/search/nucl-ex?searchtype=author&query=Kuti%2C+I">I. Kuti</a>, <a href="/search/nucl-ex?searchtype=author&query=Nyak%C3%B3%2C+B+M">B. M. Nyak贸</a>, <a href="/search/nucl-ex?searchtype=author&query=Nyberg%2C+J">J. Nyberg</a>, <a href="/search/nucl-ex?searchtype=author&query=Palacz%2C+M">M. Palacz</a>, <a href="/search/nucl-ex?searchtype=author&query=Wadsworth%2C+R">R. Wadsworth</a>, <a href="/search/nucl-ex?searchtype=author&query=Valiente-Dob%C3%B3n%2C+J+J">J. J. Valiente-Dob贸n</a>, <a href="/search/nucl-ex?searchtype=author&query=Al-Azri%2C+H">H. Al-Azri</a>, <a href="/search/nucl-ex?searchtype=author&query=Nyberg%2C+A+A">A. Ata莽 Nyberg</a>, <a href="/search/nucl-ex?searchtype=author&query=B%C3%A4ck%2C+T">T. B盲ck</a>, <a href="/search/nucl-ex?searchtype=author&query=de+Angelis%2C+G">G. de Angelis</a>, <a href="/search/nucl-ex?searchtype=author&query=Doncel%2C+M">M. Doncel</a>, <a href="/search/nucl-ex?searchtype=author&query=Dudouet%2C+J">J. Dudouet</a> , et al. (47 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="2109.06292v1-abstract-short" style="display: inline;"> The low-lying excited states in the neutron-deficient $N=Z+1$ nucleus $^{87}_{43}$Tc$^{\ }_{44}$ have been studied via the fusion-evaporation reaction $^{54}$Fe($^{36}$Ar, $2n1p$)$^{87}$Tc at the Grand Acc茅l茅rateur National d'Ions Lourds (GANIL), France. The AGATA spectrometer was used in conjunction with the auxiliary NEDA, Neutron Wall, and DIAMANT detector arrays to measure coincident prompt… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2109.06292v1-abstract-full').style.display = 'inline'; document.getElementById('2109.06292v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2109.06292v1-abstract-full" style="display: none;"> The low-lying excited states in the neutron-deficient $N=Z+1$ nucleus $^{87}_{43}$Tc$^{\ }_{44}$ have been studied via the fusion-evaporation reaction $^{54}$Fe($^{36}$Ar, $2n1p$)$^{87}$Tc at the Grand Acc茅l茅rateur National d'Ions Lourds (GANIL), France. The AGATA spectrometer was used in conjunction with the auxiliary NEDA, Neutron Wall, and DIAMANT detector arrays to measure coincident prompt $纬$-rays, neutrons, and charged particles emitted in the reaction. A level scheme of $^{87}$Tc from the (9/2$^{+}_{g.s.}$) state to the (33/2$^{+}_{1}$) state was established based on 6 mutually coincident $纬$-ray transitions. The constructed level structure exhibits a rotational behavior with a sharp backbending at $\hbar蠅\approx 0.50$ MeV. A decrease in alignment frequency and increase in alignment sharpness in the odd-mass isotonic chains around $N=44$ is proposed as an effect of the enhanced isoscalar neutron-proton interactions in odd-mass nuclei when approaching the $N=Z$ line. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2109.06292v1-abstract-full').style.display = 'none'; document.getElementById('2109.06292v1-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 September, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2021. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2107.04317">arXiv:2107.04317</a> <span> [<a href="https://arxiv.org/pdf/2107.04317">pdf</a>, <a href="https://arxiv.org/format/2107.04317">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.103.055809">10.1103/PhysRevC.103.055809 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Evaluation of the $^{35}$K($p$,$纬$)$^{36}$Ca reaction rate using the $^{37}$Ca($p$,$d$)$^{36}$Ca transfer reaction </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Lalanne%2C+L">L. Lalanne</a>, <a href="/search/nucl-ex?searchtype=author&query=Sorlin%2C+O">O. Sorlin</a>, <a href="/search/nucl-ex?searchtype=author&query=Assi%C3%A9%2C+M">M. Assi茅</a>, <a href="/search/nucl-ex?searchtype=author&query=Hammache%2C+F">F. Hammache</a>, <a href="/search/nucl-ex?searchtype=author&query=de+S%C3%A9r%C3%A9ville%2C+N">N. de S茅r茅ville</a>, <a href="/search/nucl-ex?searchtype=author&query=Koyama%2C+S">S. Koyama</a>, <a href="/search/nucl-ex?searchtype=author&query=Suzuki%2C+D">D. Suzuki</a>, <a href="/search/nucl-ex?searchtype=author&query=Flavigny%2C+F">F. Flavigny</a>, <a href="/search/nucl-ex?searchtype=author&query=Beaumel%2C+D">D. Beaumel</a>, <a href="/search/nucl-ex?searchtype=author&query=Blumenfeld%2C+Y">Y Blumenfeld</a>, <a href="/search/nucl-ex?searchtype=author&query=Brown%2C+B+A">B. A. Brown</a>, <a href="/search/nucl-ex?searchtype=author&query=Santos%2C+F+D+O">F. De Oliveira Santos</a>, <a href="/search/nucl-ex?searchtype=author&query=Delaunay%2C+F">F. Delaunay</a>, <a href="/search/nucl-ex?searchtype=author&query=Franchoo%2C+S">S. Franchoo</a>, <a href="/search/nucl-ex?searchtype=author&query=Gibelin%2C+J">J. Gibelin</a>, <a href="/search/nucl-ex?searchtype=author&query=Girard-Alcindor%2C+V">V. Girard-Alcindor</a>, <a href="/search/nucl-ex?searchtype=author&query=Guillot%2C+J">J. Guillot</a>, <a href="/search/nucl-ex?searchtype=author&query=Kamalou%2C+O">O. Kamalou</a>, <a href="/search/nucl-ex?searchtype=author&query=Kitamura%2C+N">N. Kitamura</a>, <a href="/search/nucl-ex?searchtype=author&query=Lapoux%2C+V">V. Lapoux</a>, <a href="/search/nucl-ex?searchtype=author&query=Lemasson%2C+A">A. Lemasson</a>, <a href="/search/nucl-ex?searchtype=author&query=Matta%2C+A">A. Matta</a>, <a href="/search/nucl-ex?searchtype=author&query=Mauss%2C+B">B. Mauss</a>, <a href="/search/nucl-ex?searchtype=author&query=Morfouace%2C+P">P. Morfouace</a>, <a href="/search/nucl-ex?searchtype=author&query=Niikura%2C+M">M. Niikura</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="2107.04317v1-abstract-short" style="display: inline;"> A recent sensitivity study has shown that the $^{35}$K$(p,纬)^{36}$Ca reaction is one of the ten $(p,纬)$ reaction rates that could significantly impact the shape of the calculated X-ray burst light curve. In this work, we propose to reinvestigate the $^{35}$K$(p,纬)^{36}$Ca reaction rate, as well as related uncertainties, by determining the energies and decay branching ratios of $^{36}$Ca levels, wi… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2107.04317v1-abstract-full').style.display = 'inline'; document.getElementById('2107.04317v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2107.04317v1-abstract-full" style="display: none;"> A recent sensitivity study has shown that the $^{35}$K$(p,纬)^{36}$Ca reaction is one of the ten $(p,纬)$ reaction rates that could significantly impact the shape of the calculated X-ray burst light curve. In this work, we propose to reinvestigate the $^{35}$K$(p,纬)^{36}$Ca reaction rate, as well as related uncertainties, by determining the energies and decay branching ratios of $^{36}$Ca levels, within the Gamow window, in the 0.5 to 2 GK X-ray burst temperature range. These properties were studied using the one neutron pick-up transfer reaction $^{37}$Ca$(p,d)^{36}$Ca in inverse kinematics using a radioactive beam of $^{37}$Ca at 48 MeV nucleon$^{-1}$. The experiment performed at GANIL, used the liquid Hydrogen target CRYPTA, the MUST2 detector array for the detection of the light charged particles and a zero degree detection system for the outgoing heavy ions. The atomic mass of $^{36}$Ca is confirmed and new resonances have been proposed together with their proton decay branching ratios. This spectroscopic information, used in combination with recent theoretical predictions for the $纬$-width, were used to calculate the $^{35}$K$(p,纬)^{36}$Ca reaction rate. The recommended rate of the present work was obtain within a uncertainty factor of 2 at 1 sigma. This is consistent, with the previous estimate in the X-ray burst temperature range. A large increase of the reaction rate was found at higher temperatures due to two newly discovered resonances. The $^{35}$K$(p,纬)^{36}$Ca thermonuclear reaction rate is now well constrained by the present work in a broad range of temperatures. Our results show that the $^{35}$K$(p,纬)^{36}$Ca reaction does not affect the shape of the X-ray burst light curve, and that it can be removed from the list of the few influential proton radiative captures reactions having a strong impact on the light curve. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2107.04317v1-abstract-full').style.display = 'none'; document.getElementById('2107.04317v1-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 July, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2021. </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">Published 13 May 2021 in PRC</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. C 103, 055809 , 2021 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2105.06279">arXiv:2105.06279</a> <span> [<a href="https://arxiv.org/pdf/2105.06279">pdf</a>, <a href="https://arxiv.org/format/2105.06279">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.2021.165830">10.1016/j.nima.2021.165830 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> HeCTOr: the $^3$He Cryogenic Target of Orsay for direct nuclear reactions with radioactive beams </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Galtarossa%2C+F">F. Galtarossa</a>, <a href="/search/nucl-ex?searchtype=author&query=Pierens%2C+M">M. Pierens</a>, <a href="/search/nucl-ex?searchtype=author&query=Assi%C3%A9%2C+M">M. Assi茅</a>, <a href="/search/nucl-ex?searchtype=author&query=Delpech%2C+V">V. Delpech</a>, <a href="/search/nucl-ex?searchtype=author&query=Galet%2C+F">F. Galet</a>, <a href="/search/nucl-ex?searchtype=author&query=Saugnac%2C+H">H. Saugnac</a>, <a href="/search/nucl-ex?searchtype=author&query=Brugnara%2C+D">D. Brugnara</a>, <a href="/search/nucl-ex?searchtype=author&query=Ramos%2C+D">D. Ramos</a>, <a href="/search/nucl-ex?searchtype=author&query=Beaumel%2C+D">D. Beaumel</a>, <a href="/search/nucl-ex?searchtype=author&query=Blache%2C+P">P. Blache</a>, <a href="/search/nucl-ex?searchtype=author&query=Chabot%2C+M">M. Chabot</a>, <a href="/search/nucl-ex?searchtype=author&query=Chatelet%2C+F">F. Chatelet</a>, <a href="/search/nucl-ex?searchtype=author&query=Cl%C3%A9ment%2C+E">E. Cl茅ment</a>, <a href="/search/nucl-ex?searchtype=author&query=Flavigny%2C+F">F. Flavigny</a>, <a href="/search/nucl-ex?searchtype=author&query=Giret%2C+A">A. Giret</a>, <a href="/search/nucl-ex?searchtype=author&query=Gottardo%2C+A">A. Gottardo</a>, <a href="/search/nucl-ex?searchtype=author&query=Goupil%2C+J">J. Goupil</a>, <a href="/search/nucl-ex?searchtype=author&query=Lemasson%2C+A">A. Lemasson</a>, <a href="/search/nucl-ex?searchtype=author&query=Matta%2C+A">A. Matta</a>, <a href="/search/nucl-ex?searchtype=author&query=M%C3%A9nager%2C+L">L. M茅nager</a>, <a href="/search/nucl-ex?searchtype=author&query=Rindel%2C+E">E. Rindel</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="2105.06279v2-abstract-short" style="display: inline;"> Direct nuclear reactions with radioactive ion beams represent an extremely powerful tool to extend the study of fundamental nuclear properties far from stability. These measurements require pure and dense targets to cope with the low beam intensities. The $^3$He cryogenic target HeCTOr has been designed to perform direct nuclear reactions in inverse kinematics. The high density of $^3$He scatterin… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2105.06279v2-abstract-full').style.display = 'inline'; document.getElementById('2105.06279v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2105.06279v2-abstract-full" style="display: none;"> Direct nuclear reactions with radioactive ion beams represent an extremely powerful tool to extend the study of fundamental nuclear properties far from stability. These measurements require pure and dense targets to cope with the low beam intensities. The $^3$He cryogenic target HeCTOr has been designed to perform direct nuclear reactions in inverse kinematics. The high density of $^3$He scattering centers, of the order of 10$^{20}$ atoms/cm$^2$, makes it particularly suited for experiments where low-intensity radioactive beams are involved. The target was employed in a first in-beam experiment, where it was coupled to state-of-the-art gamma-ray and particle detectors. It showed excellent stability in gas temperature and density over time. Relevant experimental quantities, such as total target thickness, energy resolution and gamma-ray absorption, were determined through dedicated Geant4 simulations and found to be in good agreement with experimental data. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2105.06279v2-abstract-full').style.display = 'none'; document.getElementById('2105.06279v2-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 August, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 12 May, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2021. </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, 10 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/2104.10707">arXiv:2104.10707</a> <span> [<a href="https://arxiv.org/pdf/2104.10707">pdf</a>, <a href="https://arxiv.org/format/2104.10707">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.2021.165743">10.1016/j.nima.2021.165743 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> The MUGAST-AGATA-VAMOS campaign : set-up and performance </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Assi%C3%A9%2C+M">M. Assi茅</a>, <a href="/search/nucl-ex?searchtype=author&query=Cl%C3%A9ment%2C+E">E. Cl茅ment</a>, <a href="/search/nucl-ex?searchtype=author&query=Lemasson%2C+A">A. Lemasson</a>, <a href="/search/nucl-ex?searchtype=author&query=Ramos%2C+D">D. Ramos</a>, <a href="/search/nucl-ex?searchtype=author&query=Raggio%2C+A">A. Raggio</a>, <a href="/search/nucl-ex?searchtype=author&query=Zanon%2C+I">I. Zanon</a>, <a href="/search/nucl-ex?searchtype=author&query=Galtarossa%2C+F">F. Galtarossa</a>, <a href="/search/nucl-ex?searchtype=author&query=Lenain%2C+C">C. Lenain</a>, <a href="/search/nucl-ex?searchtype=author&query=Casal%2C+J">J. Casal</a>, <a href="/search/nucl-ex?searchtype=author&query=Flavigny%2C+F">F. Flavigny</a>, <a href="/search/nucl-ex?searchtype=author&query=Matta%2C+A">A. Matta</a>, <a href="/search/nucl-ex?searchtype=author&query=Mengoni%2C+D">D. Mengoni</a>, <a href="/search/nucl-ex?searchtype=author&query=Beaumel%2C+D">D. Beaumel</a>, <a href="/search/nucl-ex?searchtype=author&query=Blumenfeld%2C+Y">Y. Blumenfeld</a>, <a href="/search/nucl-ex?searchtype=author&query=Borcea%2C+R">R. Borcea</a>, <a href="/search/nucl-ex?searchtype=author&query=Brugnara%2C+D">D. Brugnara</a>, <a href="/search/nucl-ex?searchtype=author&query=Catford%2C+W">W. Catford</a>, <a href="/search/nucl-ex?searchtype=author&query=de+Oliveira%2C+F">F. de Oliveira</a>, <a href="/search/nucl-ex?searchtype=author&query=De+S%C3%A9r%C3%A9ville%2C+N">N. De S茅r茅ville</a>, <a href="/search/nucl-ex?searchtype=author&query=Didierjean%2C+F">F. Didierjean</a>, <a href="/search/nucl-ex?searchtype=author&query=Diget%2C+C+A">C. Aa. Diget</a>, <a href="/search/nucl-ex?searchtype=author&query=Dudouet%2C+J">J. Dudouet</a>, <a href="/search/nucl-ex?searchtype=author&query=Fernandez-Dominguez%2C+B">B. Fernandez-Dominguez</a>, <a href="/search/nucl-ex?searchtype=author&query=Foug%C3%A8res%2C+C">C. Foug猫res</a>, <a href="/search/nucl-ex?searchtype=author&query=Fr%C3%A9mont%2C+G">G. Fr茅mont</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="2104.10707v1-abstract-short" style="display: inline;"> The MUGAST-AGATA-VAMOS set-up at GANIL combines the MUGAST highly-segmented silicon array with the state-of-the-art AGATA array and the large acceptance VAMOS spectrometer. The mechanical and electronics integration copes with the constraints of maximum efficiency for each device, in particular 纬-ray transparency for the silicon array. This complete set-up offers a unique opportunity to perform ex… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2104.10707v1-abstract-full').style.display = 'inline'; document.getElementById('2104.10707v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2104.10707v1-abstract-full" style="display: none;"> The MUGAST-AGATA-VAMOS set-up at GANIL combines the MUGAST highly-segmented silicon array with the state-of-the-art AGATA array and the large acceptance VAMOS spectrometer. The mechanical and electronics integration copes with the constraints of maximum efficiency for each device, in particular 纬-ray transparency for the silicon array. This complete set-up offers a unique opportunity to perform exclusive measurements of direct reactions with the radioactive beams from the SPIRAL1 facility. The performance of the set-up is described through its commissioning and two examples of transfer reactions measured during the campaign. High accuracy spectroscopy of the nuclei of interest, including cross-sections and angular distributions, is achieved through the triple-coincidence measurement. In addition, the correction from Doppler effect of the 纬-ray energies is improved by the detection of the light particles and the use of two-body kinematics and a full rejection of the background contributions is obtained through the identification of heavy residues. Moreover, the system can handle high intensity beams (up to 108 pps). The particle identification based on the measurement of the time-of-flight between MUGAST and VAMOS and the reconstruction of the trajectories is investigated. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2104.10707v1-abstract-full').style.display = 'none'; document.getElementById('2104.10707v1-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 April, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2021. </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, 18 figures</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 1014 (2021) 165743 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2103.13769">arXiv:2103.13769</a> <span> [<a href="https://arxiv.org/pdf/2103.13769">pdf</a>, <a href="https://arxiv.org/format/2103.13769">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.104.L041301">10.1103/PhysRevC.104.L041301 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Complete set of bound negative-parity states in the neutron-rich 18N nucleus </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Ziliani%2C+S">S. Ziliani</a>, <a href="/search/nucl-ex?searchtype=author&query=Ciema%C5%82a%2C+M">M. Ciema艂a</a>, <a href="/search/nucl-ex?searchtype=author&query=Crespi%2C+F+C+L">F. C. L. Crespi</a>, <a href="/search/nucl-ex?searchtype=author&query=Leoni%2C+S">S. Leoni</a>, <a href="/search/nucl-ex?searchtype=author&query=Fornal%2C+B">B. Fornal</a>, <a href="/search/nucl-ex?searchtype=author&query=Suzuki%2C+T">T. Suzuki</a>, <a href="/search/nucl-ex?searchtype=author&query=Otsuka%2C+T">T. Otsuka</a>, <a href="/search/nucl-ex?searchtype=author&query=Maj%2C+A">A. Maj</a>, <a href="/search/nucl-ex?searchtype=author&query=Bednarczyk%2C+P">P. Bednarczyk</a>, <a href="/search/nucl-ex?searchtype=author&query=Benzoni%2C+G">G. Benzoni</a>, <a href="/search/nucl-ex?searchtype=author&query=Bracco%2C+A">A. Bracco</a>, <a href="/search/nucl-ex?searchtype=author&query=Boiano%2C+C">C. Boiano</a>, <a href="/search/nucl-ex?searchtype=author&query=Bottoni%2C+S">S. Bottoni</a>, <a href="/search/nucl-ex?searchtype=author&query=Brambilla%2C+S">S. Brambilla</a>, <a href="/search/nucl-ex?searchtype=author&query=Bast%2C+M">M. Bast</a>, <a href="/search/nucl-ex?searchtype=author&query=Beckers%2C+M">M. Beckers</a>, <a href="/search/nucl-ex?searchtype=author&query=Braunroth%2C+T">T. Braunroth</a>, <a href="/search/nucl-ex?searchtype=author&query=Camera%2C+F">F. Camera</a>, <a href="/search/nucl-ex?searchtype=author&query=Cieplicka-Orynczak%2C+N">N. Cieplicka-Orynczak</a>, <a href="/search/nucl-ex?searchtype=author&query=Cl%C3%A9ment%2C+E">E. Cl茅ment</a>, <a href="/search/nucl-ex?searchtype=author&query=Coelli%2C+S">S. Coelli</a>, <a href="/search/nucl-ex?searchtype=author&query=Dorvaux%2C+O">O. Dorvaux</a>, <a href="/search/nucl-ex?searchtype=author&query=Erturk%2C+S">S. Erturk</a>, <a href="/search/nucl-ex?searchtype=author&query=De+France%2C+G">G. De France</a>, <a href="/search/nucl-ex?searchtype=author&query=Fransen%2C+C">C. Fransen</a> , et al. (32 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="2103.13769v2-abstract-short" style="display: inline;"> High-resolution gamma-ray spectroscopy of 18N is performed with the Advanced GAmma Tracking Array AGATA, following deep-inelastic processes induced by an 18O beam on a 181Ta target. Six states are newly identified, which together with the three known excitations exhaust all negative-parity excited states expected in 18N below the neutron threshold. Spin and parities are proposed for all located st… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2103.13769v2-abstract-full').style.display = 'inline'; document.getElementById('2103.13769v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2103.13769v2-abstract-full" style="display: none;"> High-resolution gamma-ray spectroscopy of 18N is performed with the Advanced GAmma Tracking Array AGATA, following deep-inelastic processes induced by an 18O beam on a 181Ta target. Six states are newly identified, which together with the three known excitations exhaust all negative-parity excited states expected in 18N below the neutron threshold. Spin and parities are proposed for all located states on the basis of decay branchings and comparison with large-scale shell-model calculations performed in the p-sd space, with the YSOX interaction. Of particular interest is the location of the 0^-_1 and 1^-_2 excitations, which provide strong constrains for cross-shell p-sd matrix elements based on realistic interactions, and help to simultaneously reproduce the ground and first-excited states in 16N and 18N, for the first time. Understanding the 18N structure may also have significant impact on neutron-capture cross-section calculations in r-process modeling including light neutron-rich nuclei. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2103.13769v2-abstract-full').style.display = 'none'; document.getElementById('2103.13769v2-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 April, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 25 March, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. C 104, L041301 (2021) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2103.02358">arXiv:2103.02358</a> <span> [<a href="https://arxiv.org/pdf/2103.02358">pdf</a>, <a href="https://arxiv.org/ps/2103.02358">ps</a>, <a href="https://arxiv.org/format/2103.02358">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.103.034301">10.1103/PhysRevC.103.034301 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Pseudo spin doublet bands and Gallagher Moszkowski doublet bands in $^{100}$Y </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Wang%2C+E+H">E. H. Wang</a>, <a href="/search/nucl-ex?searchtype=author&query=Hamilton%2C+J+H">J. H. Hamilton</a>, <a href="/search/nucl-ex?searchtype=author&query=Ramayya%2C+A+V">A. V. Ramayya</a>, <a href="/search/nucl-ex?searchtype=author&query=Zachary%2C+C+J">C. J. Zachary</a>, <a href="/search/nucl-ex?searchtype=author&query=Lemasson%2C+A">A. Lemasson</a>, <a href="/search/nucl-ex?searchtype=author&query=Navin%2C+A">A. Navin</a>, <a href="/search/nucl-ex?searchtype=author&query=Rejmund%2C+M">M. Rejmund</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhattacharyya%2C+S">S. Bhattacharyya</a>, <a href="/search/nucl-ex?searchtype=author&query=Chen%2C+Q+B">Q. B. Chen</a>, <a href="/search/nucl-ex?searchtype=author&query=Zhang%2C+S+Q">S. Q. Zhang</a>, <a href="/search/nucl-ex?searchtype=author&query=Eldridge%2C+J+M">J. M. Eldridge</a>, <a href="/search/nucl-ex?searchtype=author&query=Hwang%2C+J+K">J. K. Hwang</a>, <a href="/search/nucl-ex?searchtype=author&query=Brewer%2C+N+T">N. T. Brewer</a>, <a href="/search/nucl-ex?searchtype=author&query=Luo%2C+Y+X">Y. X. Luo</a>, <a href="/search/nucl-ex?searchtype=author&query=Rasmussen%2C+J+O">J. O. Rasmussen</a>, <a href="/search/nucl-ex?searchtype=author&query=Zhu%2C+S+J">S. J. Zhu</a>, <a href="/search/nucl-ex?searchtype=author&query=Ter-Akopian%2C+G+M">G. M. Ter-Akopian</a>, <a href="/search/nucl-ex?searchtype=author&query=Oganessian%2C+Y+T">Yu. Ts. Oganessian</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=Cl%C3%A9ment%2C+E">E. Cl茅ment</a>, <a href="/search/nucl-ex?searchtype=author&query=Delaune%2C+O">O. Delaune</a>, <a href="/search/nucl-ex?searchtype=author&query=Farget%2C+F">F. Farget</a>, <a href="/search/nucl-ex?searchtype=author&query=de+France%2C+G">G. de France</a>, <a href="/search/nucl-ex?searchtype=author&query=Jacquot%2C+B">B. Jacquot</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="2103.02358v1-abstract-short" style="display: inline;"> New transitions in neutron rich $^{100}$Y have been identified in a $^9$Be+$^{238}$U experiment with mass- and Z- gates to provide full fragment identification. These transitions and high spin levels of $^{100}$Y have been investigated by analyzing the high statistics $纬$-$纬$-$纬$ and $纬$-$纬$-$纬$-$纬$ coincidence data from the spontaneous fission of $^{252}$Cf at the Gammasphere detector array. Two… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2103.02358v1-abstract-full').style.display = 'inline'; document.getElementById('2103.02358v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2103.02358v1-abstract-full" style="display: none;"> New transitions in neutron rich $^{100}$Y have been identified in a $^9$Be+$^{238}$U experiment with mass- and Z- gates to provide full fragment identification. These transitions and high spin levels of $^{100}$Y have been investigated by analyzing the high statistics $纬$-$纬$-$纬$ and $纬$-$纬$-$纬$-$纬$ coincidence data from the spontaneous fission of $^{252}$Cf at the Gammasphere detector array. Two new bands, 14 new levels and 23 new transitions have been identified. The $K^蟺=4^+$ new band decaying to an 1s isomeric state is assigned to be the high-$K$ Gallagher-Moszkowski (GM) partner of the known $K^蟺=1^+$ band, with the $蟺5/2[522] \otimes 谓3/2[411]$ configuration. This 4$^+$ band is also proposed to be the pseudo spin partner of the new $K^蟺=5^+$ band with a 5$^{+}$ $蟺5/2[422] \otimes 谓5/2[413]$ configuration, to form a $蟺5/2[422] \otimes 谓[312$ $5/2,3/2]$ neutron pseudospin doublet. Constrained triaxial covariant density functional theory and quantal particle rotor model calculations have been applied to interpret the band structure and available electromagnetic transition probabilities and are found in good agreement with experimental values. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2103.02358v1-abstract-full').style.display = 'none'; document.getElementById('2103.02358v1-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, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. C 103, 034301 (2021) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2101.08711">arXiv:2101.08711</a> <span> [<a href="https://arxiv.org/pdf/2101.08711">pdf</a>, <a href="https://arxiv.org/format/2101.08711">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.104.034320">10.1103/PhysRevC.104.034320 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Lifetime Measurements in the Even-Even $^{102-108}$Cd Isotopes </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Siciliano%2C+M">M. Siciliano</a>, <a href="/search/nucl-ex?searchtype=author&query=Valiente-Dob%C3%B3n%2C+J+J">J. J. Valiente-Dob贸n</a>, <a href="/search/nucl-ex?searchtype=author&query=Goasduff%2C+A">A. Goasduff</a>, <a href="/search/nucl-ex?searchtype=author&query=Rodr%C3%ADguez%2C+T+R">T. R. Rodr铆guez</a>, <a href="/search/nucl-ex?searchtype=author&query=Bazzacco%2C+D">D. Bazzacco</a>, <a href="/search/nucl-ex?searchtype=author&query=Benzoni%2C+G">G. Benzoni</a>, <a href="/search/nucl-ex?searchtype=author&query=Braunroth%2C+T">T. Braunroth</a>, <a href="/search/nucl-ex?searchtype=author&query=Cieplicka-Ory%C5%84czak%2C+N">N. Cieplicka-Ory艅czak</a>, <a href="/search/nucl-ex?searchtype=author&query=Cl%C3%A9ment%2C+E">E. Cl茅ment</a>, <a href="/search/nucl-ex?searchtype=author&query=Crespi%2C+F+C+L">F. C. L. Crespi</a>, <a href="/search/nucl-ex?searchtype=author&query=de+France%2C+G">G. de France</a>, <a href="/search/nucl-ex?searchtype=author&query=Doncel%2C+M">M. Doncel</a>, <a href="/search/nucl-ex?searchtype=author&query=Ert%C3%BCrk%2C+S">S. Ert眉rk</a>, <a href="/search/nucl-ex?searchtype=author&query=Fransen%2C+C">C. Fransen</a>, <a href="/search/nucl-ex?searchtype=author&query=Gadea%2C+A">A. Gadea</a>, <a href="/search/nucl-ex?searchtype=author&query=Georgiev%2C+G">G. Georgiev</a>, <a href="/search/nucl-ex?searchtype=author&query=Goldkuhle%2C+A">A. Goldkuhle</a>, <a href="/search/nucl-ex?searchtype=author&query=Jakobsson%2C+U">U. Jakobsson</a>, <a href="/search/nucl-ex?searchtype=author&query=Jaworski%2C+G">G. Jaworski</a>, <a href="/search/nucl-ex?searchtype=author&query=John%2C+P+R">P. R. John</a>, <a href="/search/nucl-ex?searchtype=author&query=Kuti%2C+I">I. Kuti</a>, <a href="/search/nucl-ex?searchtype=author&query=Lemasson%2C+A">A. Lemasson</a>, <a href="/search/nucl-ex?searchtype=author&query=Li%2C+H">H. Li</a>, <a href="/search/nucl-ex?searchtype=author&query=Lopez-Martens%2C+A">A. Lopez-Martens</a>, <a href="/search/nucl-ex?searchtype=author&query=Marchi%2C+T">T. Marchi</a> , et al. (12 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="2101.08711v3-abstract-short" style="display: inline;"> The heaviest N=Z doubly-magic nucleus, $^{100}$Sn, and the neighboring nuclei offer unique opportunities to investigate the properties of nuclear interaction in extreme conditions. In particular, the Cd isotopes are expected to present features similar to those found in the Sn isotopic chain, since they have only two proton holes in the Z=50 shell. In this manuscript, the lifetime measurements of… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2101.08711v3-abstract-full').style.display = 'inline'; document.getElementById('2101.08711v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2101.08711v3-abstract-full" style="display: none;"> The heaviest N=Z doubly-magic nucleus, $^{100}$Sn, and the neighboring nuclei offer unique opportunities to investigate the properties of nuclear interaction in extreme conditions. In particular, the Cd isotopes are expected to present features similar to those found in the Sn isotopic chain, since they have only two proton holes in the Z=50 shell. In this manuscript, the lifetime measurements of low-lying states in the even-mass $^{102-108}$Cd is presented. Thanks to the powerful detection capabilities of AGATA array and VAMOS++ spectrometer, the unusual employment of multi-nucleon transfer reactions permitted to investigate the first 2$^+$ and 4$^+$ states in all these nuclei, together with various deformed bands in $^{106}$Cd. The results were interpreted in the context of new state-of-the-art beyond-mean-field calculations, using the symmetry-conserving configuration-mixing approach. Despite the similarities in the electromagnetic properties of the low-lying states, there is a fundamental structural difference between the ground-state bands in the Z=48 and Z=50 isotopes. The comparison between experimental and theoretical results revealed a rotational character of the Cd nuclei, which have prolate-deformed ground states with $尾_2 \approx 0.2$. At this deformation Z=48 becomes a closed-shell configuration, which is favored with respect to the spherical one. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2101.08711v3-abstract-full').style.display = 'none'; document.getElementById('2101.08711v3-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 September, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 21 January, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2021. </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">V1 : 14 pages, 12 figures. V2 : 16 pages, 11 figures. V3 : 16 pages, 11 figures (figure 11 corrected); triaxiality evaluated with "quadrupole sum rule". submitted to Phys.Rev.C</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. C 104, 034320 (2021) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2012.05180">arXiv:2012.05180</a> <span> [<a href="https://arxiv.org/pdf/2012.05180">pdf</a>, <a href="https://arxiv.org/format/2012.05180">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/s10050-021-00451-6">10.1140/epja/s10050-021-00451-6 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Accessing tens-to-hundreds femtoseconds nuclear state lifetimes with low-energy binary heavy-ion reactions </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Ciemala%2C+M">M. Ciemala</a>, <a href="/search/nucl-ex?searchtype=author&query=Ziliani%2C+S">S. Ziliani</a>, <a href="/search/nucl-ex?searchtype=author&query=Crespi%2C+F+C+L">F. C. L. Crespi</a>, <a href="/search/nucl-ex?searchtype=author&query=Leoni%2C+S">S. Leoni</a>, <a href="/search/nucl-ex?searchtype=author&query=Fornal%2C+B">B. Fornal</a>, <a href="/search/nucl-ex?searchtype=author&query=Maj%2C+A">A. Maj</a>, <a href="/search/nucl-ex?searchtype=author&query=Bednarczyk%2C+P">P. Bednarczyk</a>, <a href="/search/nucl-ex?searchtype=author&query=Benzoni%2C+G">G. Benzoni</a>, <a href="/search/nucl-ex?searchtype=author&query=Bracco%2C+A">A. Bracco</a>, <a href="/search/nucl-ex?searchtype=author&query=Boiano%2C+C">C. Boiano</a>, <a href="/search/nucl-ex?searchtype=author&query=Bottoni%2C+S">S. Bottoni</a>, <a href="/search/nucl-ex?searchtype=author&query=Brambilla%2C+S">S. Brambilla</a>, <a href="/search/nucl-ex?searchtype=author&query=Bast%2C+M">M. Bast</a>, <a href="/search/nucl-ex?searchtype=author&query=Beckers%2C+M">M. Beckers</a>, <a href="/search/nucl-ex?searchtype=author&query=Braunroth%2C+T">T. Braunroth</a>, <a href="/search/nucl-ex?searchtype=author&query=Camera%2C+F">F. Camera</a>, <a href="/search/nucl-ex?searchtype=author&query=Cieplicka-Orynczak%2C+N">N. Cieplicka-Orynczak</a>, <a href="/search/nucl-ex?searchtype=author&query=Clement%2C+E">E. Clement</a>, <a href="/search/nucl-ex?searchtype=author&query=Coelli%2C+S">S. Coelli</a>, <a href="/search/nucl-ex?searchtype=author&query=Dorvaux%2C+O">O. Dorvaux</a>, <a href="/search/nucl-ex?searchtype=author&query=Erturk%2C+S">S. Erturk</a>, <a href="/search/nucl-ex?searchtype=author&query=De+France%2C+G">G. De France</a>, <a href="/search/nucl-ex?searchtype=author&query=Fransen%2C+C">C. Fransen</a>, <a href="/search/nucl-ex?searchtype=author&query=Goldkuhle%2C+A">A. Goldkuhle</a>, <a href="/search/nucl-ex?searchtype=author&query=Grebosz%2C+J">J. Grebosz</a> , et al. (30 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="2012.05180v1-abstract-short" style="display: inline;"> A novel Monte Carlo technique has been developed to determine lifetimes of excited states in the tens-to-hundreds femtoseconds range. The method is applied to low-energy heavy-ion binary reactions populating nuclei with complex velocity distributions. Its relevance is demonstrated in connection with the $^{18}$O(7.0 MeV/u) + $^{181}$Ta experiment, performed at GANIL with the AGATA+VAMOS+PARIS setu… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2012.05180v1-abstract-full').style.display = 'inline'; document.getElementById('2012.05180v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2012.05180v1-abstract-full" style="display: none;"> A novel Monte Carlo technique has been developed to determine lifetimes of excited states in the tens-to-hundreds femtoseconds range. The method is applied to low-energy heavy-ion binary reactions populating nuclei with complex velocity distributions. Its relevance is demonstrated in connection with the $^{18}$O(7.0 MeV/u) + $^{181}$Ta experiment, performed at GANIL with the AGATA+VAMOS+PARIS setup, to study neutron-rich O, C, N, ... nuclei. Excited states in $^{17}$O and $^{19}$O, with known lifetimes, are used to validate the method over the $\sim$20-400 fs lifetime-sensitivity range. Emphasis is given to the unprecedented position resolution provided by $纬$-tracking arrays, which turns out to be essential for reaching the required accuracy in Doppler-shift correction, at the basis of the detailed analysis of $纬$-ray lineshape and resulting state lifetime determination. The technique is anticipated to be an important tool for lifetime investigations in exotic neutron-rich nuclei, produced with intense ISOL-type beams. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2012.05180v1-abstract-full').style.display = 'none'; document.getElementById('2012.05180v1-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, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2020. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2008.08297">arXiv:2008.08297</a> <span> [<a href="https://arxiv.org/pdf/2008.08297">pdf</a>, <a href="https://arxiv.org/format/2008.08297">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.102.024321">10.1103/PhysRevC.102.024321 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> The Structure of $^{33}$Si and the magicity of the N=20 gap at Z=14 </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Jongile%2C+S">S. Jongile</a>, <a href="/search/nucl-ex?searchtype=author&query=Lemasson%2C+A">A. Lemasson</a>, <a href="/search/nucl-ex?searchtype=author&query=Sorlin%2C+O">O. Sorlin</a>, <a href="/search/nucl-ex?searchtype=author&query=Wiedeking%2C+M">M. Wiedeking</a>, <a href="/search/nucl-ex?searchtype=author&query=Papka%2C+P">P. Papka</a>, <a href="/search/nucl-ex?searchtype=author&query=Bazin%2C+D">D. Bazin</a>, <a href="/search/nucl-ex?searchtype=author&query=Borcea%2C+C">C. Borcea</a>, <a href="/search/nucl-ex?searchtype=author&query=Borcea%2C+R">R. Borcea</a>, <a href="/search/nucl-ex?searchtype=author&query=Gade%2C+A">A. Gade</a>, <a href="/search/nucl-ex?searchtype=author&query=Iwasaki%2C+H">H. Iwasaki</a>, <a href="/search/nucl-ex?searchtype=author&query=Khan%2C+E">E. Khan</a>, <a href="/search/nucl-ex?searchtype=author&query=Lepailleur%2C+A">A. Lepailleur</a>, <a href="/search/nucl-ex?searchtype=author&query=Mutschler%2C+A">A. Mutschler</a>, <a href="/search/nucl-ex?searchtype=author&query=Nowacki%2C+F">F. Nowacki</a>, <a href="/search/nucl-ex?searchtype=author&query=Recchia%2C+F">F. Recchia</a>, <a href="/search/nucl-ex?searchtype=author&query=Roger%2C+T">T. Roger</a>, <a href="/search/nucl-ex?searchtype=author&query=Rotaru%2C+F">F. Rotaru</a>, <a href="/search/nucl-ex?searchtype=author&query=Stanoiu%2C+M">M. Stanoiu</a>, <a href="/search/nucl-ex?searchtype=author&query=Stroberg%2C+S+R">S. R. Stroberg</a>, <a href="/search/nucl-ex?searchtype=author&query=Tostevin%2C+J+A">J. A. Tostevin</a>, <a href="/search/nucl-ex?searchtype=author&query=Vandebrouck%2C+M">M. Vandebrouck</a>, <a href="/search/nucl-ex?searchtype=author&query=Weisshaar%2C+D">D. Weisshaar</a>, <a href="/search/nucl-ex?searchtype=author&query=Wimmer%2C+K">K. Wimmer</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="2008.08297v1-abstract-short" style="display: inline;"> The structure of $^{33}$Si was studied by a one-neutron knockout reaction from a $^{34}$Si beam at 98.5 MeV/u incident on a $^{9}$Be target. The prompt $纬$-rays following the de-excitation of $^{33}$Si were detected using the GRETINA $纬$-ray tracking array while the reaction residues were identified on an event-by-event basis in the focal plane of the S800 spectrometer at NSCL (National Supercondu… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2008.08297v1-abstract-full').style.display = 'inline'; document.getElementById('2008.08297v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2008.08297v1-abstract-full" style="display: none;"> The structure of $^{33}$Si was studied by a one-neutron knockout reaction from a $^{34}$Si beam at 98.5 MeV/u incident on a $^{9}$Be target. The prompt $纬$-rays following the de-excitation of $^{33}$Si were detected using the GRETINA $纬$-ray tracking array while the reaction residues were identified on an event-by-event basis in the focal plane of the S800 spectrometer at NSCL (National Superconducting Cyclotron Laboratory). The presently derived spectroscopic factor values, $C^2S$, for the 3/2$^+$ and 1/2$^+$ states, corresponding to a neutron removal from the $0d_{3/2}$ and $1s_{1/2}$ orbitals, agree with shell model calculations and point to a strong $N=20$ shell closure. Three states arising from the more bound $0d_{5/2}$ orbital are proposed, one of which is unbound by about 930 keV. The sensitivity of this experiment has also confirmed a weak population of 9/2$^-$ and 11/2$_{1,2}^-$ final states, which originate from a higher-order process. This mechanism may also have populated, to some fraction, the 3/2$^-$ and 7/2$^-$ negative-parity states, which hinders a determination of the $C^2S$ values for knockout from the normally unoccupied $1p_{3/2}$ and $0f_{7/2}$ orbits. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2008.08297v1-abstract-full').style.display = 'none'; document.getElementById('2008.08297v1-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 August, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. C 102 024321 (2020) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2007.10043">arXiv:2007.10043</a> <span> [<a href="https://arxiv.org/pdf/2007.10043">pdf</a>, <a href="https://arxiv.org/ps/2007.10043">ps</a>, <a href="https://arxiv.org/format/2007.10043">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.102.014326">10.1103/PhysRevC.102.014326 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Prompt-delayed $纬$-ray spectroscopy of neutron-rich $^{119,121}$In isotopes </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Biswas%2C+S">S. Biswas</a>, <a href="/search/nucl-ex?searchtype=author&query=Lemasson%2C+A">A. Lemasson</a>, <a href="/search/nucl-ex?searchtype=author&query=Rejmund%2C+M">M. Rejmund</a>, <a href="/search/nucl-ex?searchtype=author&query=Navin%2C+A">A. Navin</a>, <a href="/search/nucl-ex?searchtype=author&query=Kim%2C+Y+H">Y. H. Kim</a>, <a href="/search/nucl-ex?searchtype=author&query=Michelagnoli%2C+C">C. Michelagnoli</a>, <a href="/search/nucl-ex?searchtype=author&query=Stefan%2C+I">I. Stefan</a>, <a href="/search/nucl-ex?searchtype=author&query=Banik%2C+R">R. Banik</a>, <a href="/search/nucl-ex?searchtype=author&query=Bednarczyk%2C+P">P. Bednarczyk</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhattacharya%2C+S">Soumik Bhattacharya</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhattacharyya%2C+S">S. Bhattacharyya</a>, <a href="/search/nucl-ex?searchtype=author&query=Cl%C3%A9ment%2C+E">E. Cl茅ment</a>, <a href="/search/nucl-ex?searchtype=author&query=Crawford%2C+H+L">H. L. Crawford</a>, <a href="/search/nucl-ex?searchtype=author&query=de+France%2C+G">G. de France</a>, <a href="/search/nucl-ex?searchtype=author&query=Fallon%2C+P">P. Fallon</a>, <a href="/search/nucl-ex?searchtype=author&query=Fr%C3%A9mont%2C+G">G. Fr茅mont</a>, <a href="/search/nucl-ex?searchtype=author&query=Goupil%2C+J">J. Goupil</a>, <a href="/search/nucl-ex?searchtype=author&query=Jacquot%2C+B">B. Jacquot</a>, <a href="/search/nucl-ex?searchtype=author&query=Li%2C+H+J">H. J. Li</a>, <a href="/search/nucl-ex?searchtype=author&query=Ljungvall%2C+J">J. Ljungvall</a>, <a href="/search/nucl-ex?searchtype=author&query=Maj%2C+A">A. Maj</a>, <a href="/search/nucl-ex?searchtype=author&query=M%C3%A9nager%2C+L">L. M茅nager</a>, <a href="/search/nucl-ex?searchtype=author&query=Morel%2C+V">V. Morel</a>, <a href="/search/nucl-ex?searchtype=author&query=Palit%2C+R">R. Palit</a>, <a href="/search/nucl-ex?searchtype=author&query=P%C3%A9rez-Vidal%2C+R+M">R. M. P茅rez-Vidal</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="2007.10043v1-abstract-short" style="display: inline;"> The fusion and transfer induced fission reaction $^{9}$Be($^{238}$U,~f) with 6.2 MeV/u beam energy, using a unique setup consisting of AGATA, VAMOS++ and EXOGAM detectors, was used to populate through the fission process and study the neutron-rich $^{119,121}$In isotopes. This setup enabled the prompt-delayed $纬$-ray spectroscopy of isotopes in the time range of $100~\rm{ns} - 200~渭\rm{s}$. In the… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2007.10043v1-abstract-full').style.display = 'inline'; document.getElementById('2007.10043v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2007.10043v1-abstract-full" style="display: none;"> The fusion and transfer induced fission reaction $^{9}$Be($^{238}$U,~f) with 6.2 MeV/u beam energy, using a unique setup consisting of AGATA, VAMOS++ and EXOGAM detectors, was used to populate through the fission process and study the neutron-rich $^{119,121}$In isotopes. This setup enabled the prompt-delayed $纬$-ray spectroscopy of isotopes in the time range of $100~\rm{ns} - 200~渭\rm{s}$. In the odd-$A$ $^{119,121}$In isotopes, indications of a short half-life $19/2^{-}$ isomeric state, in addition to the previously known $25/2^{+}$ isomeric state, were observed from the present data. Further, new prompt transitions above the $25/2^{+}$ isomer in $^{121}$In were identified along with reevaluation of its half-life. The experimental data were compared with the theoretical results obtained in the framework of large-scale shell-model calculations in a restricted model space. The $\langle 蟺g_{9/2} 谓h_{11/2};I \arrowvert \hat{\mathcal{H}}\arrowvert 蟺g_{9/2} 谓h_{11/2};I\rangle$ two-body matrix elements of residual interaction were modified to explain the excitation energies and the $B(E2)$ transition probabilities in the neutron-rich In isotopes. The (i) decreasing trend of $E(29/2^{+}) - E(25/2^{+})$ in odd-In (with dominant configuration $蟺g_{9/2}^{-1}谓h_{11/2}^{-2}$ and maximum aligned spin of $29/2^{+}$) and (ii) increasing trend of $E(27/2^{+}) - E(23/2^{+})$ in odd-Sb (with dominant configuration $蟺g_{7/2}^{+1}谓h_{11/2}^{-2}$ and maximum aligned spin of $27/2^{+}$) with increasing neutron number could be understood as a consequence of hole-hole and particle-hole interactions, respectively. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2007.10043v1-abstract-full').style.display = 'none'; document.getElementById('2007.10043v1-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 July, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 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">Accepted for publication in Phys. Rev. C</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. C 102 014326 (2020) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2004.06346">arXiv:2004.06346</a> <span> [<a href="https://arxiv.org/pdf/2004.06346">pdf</a>, <a href="https://arxiv.org/format/2004.06346">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.101.034609">10.1103/PhysRevC.101.034609 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Scission configuration of $^{239}$U from yields and kinetic information of fission fragments </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Ramos%2C+D">D. Ramos</a>, <a href="/search/nucl-ex?searchtype=author&query=Caamano%2C+M">M. Caamano</a>, <a href="/search/nucl-ex?searchtype=author&query=Lemasson%2C+A">A. Lemasson</a>, <a href="/search/nucl-ex?searchtype=author&query=Rejmund%2C+M">M. Rejmund</a>, <a href="/search/nucl-ex?searchtype=author&query=Audouin%2C+L">L. Audouin</a>, <a href="/search/nucl-ex?searchtype=author&query=Alvarez-Pol%2C+H">H. Alvarez-Pol</a>, <a href="/search/nucl-ex?searchtype=author&query=Frankland%2C+J+D">J. D. Frankland</a>, <a href="/search/nucl-ex?searchtype=author&query=Fernandez-Dominguez%2C+B">B. Fernandez-Dominguez</a>, <a href="/search/nucl-ex?searchtype=author&query=Galiana-Baldo%2C+E">E. Galiana-Baldo</a>, <a href="/search/nucl-ex?searchtype=author&query=Piot%2C+J">J. Piot</a>, <a href="/search/nucl-ex?searchtype=author&query=Ackermann%2C+D">D. Ackermann</a>, <a href="/search/nucl-ex?searchtype=author&query=Biswas%2C+S">S. Biswas</a>, <a href="/search/nucl-ex?searchtype=author&query=Clement%2C+E">E. Clement</a>, <a href="/search/nucl-ex?searchtype=author&query=Durand%2C+D">D. Durand</a>, <a href="/search/nucl-ex?searchtype=author&query=Farget%2C+F">F. Farget</a>, <a href="/search/nucl-ex?searchtype=author&query=Fregeau%2C+M+O">M. O. Fregeau</a>, <a href="/search/nucl-ex?searchtype=author&query=Galaviz%2C+D">D. Galaviz</a>, <a href="/search/nucl-ex?searchtype=author&query=Heinz%2C+A">A. Heinz</a>, <a href="/search/nucl-ex?searchtype=author&query=Henriques%2C+A+I">A. I. Henriques</a>, <a href="/search/nucl-ex?searchtype=author&query=Jacquot%2C+B">B. Jacquot</a>, <a href="/search/nucl-ex?searchtype=author&query=Jurado%2C+B">B. Jurado</a>, <a href="/search/nucl-ex?searchtype=author&query=Kim%2C+Y+H">Y. H. Kim</a>, <a href="/search/nucl-ex?searchtype=author&query=Morfouace%2C+P">P. Morfouace</a>, <a href="/search/nucl-ex?searchtype=author&query=Ralet%2C+D">D. Ralet</a>, <a href="/search/nucl-ex?searchtype=author&query=Roger%2C+T">T. Roger</a> , et al. (3 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="2004.06346v1-abstract-short" style="display: inline;"> The simultaneous measurement of the isotopic fission-fragment yields and fission-fragment velocities of $^{239}$U has been performed for the first time. The $^{239}$U fissioning system was produced in one-neutron transfer reactions between a $^{238}$U beam at 5.88 MeV/nucleon and a $^{9}$Be target. The combination of inverse kinematics at low energy and the use of the VAMOS++ spectrometer at the G… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2004.06346v1-abstract-full').style.display = 'inline'; document.getElementById('2004.06346v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2004.06346v1-abstract-full" style="display: none;"> The simultaneous measurement of the isotopic fission-fragment yields and fission-fragment velocities of $^{239}$U has been performed for the first time. The $^{239}$U fissioning system was produced in one-neutron transfer reactions between a $^{238}$U beam at 5.88 MeV/nucleon and a $^{9}$Be target. The combination of inverse kinematics at low energy and the use of the VAMOS++ spectrometer at the GANIL facility allows the isotopic identification of the full fission-fragment distribution and their velocity in the reference frame of the fissioning system. The proton and neutron content of the fragments at scission, their total kinetic and total excitation energy, as well as the neutron multiplicity were determined. Information from the scission point configuration is obtained from these observables and the correlation between them. The role of the octupole-deformed proton and neutron shells in the fission-fragment production is discussed. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2004.06346v1-abstract-full').style.display = 'none'; document.getElementById('2004.06346v1-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, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 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">8 pages, 7 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 101, 034609 (2020) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2002.04814">arXiv:2002.04814</a> <span> [<a href="https://arxiv.org/pdf/2002.04814">pdf</a>, <a href="https://arxiv.org/format/2002.04814">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.101.021303">10.1103/PhysRevC.101.021303 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Testing ab initio nuclear structure in neutron-rich nuclei: lifetime measurements of second 2+ states in 16C and 20O </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Ciemala%2C+M">M. Ciemala</a>, <a href="/search/nucl-ex?searchtype=author&query=Ziliani%2C+S">S. Ziliani</a>, <a href="/search/nucl-ex?searchtype=author&query=Crespi%2C+F+C+L">F. C. L. Crespi</a>, <a href="/search/nucl-ex?searchtype=author&query=Leoni%2C+S">S. Leoni</a>, <a href="/search/nucl-ex?searchtype=author&query=Fornal%2C+B">B. Fornal</a>, <a href="/search/nucl-ex?searchtype=author&query=Maj%2C+A">A. Maj</a>, <a href="/search/nucl-ex?searchtype=author&query=Bednarczyk%2C+P">P. Bednarczyk</a>, <a href="/search/nucl-ex?searchtype=author&query=Benzoni%2C+G">G. Benzoni</a>, <a href="/search/nucl-ex?searchtype=author&query=Bracco%2C+A">A. Bracco</a>, <a href="/search/nucl-ex?searchtype=author&query=Boiano%2C+C">C. Boiano</a>, <a href="/search/nucl-ex?searchtype=author&query=Bottoni%2C+S">S. Bottoni</a>, <a href="/search/nucl-ex?searchtype=author&query=Brambilla%2C+S">S. Brambilla</a>, <a href="/search/nucl-ex?searchtype=author&query=Bast%2C+M">M. Bast</a>, <a href="/search/nucl-ex?searchtype=author&query=Beckers%2C+M">M. Beckers</a>, <a href="/search/nucl-ex?searchtype=author&query=Braunroth%2C+T">T. Braunroth</a>, <a href="/search/nucl-ex?searchtype=author&query=Camera%2C+F">F. Camera</a>, <a href="/search/nucl-ex?searchtype=author&query=Cieplicka-Orynczak%2C+N">N. Cieplicka-Orynczak</a>, <a href="/search/nucl-ex?searchtype=author&query=Clement%2C+E">E. Clement</a>, <a href="/search/nucl-ex?searchtype=author&query=Coelli%2C+S">S. Coelli</a>, <a href="/search/nucl-ex?searchtype=author&query=Dorvaux%2C+O">O. Dorvaux</a>, <a href="/search/nucl-ex?searchtype=author&query=Erturk%2C+S">S. Erturk</a>, <a href="/search/nucl-ex?searchtype=author&query=de+France%2C+G">G. de France</a>, <a href="/search/nucl-ex?searchtype=author&query=Fransen%2C+C">C. Fransen</a>, <a href="/search/nucl-ex?searchtype=author&query=Goldkuhle%2C+A">A. Goldkuhle</a>, <a href="/search/nucl-ex?searchtype=author&query=Grebosz%2C+J">J. Grebosz</a> , et al. (69 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="2002.04814v1-abstract-short" style="display: inline;"> To test the predictive power of ab initio nuclear structure theory, the lifetime of the second 2+ state in neutron-rich 20O, tau(2+_2 ) = 150(+80-30) fs, and an estimate for the lifetime of the second 2+ state in 16C have been obtained, for the first time. The results were achieved via a novel Monte Carlo technique that allowed us to measure nuclear state lifetimes in the tens-to-hundreds femtosec… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2002.04814v1-abstract-full').style.display = 'inline'; document.getElementById('2002.04814v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2002.04814v1-abstract-full" style="display: none;"> To test the predictive power of ab initio nuclear structure theory, the lifetime of the second 2+ state in neutron-rich 20O, tau(2+_2 ) = 150(+80-30) fs, and an estimate for the lifetime of the second 2+ state in 16C have been obtained, for the first time. The results were achieved via a novel Monte Carlo technique that allowed us to measure nuclear state lifetimes in the tens-to-hundreds femtoseconds range, by analyzing the Doppler-shifted gamma-transition line shapes of products of low-energy transfer and deep-inelastic processes in the reaction 18O (7.0 MeV/u) + 181Ta. The requested sensitivity could only be reached owing to the excellent performances of the AGATA gamma-tracking array, coupled to the PARIS scintillator array and to the VAMOS++ magnetic spectrometer. The experimental lifetimes agree with predictions of ab initio calculations using two- and three-nucleon interactions, obtained with the valence-space in-medium similarity renormalization group for 20O, and with the no-core shell model for 16C. The present measurement shows the power of electromagnetic observables, determined with high-precision gamma spectroscopy, to assess the quality of first-principles nuclear structure calculations, complementing common benchmarks based on nuclear energies. The proposed experimental approach will be essential for short lifetimes measurements in unexplored regions of the nuclear chart, including r-process nuclei, when intense ISOL-type beams become available. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2002.04814v1-abstract-full').style.display = 'none'; document.getElementById('2002.04814v1-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, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2020. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1909.09447">arXiv:1909.09447</a> <span> [<a href="https://arxiv.org/pdf/1909.09447">pdf</a>, <a href="https://arxiv.org/ps/1909.09447">ps</a>, <a href="https://arxiv.org/format/1909.09447">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.123.092503">10.1103/PhysRevLett.123.092503 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> First direct measurement of isotopic fission-fragment yields of $^{239}$U </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Ramos%2C+D">D. Ramos</a>, <a href="/search/nucl-ex?searchtype=author&query=Caamano%2C+M">M. Caamano</a>, <a href="/search/nucl-ex?searchtype=author&query=Lemasson%2C+A">A. Lemasson</a>, <a href="/search/nucl-ex?searchtype=author&query=Rejmund%2C+M">M. Rejmund</a>, <a href="/search/nucl-ex?searchtype=author&query=Audouin%2C+L">L. Audouin</a>, <a href="/search/nucl-ex?searchtype=author&query=Alvarez-Pol%2C+H">H. Alvarez-Pol</a>, <a href="/search/nucl-ex?searchtype=author&query=Frankland%2C+J+D">J. D. Frankland</a>, <a href="/search/nucl-ex?searchtype=author&query=Fernandez-Dominguez%2C+B">B. Fernandez-Dominguez</a>, <a href="/search/nucl-ex?searchtype=author&query=Galiana-Baldo%2C+E">E. Galiana-Baldo</a>, <a href="/search/nucl-ex?searchtype=author&query=Piot%2C+J">J. Piot</a>, <a href="/search/nucl-ex?searchtype=author&query=Ackermann%2C+D">D. Ackermann</a>, <a href="/search/nucl-ex?searchtype=author&query=Biswas%2C+S">S. Biswas</a>, <a href="/search/nucl-ex?searchtype=author&query=Clement%2C+E">E. Clement</a>, <a href="/search/nucl-ex?searchtype=author&query=Durand%2C+D">D. Durand</a>, <a href="/search/nucl-ex?searchtype=author&query=Farget%2C+F">F. Farget</a>, <a href="/search/nucl-ex?searchtype=author&query=Fregeau%2C+M+O">M. O. Fregeau</a>, <a href="/search/nucl-ex?searchtype=author&query=Galaviz%2C+D">D. Galaviz</a>, <a href="/search/nucl-ex?searchtype=author&query=Heinz%2C+A">A. Heinz</a>, <a href="/search/nucl-ex?searchtype=author&query=Henriques%2C+A+I">A. I. Henriques</a>, <a href="/search/nucl-ex?searchtype=author&query=Jacquot%2C+B">B. Jacquot</a>, <a href="/search/nucl-ex?searchtype=author&query=Jurado%2C+B">B. Jurado</a>, <a href="/search/nucl-ex?searchtype=author&query=Kim%2C+Y+H">Y. H. Kim</a>, <a href="/search/nucl-ex?searchtype=author&query=Morfouace%2C+P">P. Morfouace</a>, <a href="/search/nucl-ex?searchtype=author&query=Ralet%2C+D">D. Ralet</a>, <a href="/search/nucl-ex?searchtype=author&query=Roger%2C+T">T. Roger</a> , et al. (3 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="1909.09447v1-abstract-short" style="display: inline;"> A direct and complete measurement of isotopic fission-fragment yields of $^{239}$U has been performed for the first time. The $^{239}$U fissioning system was produced with an average excitation energy of 8.3 MeV in one-neutron transfer reactions between a $^{238}$U beam and a $^{9}$Be target at Coulomb barrier energies. The fission fragments were detected and isotopically identified using the VAMO… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1909.09447v1-abstract-full').style.display = 'inline'; document.getElementById('1909.09447v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1909.09447v1-abstract-full" style="display: none;"> A direct and complete measurement of isotopic fission-fragment yields of $^{239}$U has been performed for the first time. The $^{239}$U fissioning system was produced with an average excitation energy of 8.3 MeV in one-neutron transfer reactions between a $^{238}$U beam and a $^{9}$Be target at Coulomb barrier energies. The fission fragments were detected and isotopically identified using the VAMOS++ spectrometer at the GANIL facility. This measurement allows to directly evaluate the fission models at excitation energies of fast neutrons, relevant for next-generation nuclear reactors. The present data, in agreement with model calculations, do not support the recently reported anomaly in the fission-fragment yields of $^{239}$U and confirm the persistence of spherical shell effects in the Sn region at excitation energies exceeding the fission barrier by few MeV. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1909.09447v1-abstract-full').style.display = 'none'; document.getElementById('1909.09447v1-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 September, 2019; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2019. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 123, 092503 (2019) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1906.01245">arXiv:1906.01245</a> <span> [<a href="https://arxiv.org/pdf/1906.01245">pdf</a>, <a href="https://arxiv.org/ps/1906.01245">ps</a>, <a href="https://arxiv.org/format/1906.01245">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.99.064302">10.1103/PhysRevC.99.064302 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Effects of one valence proton on seniority and angular momentum of neutrons in neutron-rich $^{122-131}$Sb$_{51}$ isotopes </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Biswas%2C+S">S. Biswas</a>, <a href="/search/nucl-ex?searchtype=author&query=Lemasson%2C+A">A. Lemasson</a>, <a href="/search/nucl-ex?searchtype=author&query=Rejmund%2C+M">M. Rejmund</a>, <a href="/search/nucl-ex?searchtype=author&query=Navin%2C+A">A. Navin</a>, <a href="/search/nucl-ex?searchtype=author&query=Kim%2C+Y+H">Y. H. Kim</a>, <a href="/search/nucl-ex?searchtype=author&query=Michelagnoli%2C+C">C. Michelagnoli</a>, <a href="/search/nucl-ex?searchtype=author&query=Stefan%2C+I">I. Stefan</a>, <a href="/search/nucl-ex?searchtype=author&query=Banik%2C+R">R. Banik</a>, <a href="/search/nucl-ex?searchtype=author&query=Bednarczyk%2C+P">P. Bednarczyk</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhattacharya%2C+S">S. Bhattacharya</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhattacharyya%2C+S">S. Bhattacharyya</a>, <a href="/search/nucl-ex?searchtype=author&query=Cl%C3%A9ment%2C+E">E. Cl茅ment</a>, <a href="/search/nucl-ex?searchtype=author&query=Crawford%2C+H+L">H. L. Crawford</a>, <a href="/search/nucl-ex?searchtype=author&query=de+France%2C+G">G. de France</a>, <a href="/search/nucl-ex?searchtype=author&query=Fallon%2C+P">P. Fallon</a>, <a href="/search/nucl-ex?searchtype=author&query=Fr%C3%A9mont%2C+G">G. Fr茅mont</a>, <a href="/search/nucl-ex?searchtype=author&query=Goupil%2C+J">J. Goupil</a>, <a href="/search/nucl-ex?searchtype=author&query=Jacquot%2C+B">B. Jacquot</a>, <a href="/search/nucl-ex?searchtype=author&query=Li%2C+H+J">H. J. Li</a>, <a href="/search/nucl-ex?searchtype=author&query=Ljungvall%2C+J">J. Ljungvall</a>, <a href="/search/nucl-ex?searchtype=author&query=Maj%2C+A">A. Maj</a>, <a href="/search/nucl-ex?searchtype=author&query=M%C3%A9nager%2C+L">L. M茅nager</a>, <a href="/search/nucl-ex?searchtype=author&query=Morel%2C+V">V. Morel</a>, <a href="/search/nucl-ex?searchtype=author&query=Palit%2C+R">R. Palit</a>, <a href="/search/nucl-ex?searchtype=author&query=P%C3%A9rez-Vidal%2C+R+M">R. M. P茅rez-Vidal</a> , et al. (36 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="1906.01245v1-abstract-short" style="display: inline;"> The neutron-rich $^{122-131}$Sb isotopes were produced as fission fragments in the reaction $^{9}$Be($^{238}$U,~f) with 6.2 MeV/u beam energy. An unique setup, consisting of AGATA, VAMOS++ and EXOGAM detectors, was used which enabled the prompt-delayed gamma-ray ($纬$) spectroscopy of fission fragments in the time range of 100 ns - 200 $渭$s. New isomers, prompt and delayed transitions were establis… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1906.01245v1-abstract-full').style.display = 'inline'; document.getElementById('1906.01245v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1906.01245v1-abstract-full" style="display: none;"> The neutron-rich $^{122-131}$Sb isotopes were produced as fission fragments in the reaction $^{9}$Be($^{238}$U,~f) with 6.2 MeV/u beam energy. An unique setup, consisting of AGATA, VAMOS++ and EXOGAM detectors, was used which enabled the prompt-delayed gamma-ray ($纬$) spectroscopy of fission fragments in the time range of 100 ns - 200 $渭$s. New isomers, prompt and delayed transitions were established in the even-A $^{122-130}$Sb isotopes. In the odd-A $^{123-131}$Sb isotopes, new prompt and delayed $纬$-ray transitions were identified, in addition to the confirmation of the previously known isomers. The half-lives of the isomeric states and the $B(E2)$ transition probabilities of the observed transitions depopulating these isomers were extracted. The experimental data was compared with the theoretical results obtained in the framework of Large-Scale Shell-Model (LSSM) calculations in a restricted model space. Modifications of several components of the shell model interaction were introduced to obtain a consistent agreement with the excitation energies and the $B(E2)$ transition probabilities in neutron-rich Sn and Sb isotopes. The isomeric configurations in Sn and Sb were found to be relatively pure. Further, the calculations revealed that the presence of a single valence proton, mainly in the $g_{7/2}$ orbital in Sb isotopes, leads to significant mixing (due to the $谓蟺$ interaction) of: (i) the neutron seniorities ($\upsilon_谓$) and (ii) the neutron angular momentum ($I_谓$). The above features have a weak impact on the excitation energies, but have an important impact on the $B(E2)$ transition probabilities. In addition, a constancy of the relative excitation energies irrespective of neutron seniority and neutron number in Sn and Sb was observed. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1906.01245v1-abstract-full').style.display = 'none'; document.getElementById('1906.01245v1-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 June, 2019; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 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">23 pages, 18 figures, 10 tables</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Physical Review C 99, 064302 (2018) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1905.10313">arXiv:1905.10313</a> <span> [<a href="https://arxiv.org/pdf/1905.10313">pdf</a>, <a href="https://arxiv.org/ps/1905.10313">ps</a>, <a href="https://arxiv.org/format/1905.10313">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.2020.135474">10.1016/j.physletb.2020.135474 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Pairing-quadrupole interplay in the neutron-deficient tin nuclei: first lifetime measurements of low-lying states in $^{106,108}$Sn </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Siciliano%2C+M">M. Siciliano</a>, <a href="/search/nucl-ex?searchtype=author&query=Valiente-Dob%C3%B3n%2C+J+J">J. J. Valiente-Dob贸n</a>, <a href="/search/nucl-ex?searchtype=author&query=Goasduff%2C+A">A. Goasduff</a>, <a href="/search/nucl-ex?searchtype=author&query=Nowacki%2C+F">F. Nowacki</a>, <a href="/search/nucl-ex?searchtype=author&query=Zuker%2C+A+P">A. P. Zuker</a>, <a href="/search/nucl-ex?searchtype=author&query=Bazzacco%2C+D">D. Bazzacco</a>, <a href="/search/nucl-ex?searchtype=author&query=Lopez-Martens%2C+A">A. Lopez-Martens</a>, <a href="/search/nucl-ex?searchtype=author&query=Cl%C3%A9ment%2C+E">E. Cl茅ment</a>, <a href="/search/nucl-ex?searchtype=author&query=Benzoni%2C+G">G. Benzoni</a>, <a href="/search/nucl-ex?searchtype=author&query=Braunroth%2C+T">T. Braunroth</a>, <a href="/search/nucl-ex?searchtype=author&query=Cieplicka-Ory%C5%84czak%2C+N">N. Cieplicka-Ory艅czak</a>, <a href="/search/nucl-ex?searchtype=author&query=Crespi%2C+F+C+L">F. C. L. Crespi</a>, <a href="/search/nucl-ex?searchtype=author&query=de+France%2C+G">G. de France</a>, <a href="/search/nucl-ex?searchtype=author&query=Doncel%2C+M">M. Doncel</a>, <a href="/search/nucl-ex?searchtype=author&query=Ert%C3%BCrk%2C+S">S. Ert眉rk</a>, <a href="/search/nucl-ex?searchtype=author&query=Fransen%2C+C">C. Fransen</a>, <a href="/search/nucl-ex?searchtype=author&query=Gadea%2C+A">A. Gadea</a>, <a href="/search/nucl-ex?searchtype=author&query=Georgiev%2C+G">G. Georgiev</a>, <a href="/search/nucl-ex?searchtype=author&query=Goldkuhle%2C+A">A. Goldkuhle</a>, <a href="/search/nucl-ex?searchtype=author&query=Jakobsson%2C+U">U. Jakobsson</a>, <a href="/search/nucl-ex?searchtype=author&query=Jaworski%2C+G">G. Jaworski</a>, <a href="/search/nucl-ex?searchtype=author&query=John%2C+P+R">P. R. John</a>, <a href="/search/nucl-ex?searchtype=author&query=Kuti%2C+I">I. Kuti</a>, <a href="/search/nucl-ex?searchtype=author&query=Lemasson%2C+A">A. Lemasson</a>, <a href="/search/nucl-ex?searchtype=author&query=Li%2C+H">H. Li</a> , et al. (45 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="1905.10313v2-abstract-short" style="display: inline;"> The lifetimes of the low-lying excited states $2^+$ and $4^+$ have been directly measured in the neutron-deficient $^{106,108}$Sn isotopes. The nuclei were populated via a deep-inelastic reaction and the lifetime measurement was performed employing a differential plunger device. The emitted $纬$ rays were detected by the AGATA array, while the reaction products were uniquely identified by the VAMOS… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1905.10313v2-abstract-full').style.display = 'inline'; document.getElementById('1905.10313v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1905.10313v2-abstract-full" style="display: none;"> The lifetimes of the low-lying excited states $2^+$ and $4^+$ have been directly measured in the neutron-deficient $^{106,108}$Sn isotopes. The nuclei were populated via a deep-inelastic reaction and the lifetime measurement was performed employing a differential plunger device. The emitted $纬$ rays were detected by the AGATA array, while the reaction products were uniquely identified by the VAMOS++ magnetic spectrometer. Large-Scale Shell-Model calculations with realistic forces indicate that, independently of the pairing content of the interaction, the quadrupole force is dominant in the $B(E2; 2_1^+ \to 0_{g.s.}^+)$ values and it describes well the experimental pattern for $^{104-114}$Sn; the $B(E2; 4_1^+ \to 2_1^+)$ values, measured here for the first time, depend critically on a delicate pairing-quadrupole balance, disclosed by the very precise results in $^{108}$Sn. This result provides insight in the hitherto unexplained $B(E2; 4_1^+ \to 2_1^+)/B(E2; 2_1^+ \to 0_{g.s.}^+) < 1$ anomaly. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1905.10313v2-abstract-full').style.display = 'none'; document.getElementById('1905.10313v2-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 May, 2019; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 24 May, 2019; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 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">V1: 6 pages, 3 figures, 1 table, theoretical interpretation described in detail in the arXiv paper of A.P.Zuker (cross-reference) V2: added reference to A.P. Zuker paper (arXiv:1905.11479)</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1901.00184">arXiv:1901.00184</a> <span> [<a href="https://arxiv.org/pdf/1901.00184">pdf</a>, <a href="https://arxiv.org/ps/1901.00184">ps</a>, <a href="https://arxiv.org/format/1901.00184">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.98.044316">10.1103/PhysRevC.98.044316 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Deformed band structures in neutron-rich $^{152-158}$Pm isotopes </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Bhattacharyya%2C+S">S. Bhattacharyya</a>, <a href="/search/nucl-ex?searchtype=author&query=Wang%2C+E+H">E. H. Wang</a>, <a href="/search/nucl-ex?searchtype=author&query=Navin%2C+A">A. Navin</a>, <a href="/search/nucl-ex?searchtype=author&query=Rejmund%2C+M">M. Rejmund</a>, <a href="/search/nucl-ex?searchtype=author&query=Hamilton%2C+J+H">J. H. Hamilton</a>, <a href="/search/nucl-ex?searchtype=author&query=Ramayya%2C+A+V">A. V. Ramayya</a>, <a href="/search/nucl-ex?searchtype=author&query=Hwang%2C+J+K">J. K. Hwang</a>, <a href="/search/nucl-ex?searchtype=author&query=Lemasson%2C+A">A. Lemasson</a>, <a href="/search/nucl-ex?searchtype=author&query=Afanasjev%2C+A+V">A. V. Afanasjev</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhattacharya%2C+S">Soumik Bhattacharya</a>, <a href="/search/nucl-ex?searchtype=author&query=Ranger%2C+J">J. Ranger</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=Cl%C3%A9ment%2C+E">E. Cl茅ment</a>, <a href="/search/nucl-ex?searchtype=author&query=Delaune%2C+O">O. Delaune</a>, <a href="/search/nucl-ex?searchtype=author&query=Farget%2C+F">F. Farget</a>, <a href="/search/nucl-ex?searchtype=author&query=de+France%2C+G">G. de France</a>, <a href="/search/nucl-ex?searchtype=author&query=Jacquot%2C+B">B. Jacquot</a>, <a href="/search/nucl-ex?searchtype=author&query=Luo%2C+Y+X">Y. X. Luo</a>, <a href="/search/nucl-ex?searchtype=author&query=Oganessian%2C+Y+T">Yu. Ts. Oganessian</a>, <a href="/search/nucl-ex?searchtype=author&query=Rasmussen%2C+J+O">J. O. Rasmussen</a>, <a href="/search/nucl-ex?searchtype=author&query=Ter-Akopian%2C+G+M">G. M. Ter-Akopian</a>, <a href="/search/nucl-ex?searchtype=author&query=Zhu%2C+S+J">S. J. Zhu</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="1901.00184v1-abstract-short" style="display: inline;"> High spin band structures of neutron-rich $^{152-158}$Pm isotopes have been obtained from the measurement of prompt $纬$-rays of isotopically identified fragments produced in fission of $^{238}$U+$^{9}$Be and detected using the VAMOS++ magnetic spectrometer and EXOGAM segmented Clover array at GANIL and also from the high statistics $纬$-$纬$-$纬$ and $纬$-$纬$-$纬$-$纬$ data from the spontaneous fission… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1901.00184v1-abstract-full').style.display = 'inline'; document.getElementById('1901.00184v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1901.00184v1-abstract-full" style="display: none;"> High spin band structures of neutron-rich $^{152-158}$Pm isotopes have been obtained from the measurement of prompt $纬$-rays of isotopically identified fragments produced in fission of $^{238}$U+$^{9}$Be and detected using the VAMOS++ magnetic spectrometer and EXOGAM segmented Clover array at GANIL and also from the high statistics $纬$-$纬$-$纬$ and $纬$-$纬$-$纬$-$纬$ data from the spontaneous fission of $^{252}$Cf using Gammasphere. The excited states in $^{157}$Pm and those above the isomers in even-A Pm isotopes $^{152,154,156,158}$Pm have been identified for the first time. The spectroscopic information on the rotational band structures in odd-A Pm isotopes has been extended considerably to higher spins and the possibility of the presence of reflection asymmetric shapes is explored. The configuration assignments are based on the results of Cranked Relativistic Hartree-Bogoliubov calculations. From the systematics of bands in odd-A Pm isotopes and weak population of opposite parity bands, octupole deformed shapes in neutron rich Pm isotopes beyond $N=90$ seem unlikely to be present. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1901.00184v1-abstract-full').style.display = 'none'; document.getElementById('1901.00184v1-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 January, 2019; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2019. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. C 98, 044316 (2018) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1707.03583">arXiv:1707.03583</a> <span> [<a href="https://arxiv.org/pdf/1707.03583">pdf</a>, <a href="https://arxiv.org/format/1707.03583">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/10.1038/nphys3916">10.1038/nphys3916 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> A proton density bubble in the doubly magic $^{34}$Si nucleus </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Mutschler%2C+A">A. Mutschler</a>, <a href="/search/nucl-ex?searchtype=author&query=Lemasson%2C+A">A. Lemasson</a>, <a href="/search/nucl-ex?searchtype=author&query=Sorlin%2C+O">O. Sorlin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bazin%2C+D">D. Bazin</a>, <a href="/search/nucl-ex?searchtype=author&query=Borcea%2C+C">C. Borcea</a>, <a href="/search/nucl-ex?searchtype=author&query=Borcea%2C+R">R. Borcea</a>, <a href="/search/nucl-ex?searchtype=author&query=Dombradi%2C+Z">Z. Dombradi</a>, <a href="/search/nucl-ex?searchtype=author&query=Ebran%2C+J+P">J. P. Ebran</a>, <a href="/search/nucl-ex?searchtype=author&query=Gade%2C+A">A. Gade</a>, <a href="/search/nucl-ex?searchtype=author&query=Iwasaki%2C+H">H. Iwasaki</a>, <a href="/search/nucl-ex?searchtype=author&query=Khan%2C+E">E. Khan</a>, <a href="/search/nucl-ex?searchtype=author&query=Lepailleur%2C+A">A. Lepailleur</a>, <a href="/search/nucl-ex?searchtype=author&query=Recchia%2C+F">F. Recchia</a>, <a href="/search/nucl-ex?searchtype=author&query=Roger%2C+T">T. Roger</a>, <a href="/search/nucl-ex?searchtype=author&query=Rotaru%2C+F">F. Rotaru</a>, <a href="/search/nucl-ex?searchtype=author&query=Sohler%2C+D">D. Sohler</a>, <a href="/search/nucl-ex?searchtype=author&query=Stanoiu%2C+M">M. Stanoiu</a>, <a href="/search/nucl-ex?searchtype=author&query=Stroberg%2C+S+R">S. R. Stroberg</a>, <a href="/search/nucl-ex?searchtype=author&query=Tostevin%2C+J+A">J. A. Tostevin</a>, <a href="/search/nucl-ex?searchtype=author&query=Vandebrouck%2C+M">M. Vandebrouck</a>, <a href="/search/nucl-ex?searchtype=author&query=Weisshaar%2C+D">D. Weisshaar</a>, <a href="/search/nucl-ex?searchtype=author&query=Wimmer%2C+K">K. Wimmer</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="1707.03583v1-abstract-short" style="display: inline;"> Many properties of the atomic nucleus, such as vibrations, rotations and incompressibility, can be interpreted as due to a two component quantum liquid of protons and neutrons. Electron scattering measurements on stable nuclei demonstrate that their central densities are saturated, as for liquid drops. In exotic nuclei near the limits of mass and charge, with large imbalances in their proton and n… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1707.03583v1-abstract-full').style.display = 'inline'; document.getElementById('1707.03583v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1707.03583v1-abstract-full" style="display: none;"> Many properties of the atomic nucleus, such as vibrations, rotations and incompressibility, can be interpreted as due to a two component quantum liquid of protons and neutrons. Electron scattering measurements on stable nuclei demonstrate that their central densities are saturated, as for liquid drops. In exotic nuclei near the limits of mass and charge, with large imbalances in their proton and neutron numbers, the possibility of a depleted central density, or a 'bubble' structure, has been discussed in a recurrent manner since the 1970s. Here we report first experimental evidence that points to a depletion of the central density of protons in the short-lived nucleus 34Si. The proton-to-neutron density asymmetry in 34Si offers the possibility to place constraints on the density and isospin dependence of the spin--orbit force-on which nuclear models have disagreed for decades-and on its stabilizing effect towards limits of nuclear existence. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1707.03583v1-abstract-full').style.display = 'none'; document.getElementById('1707.03583v1-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 July, 2017; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 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">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> Nature Physics, Nature Publishing Group, 2017, 13 (2), pp.142-146 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1704.07941">arXiv:1704.07941</a> <span> [<a href="https://arxiv.org/pdf/1704.07941">pdf</a>, <a href="https://arxiv.org/format/1704.07941">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 Astrophysical Phenomena">astro-ph.HE</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.95.055806">10.1103/PhysRevC.95.055806 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Low-lying level structure of $^{56}$Cu and its implications on the rp process </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Ong%2C+W">W-J. Ong</a>, <a href="/search/nucl-ex?searchtype=author&query=Langer%2C+C">C. Langer</a>, <a href="/search/nucl-ex?searchtype=author&query=Montes%2C+F">F. Montes</a>, <a href="/search/nucl-ex?searchtype=author&query=Aprahamian%2C+A">A. Aprahamian</a>, <a href="/search/nucl-ex?searchtype=author&query=Bardayan%2C+D+W">D. W. Bardayan</a>, <a href="/search/nucl-ex?searchtype=author&query=Bazin%2C+D">D. Bazin</a>, <a href="/search/nucl-ex?searchtype=author&query=Brown%2C+B+A">B. A. Brown</a>, <a href="/search/nucl-ex?searchtype=author&query=Browne%2C+J">J. Browne</a>, <a href="/search/nucl-ex?searchtype=author&query=Crawford%2C+H">H. Crawford</a>, <a href="/search/nucl-ex?searchtype=author&query=Cyburt%2C+R">R. Cyburt</a>, <a href="/search/nucl-ex?searchtype=author&query=Deleeuw%2C+E+B">E. B. Deleeuw</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=Gade%2C+A">A. Gade</a>, <a href="/search/nucl-ex?searchtype=author&query=George%2C+S">S. George</a>, <a href="/search/nucl-ex?searchtype=author&query=Hosmer%2C+P">P. Hosmer</a>, <a href="/search/nucl-ex?searchtype=author&query=Keek%2C+L">L. Keek</a>, <a href="/search/nucl-ex?searchtype=author&query=Kontos%2C+A">A. Kontos</a>, <a href="/search/nucl-ex?searchtype=author&query=Lee%2C+I">I-Y. Lee</a>, <a href="/search/nucl-ex?searchtype=author&query=Lemasson%2C+A">A. Lemasson</a>, <a href="/search/nucl-ex?searchtype=author&query=Lunderberg%2C+E">E. Lunderberg</a>, <a href="/search/nucl-ex?searchtype=author&query=Maeda%2C+Y">Y. Maeda</a>, <a href="/search/nucl-ex?searchtype=author&query=Matos%2C+M">M. Matos</a>, <a href="/search/nucl-ex?searchtype=author&query=Meisel%2C+Z">Z. Meisel</a>, <a href="/search/nucl-ex?searchtype=author&query=Noji%2C+S">S. Noji</a>, <a href="/search/nucl-ex?searchtype=author&query=Nunes%2C+F+M">F. M. Nunes</a> , et al. (17 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="1704.07941v1-abstract-short" style="display: inline;"> The low-lying energy levels of proton-rich $^{56}$Cu have been extracted using in-beam $纬$-ray spectroscopy with the state-of-the-art $纬$-ray tracking array GRETINA in conjunction with the S800 spectrograph at the National Superconducting Cyclotron Laboratory at Michigan State University. Excited states in $^{56}$Cu serve as resonances in the $^{55}$Ni(p,$纬$)$^{56}$Cu reaction, which is a part of… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1704.07941v1-abstract-full').style.display = 'inline'; document.getElementById('1704.07941v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1704.07941v1-abstract-full" style="display: none;"> The low-lying energy levels of proton-rich $^{56}$Cu have been extracted using in-beam $纬$-ray spectroscopy with the state-of-the-art $纬$-ray tracking array GRETINA in conjunction with the S800 spectrograph at the National Superconducting Cyclotron Laboratory at Michigan State University. Excited states in $^{56}$Cu serve as resonances in the $^{55}$Ni(p,$纬$)$^{56}$Cu reaction, which is a part of the rp-process in type I x-ray bursts. To resolve existing ambiguities in the reaction Q-value, a more localized IMME mass fit is used resulting in $Q=639\pm82$~keV. We derive the first experimentally-constrained thermonuclear reaction rate for $^{55}$Ni(p,$纬$)$^{56}$Cu. We find that, with this new rate, the rp-process may bypass the $^{56}$Ni waiting point via the $^{55}$Ni(p,$纬$) reaction for typical x-ray burst conditions with a branching of up to $\sim$40$\%$. We also identify additional nuclear physics uncertainties that need to be addressed before drawing final conclusions about the rp-process reaction flow in the $^{56}$Ni region. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1704.07941v1-abstract-full').style.display = 'none'; document.getElementById('1704.07941v1-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 April, 2017; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 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">8 pages, accepted for 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/1602.03296">arXiv:1602.03296</a> <span> [<a href="https://arxiv.org/pdf/1602.03296">pdf</a>, <a href="https://arxiv.org/format/1602.03296">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.93.034333">10.1103/PhysRevC.93.034333 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Spectroscopy of $^{35}$P using the one-proton knockout reaction </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Mutschler%2C+A">A. Mutschler</a>, <a href="/search/nucl-ex?searchtype=author&query=Sorlin%2C+O">O. Sorlin</a>, <a href="/search/nucl-ex?searchtype=author&query=Lemasson%2C+A">A. Lemasson</a>, <a href="/search/nucl-ex?searchtype=author&query=Bazin%2C+D">D. Bazin</a>, <a href="/search/nucl-ex?searchtype=author&query=Borcea%2C+C">C. Borcea</a>, <a href="/search/nucl-ex?searchtype=author&query=Borcea%2C+R">R. Borcea</a>, <a href="/search/nucl-ex?searchtype=author&query=Gade%2C+A">A. Gade</a>, <a href="/search/nucl-ex?searchtype=author&query=Iwasaki%2C+H">H. Iwasaki</a>, <a href="/search/nucl-ex?searchtype=author&query=Khan%2C+E">E. Khan</a>, <a href="/search/nucl-ex?searchtype=author&query=Lepailleur%2C+A">A. Lepailleur</a>, <a href="/search/nucl-ex?searchtype=author&query=Recchia%2C+F">F. Recchia</a>, <a href="/search/nucl-ex?searchtype=author&query=Roger%2C+T">T. Roger</a>, <a href="/search/nucl-ex?searchtype=author&query=Rotaru%2C+F">F. Rotaru</a>, <a href="/search/nucl-ex?searchtype=author&query=Stanoiu%2C+M">M. Stanoiu</a>, <a href="/search/nucl-ex?searchtype=author&query=Stroberg%2C+R">R. Stroberg</a>, <a href="/search/nucl-ex?searchtype=author&query=Tostevin%2C+J+A">J. A. Tostevin</a>, <a href="/search/nucl-ex?searchtype=author&query=Vandebrouck%2C+M">M. Vandebrouck</a>, <a href="/search/nucl-ex?searchtype=author&query=Weisshaar%2C+D">D. Weisshaar</a>, <a href="/search/nucl-ex?searchtype=author&query=Wimmer%2C+K">K. Wimmer</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="1602.03296v1-abstract-short" style="display: inline;"> The structure of $^{35}$P was studied with a one-proton knockout reaction at88~MeV/u from a $^{36}$S projectile beam at NSCL. The $纬$ rays from thedepopulation of excited states in $^{35}$P were detected with GRETINA, whilethe $^{35}$P nuclei were identified event-by-event in the focal plane of theS800 spectrograph. The level scheme of $^{35}$P was deduced up to 7.5 MeV using$纬-纬$ coincidences. T… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1602.03296v1-abstract-full').style.display = 'inline'; document.getElementById('1602.03296v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1602.03296v1-abstract-full" style="display: none;"> The structure of $^{35}$P was studied with a one-proton knockout reaction at88~MeV/u from a $^{36}$S projectile beam at NSCL. The $纬$ rays from thedepopulation of excited states in $^{35}$P were detected with GRETINA, whilethe $^{35}$P nuclei were identified event-by-event in the focal plane of theS800 spectrograph. The level scheme of $^{35}$P was deduced up to 7.5 MeV using$纬-纬$ coincidences. The observed levels were attributed to protonremovals from the $sd$-shell and also from the deeply-bound $p\_{1/2}$ orbital.The orbital angular momentum of each state was derived from the comparisonbetween experimental and calculated shapes of individual ($纬$-gated)parallel momentum distributions. Despite the use of different reactions andtheir associate models, spectroscopic factors, $C^2S$, derived from the$^{36}$S $(-1p)$ knockout reaction agree with those obtained earlier from$^{36}$S($d$,\nuc{3}{He}) transfer, if a reduction factor $R\_s$, as deducedfrom inclusive one-nucleon removal cross sections, is applied to the knockout transitions.In addition to the expected proton-hole configurations, other states were observedwith individual cross sections of the order of 0.5~mb. Based on their shiftedparallel momentum distributions, their decay modes to negative parity states,their high excitation energy (around 4.7~MeV) and the fact that they were notobserved in the ($d$,\nuc{3}{He}) reaction, we propose that they may resultfrom a two-step mechanism or a nucleon-exchange reaction with subsequent neutronevaporation. Regardless of the mechanism, that could not yet be clarified, thesestates likely correspond to neutron core excitations in \nuc{35}{P}. Thisnewly-identified pathway, although weak, offers the possibility to selectivelypopulate certain intruder configurations that are otherwise hard to produceand identify. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1602.03296v1-abstract-full').style.display = 'none'; document.getElementById('1602.03296v1-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 February, 2016; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 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">5 figures, 1 table, accepted for publication in Physical Review C</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> GANIL P 2016-01 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. C 93, 034333 (2016) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1512.08881">arXiv:1512.08881</a> <span> [<a href="https://arxiv.org/pdf/1512.08881">pdf</a>, <a href="https://arxiv.org/format/1512.08881">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.2015.12.040">10.1016/j.nima.2015.12.040 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Dual Position Sensitive MWPC for tracking reaction products at VAMOS++ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Vandebrouck%2C+M">Marine Vandebrouck</a>, <a href="/search/nucl-ex?searchtype=author&query=Lemasson%2C+A">Antoine Lemasson</a>, <a href="/search/nucl-ex?searchtype=author&query=Rejmund%2C+M">Maurycy Rejmund</a>, <a href="/search/nucl-ex?searchtype=author&query=Fremont%2C+G">Georges Fremont</a>, <a href="/search/nucl-ex?searchtype=author&query=Pancin%2C+J">Julien Pancin</a>, <a href="/search/nucl-ex?searchtype=author&query=Navin%2C+A">Alahari Navin</a>, <a href="/search/nucl-ex?searchtype=author&query=Michelagnoli%2C+C">Caterina Michelagnoli</a>, <a href="/search/nucl-ex?searchtype=author&query=Goupil%2C+J">Johan Goupil</a>, <a href="/search/nucl-ex?searchtype=author&query=Spitaels%2C+C">Charles Spitaels</a>, <a href="/search/nucl-ex?searchtype=author&query=Jacquot%2C+B">Bertrand Jacquot</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="1512.08881v1-abstract-short" style="display: inline;"> The characteristics and performance of a Dual Position Sensitive Multi-Wire Proportional Counter (DPS-MWPC) used to measure the scattering angle, interaction position on the target and the velocity of reaction products, detected in the VAMOS++ magnetic spectrometer, are reported. The detector consists of a pair of position sensitive low pressure MWPCs and provides both fast timing signals, along w… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1512.08881v1-abstract-full').style.display = 'inline'; document.getElementById('1512.08881v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1512.08881v1-abstract-full" style="display: none;"> The characteristics and performance of a Dual Position Sensitive Multi-Wire Proportional Counter (DPS-MWPC) used to measure the scattering angle, interaction position on the target and the velocity of reaction products, detected in the VAMOS++ magnetic spectrometer, are reported. The detector consists of a pair of position sensitive low pressure MWPCs and provides both fast timing signals, along with the two-dimensional position coordinates required to define the trajectory of the reaction products. A time-of-flight resolution of 305(11) ps (FWHM) was measured. The measured resolutions (FWHM) were 2.5(3) mrad and 560(70) 渭m for the scattering angle and the interaction point at the target respectively. The subsequent improvement of the Doppler correction of the energy of the gamma-rays, detected in the gamma-ray tracking array AGATA in coincidence with isotopically identified ions in VAMOS++, is also discussed. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1512.08881v1-abstract-full').style.display = 'none'; document.getElementById('1512.08881v1-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 December, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 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">Accepted for publication in Nuclear Inst. and Methods in Physics Research, A</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1509.04854">arXiv:1509.04854</a> <span> [<a href="https://arxiv.org/pdf/1509.04854">pdf</a>, <a href="https://arxiv.org/ps/1509.04854">ps</a>, <a href="https://arxiv.org/format/1509.04854">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.92.034317">10.1103/PhysRevC.92.034317 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Identification of new transitions and mass assignments of levels in $^{143-153}$Pr </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Wang%2C+E+H">E. H. Wang</a>, <a href="/search/nucl-ex?searchtype=author&query=Lemasson%2C+A">A. Lemasson</a>, <a href="/search/nucl-ex?searchtype=author&query=Hamilton%2C+J+H">J. H. Hamilton</a>, <a href="/search/nucl-ex?searchtype=author&query=Ramayya%2C+A+V">A. V. Ramayya</a>, <a href="/search/nucl-ex?searchtype=author&query=Hwang%2C+J+K">J. K. Hwang</a>, <a href="/search/nucl-ex?searchtype=author&query=Eldridge%2C+J+M">J. M. Eldridge</a>, <a href="/search/nucl-ex?searchtype=author&query=Navin%2C+A">A. Navin</a>, <a href="/search/nucl-ex?searchtype=author&query=Rejmund%2C+M">M. Rejmund</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhattacharyya%2C+S">S. Bhattacharyya</a>, <a href="/search/nucl-ex?searchtype=author&query=Liu%2C+S+H">S. H. Liu</a>, <a href="/search/nucl-ex?searchtype=author&query=Brewer%2C+N+T">N. T. Brewer</a>, <a href="/search/nucl-ex?searchtype=author&query=Luo%2C+Y+X">Y. X. Luo</a>, <a href="/search/nucl-ex?searchtype=author&query=Rasmussen%2C+J+O">J. O. Rasmussen</a>, <a href="/search/nucl-ex?searchtype=author&query=Liu%2C+H+L">H. L. Liu</a>, <a href="/search/nucl-ex?searchtype=author&query=Zhou%2C+H">H. Zhou</a>, <a href="/search/nucl-ex?searchtype=author&query=Liu%2C+Y+X">Y. X. Liu</a>, <a href="/search/nucl-ex?searchtype=author&query=Li%2C+H+J">H. J. Li</a>, <a href="/search/nucl-ex?searchtype=author&query=Sun%2C+Y">Y. Sun</a>, <a href="/search/nucl-ex?searchtype=author&query=Xu%2C+F+R">F. R. Xu</a>, <a href="/search/nucl-ex?searchtype=author&query=Zhu%2C+S+J">S. J. Zhu</a>, <a href="/search/nucl-ex?searchtype=author&query=Ter-Akopian%2C+G+M">G. M. Ter-Akopian</a>, <a href="/search/nucl-ex?searchtype=author&query=Oganessian%2C+Y+T">Yu. Ts. Oganessian</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=Cl%C3%A9ment%2C+E">E. Cl茅ment</a>, <a href="/search/nucl-ex?searchtype=author&query=Delaune%2C+O">O. Delaune</a> , et al. (3 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="1509.04854v1-abstract-short" style="display: inline;"> The previously reported levels assigned to 151,152,153Pr have recently been called into question regarding their mass assignment. The above questioned level assignments are clarified by measuring g-transitions tagged with A and Z in an in-beam experiment in addition to the measurements from 252Cf spontaneous fission (SF) and establish new spectroscopic information from $N=84$ to $N=94$ in the Pr i… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1509.04854v1-abstract-full').style.display = 'inline'; document.getElementById('1509.04854v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1509.04854v1-abstract-full" style="display: none;"> The previously reported levels assigned to 151,152,153Pr have recently been called into question regarding their mass assignment. The above questioned level assignments are clarified by measuring g-transitions tagged with A and Z in an in-beam experiment in addition to the measurements from 252Cf spontaneous fission (SF) and establish new spectroscopic information from $N=84$ to $N=94$ in the Pr isotopic chain. The isotopic chain 143-153Pr has been studied from the spontaneous fission of 252Cf by using Gammasphere and also from the measurement of the prompt g-rays in coincidence with isotopically-identified fission fragments using VAMOS++ and EXOGAM at GANIL. The latter were produced using 238U beams on a 9Be target at energies around the Coulomb barrier. The g-g-g-g data from 252Cf (SF) and those from the GANIL in-beam A- and Z-gated spectra were combined to unambiguously assign the various transitions and levels in 151,152,153Pr and other isotopes. New transitions and bands in 145,147,148,149,150Pr were identified by using g-g-g and g-g-g-g coincidences and A and Z gated g-g spectra. The transitions and levels previously assigned to 151,153Pr have been confirmed by the (A,Z) gated spectra. The transitions previously assigned to 152Pr are now assigned to 151Pr on the basis of the (A,Z) gated spectra. Two new bands with 20 new transitions in 152Pr and one new band with 7 new transitions in 153Pr are identified from the g-g-g-g coincidence spectra and the (A,Z) gated spectrum. In addition, new g-rays are also reported in 143-146Pr. New levels of 145,147-153Pr have been established, reliable mass assignments of the levels in 151,152,153Pr have been reported and new transitions have been identified in 143-146Pr showing the new avenues that are opened by combining the two experimental approaches. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1509.04854v1-abstract-full').style.display = 'none'; document.getElementById('1509.04854v1-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 September, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 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">Accepted in Phys. Rev. C</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, 034317 (2015) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1507.04170">arXiv:1507.04170</a> <span> [<a href="https://arxiv.org/pdf/1507.04170">pdf</a>, <a href="https://arxiv.org/ps/1507.04170">ps</a>, <a href="https://arxiv.org/format/1507.04170">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.92.034606">10.1103/PhysRevC.92.034606 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Characterization of the scission point from fission-fragment velocities </p> <p class="authors"> <span class="search-hit">Authors:</span> <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=Farget%2C+F">F. Farget</a>, <a href="/search/nucl-ex?searchtype=author&query=Delaune%2C+O">O. Delaune</a>, <a href="/search/nucl-ex?searchtype=author&query=Schmidt%2C+K+-">K. -H. Schmidt</a>, <a href="/search/nucl-ex?searchtype=author&query=Schmitt%2C+C">C. Schmitt</a>, <a href="/search/nucl-ex?searchtype=author&query=Audouin%2C+L">L. Audouin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bacri%2C+C+-">C. -O. Bacri</a>, <a href="/search/nucl-ex?searchtype=author&query=Benlliure%2C+J">J. Benlliure</a>, <a href="/search/nucl-ex?searchtype=author&query=Casarejos%2C+E">E. Casarejos</a>, <a href="/search/nucl-ex?searchtype=author&query=Derkx%2C+X">X. Derkx</a>, <a href="/search/nucl-ex?searchtype=author&query=Fern%C3%A1ndez-Dom%C3%ADnguez%2C+B">B. Fern谩ndez-Dom铆nguez</a>, <a href="/search/nucl-ex?searchtype=author&query=Gaudefroy%2C+L">L. Gaudefroy</a>, <a href="/search/nucl-ex?searchtype=author&query=Golabek%2C+C">C. Golabek</a>, <a href="/search/nucl-ex?searchtype=author&query=Jurado%2C+B">B. Jurado</a>, <a href="/search/nucl-ex?searchtype=author&query=Lemasson%2C+A">A. Lemasson</a>, <a href="/search/nucl-ex?searchtype=author&query=Ramos%2C+D">D. Ramos</a>, <a href="/search/nucl-ex?searchtype=author&query=Rodr%C3%ADguez-Tajes%2C+C">C. Rodr铆guez-Tajes</a>, <a href="/search/nucl-ex?searchtype=author&query=Roger%2C+T">T. Roger</a>, <a href="/search/nucl-ex?searchtype=author&query=Shrivastava%2C+A">A. Shrivastava</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="1507.04170v1-abstract-short" style="display: inline;"> The isotopic-yield distributions and kinematic properties of fragments produced in transfer-induced fission of 240Pu and fusion-induced fission of 250Cf, with 9 MeV and 45 MeV of excitation energy respectively, were measured in inverse kinematics with the spectrometer VAMOS. The kinematic properties of identified fission fragments allow to derive properties of the scission configuration such as th… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1507.04170v1-abstract-full').style.display = 'inline'; document.getElementById('1507.04170v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1507.04170v1-abstract-full" style="display: none;"> The isotopic-yield distributions and kinematic properties of fragments produced in transfer-induced fission of 240Pu and fusion-induced fission of 250Cf, with 9 MeV and 45 MeV of excitation energy respectively, were measured in inverse kinematics with the spectrometer VAMOS. The kinematic properties of identified fission fragments allow to derive properties of the scission configuration such as the distance between fragments, the total kinetic energy, the neutron multiplicity, the total excitation energy, and, for the first time, the proton- and neutron-number sharing during the emergence of the fragments. These properties of the scission point are studied as functions of the fragment atomic number. The correlation between these observables, gathered in one single experiment and for two different fissioning systems at different excitation energies, give valuable information for the understanding and modeling of the fission process. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1507.04170v1-abstract-full').style.display = 'none'; document.getElementById('1507.04170v1-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 July, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 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">12 pages, 8 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/1504.02329">arXiv:1504.02329</a> <span> [<a href="https://arxiv.org/pdf/1504.02329">pdf</a>, <a href="https://arxiv.org/format/1504.02329">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.91.041302">10.1103/PhysRevC.91.041302 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Neutron single-particle strength in silicon isotopes: Constraining the driving forces of shell evolution </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Stroberg%2C+S+R">S. R. Stroberg</a>, <a href="/search/nucl-ex?searchtype=author&query=Gade%2C+A">A. Gade</a>, <a href="/search/nucl-ex?searchtype=author&query=Tostevin%2C+J+A">J. A. Tostevin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bader%2C+V+M">V. M. Bader</a>, <a href="/search/nucl-ex?searchtype=author&query=Baugher%2C+T">T. Baugher</a>, <a href="/search/nucl-ex?searchtype=author&query=Bazin%2C+D">D. Bazin</a>, <a href="/search/nucl-ex?searchtype=author&query=Berryman%2C+J+S">J. S. Berryman</a>, <a href="/search/nucl-ex?searchtype=author&query=Brown%2C+B+A">B. A. Brown</a>, <a href="/search/nucl-ex?searchtype=author&query=Campbell%2C+C+M">C. M. Campbell</a>, <a href="/search/nucl-ex?searchtype=author&query=Kemper%2C+K+W">K. W. Kemper</a>, <a href="/search/nucl-ex?searchtype=author&query=Langer%2C+C">C. Langer</a>, <a href="/search/nucl-ex?searchtype=author&query=Lunderberg%2C+E">E. Lunderberg</a>, <a href="/search/nucl-ex?searchtype=author&query=Lemasson%2C+A">A. Lemasson</a>, <a href="/search/nucl-ex?searchtype=author&query=Noji%2C+S">S. Noji</a>, <a href="/search/nucl-ex?searchtype=author&query=Otsuka%2C+T">T. Otsuka</a>, <a href="/search/nucl-ex?searchtype=author&query=Recchia%2C+F">F. Recchia</a>, <a href="/search/nucl-ex?searchtype=author&query=Walz%2C+C">C. Walz</a>, <a href="/search/nucl-ex?searchtype=author&query=Weisshaar%2C+D">D. Weisshaar</a>, <a href="/search/nucl-ex?searchtype=author&query=Williams%2C+S">S. Williams</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="1504.02329v1-abstract-short" style="display: inline;"> Shell evolution is studied in the neutron-rich silicon isotopes 36,38,40 Si using neutron single-particle strengths deduced from one-neutron knockout reactions. Configurations involving neutron excita- tions across the N = 20 and N = 28 shell gaps are quantified experimentally in these rare isotopes. Comparisons with shell model calculations show that the tensor force, understood to drive the col-… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1504.02329v1-abstract-full').style.display = 'inline'; document.getElementById('1504.02329v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1504.02329v1-abstract-full" style="display: none;"> Shell evolution is studied in the neutron-rich silicon isotopes 36,38,40 Si using neutron single-particle strengths deduced from one-neutron knockout reactions. Configurations involving neutron excita- tions across the N = 20 and N = 28 shell gaps are quantified experimentally in these rare isotopes. Comparisons with shell model calculations show that the tensor force, understood to drive the col- lective behavior in 42 Si with N = 28, is already important in determining the structure of 40 Si with N = 26. New data relating to cross-shell excitations provide the first quantitative support for repulsive contributions to the cross-shell T = 1 interaction arising from three-nucleon forces. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1504.02329v1-abstract-full').style.display = 'none'; document.getElementById('1504.02329v1-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 April, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2015. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1503.08568">arXiv:1503.08568</a> <span> [<a href="https://arxiv.org/pdf/1503.08568">pdf</a>, <a href="https://arxiv.org/format/1503.08568">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.92.054309">10.1103/PhysRevC.92.054309 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Spectroscopy of $^{28}$Na: shell evolution toward the drip line </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Lepailleur%2C+A">A. Lepailleur</a>, <a href="/search/nucl-ex?searchtype=author&query=Wimmer%2C+K">K. Wimmer</a>, <a href="/search/nucl-ex?searchtype=author&query=Mutschler%2C+A">A. Mutschler</a>, <a href="/search/nucl-ex?searchtype=author&query=Sorlin%2C+O">O. Sorlin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bader%2C+V">V. Bader</a>, <a href="/search/nucl-ex?searchtype=author&query=Bancroft%2C+C">C. Bancroft</a>, <a href="/search/nucl-ex?searchtype=author&query=Barofsky%2C+D">D. Barofsky</a>, <a href="/search/nucl-ex?searchtype=author&query=Bastin%2C+B">B. Bastin</a>, <a href="/search/nucl-ex?searchtype=author&query=Baugher%2C+T">T. Baugher</a>, <a href="/search/nucl-ex?searchtype=author&query=Bazin%2C+D">D. Bazin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bildstein%2C+V">V. Bildstein</a>, <a href="/search/nucl-ex?searchtype=author&query=Borcea%2C+C">C. Borcea</a>, <a href="/search/nucl-ex?searchtype=author&query=Borcea%2C+R">R. Borcea</a>, <a href="/search/nucl-ex?searchtype=author&query=Brown%2C+B+A">B. A. Brown</a>, <a href="/search/nucl-ex?searchtype=author&query=Caceres%2C+L">L. Caceres</a>, <a href="/search/nucl-ex?searchtype=author&query=Gade%2C+A">A. Gade</a>, <a href="/search/nucl-ex?searchtype=author&query=Gaudefroy%2C+L">L. Gaudefroy</a>, <a href="/search/nucl-ex?searchtype=author&query=Gr%C3%A9vy%2C+S">S. Gr茅vy</a>, <a href="/search/nucl-ex?searchtype=author&query=Grinyer%2C+G+F">G. F. Grinyer</a>, <a href="/search/nucl-ex?searchtype=author&query=Iwasaki%2C+H">H. Iwasaki</a>, <a href="/search/nucl-ex?searchtype=author&query=Khan%2C+E">E. Khan</a>, <a href="/search/nucl-ex?searchtype=author&query=Kr%C3%B6ll%2C+T">T. Kr枚ll</a>, <a href="/search/nucl-ex?searchtype=author&query=Langer%2C+C">C. Langer</a>, <a href="/search/nucl-ex?searchtype=author&query=Lemasson%2C+A">A. Lemasson</a>, <a href="/search/nucl-ex?searchtype=author&query=Llidoo%2C+O">O. Llidoo</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="1503.08568v1-abstract-short" style="display: inline;"> Excited states in $^{28}$Na have been studied using the $尾$-decay of implanted $^{28}$Ne ions at GANIL/LISE as well as the in-beam $纬$-ray spectroscopy at the NSCL/S800 facility. New states of positive (J$^蟺$=3,4$^+$) and negative (J$^蟺$=1-5$^-$) parity are proposed. The former arise from the coupling between 0d$\_{5/2}$ protons and a 0d$\_{3/2}$ neutron, while the latter are due to couplings wit… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1503.08568v1-abstract-full').style.display = 'inline'; document.getElementById('1503.08568v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1503.08568v1-abstract-full" style="display: none;"> Excited states in $^{28}$Na have been studied using the $尾$-decay of implanted $^{28}$Ne ions at GANIL/LISE as well as the in-beam $纬$-ray spectroscopy at the NSCL/S800 facility. New states of positive (J$^蟺$=3,4$^+$) and negative (J$^蟺$=1-5$^-$) parity are proposed. The former arise from the coupling between 0d$\_{5/2}$ protons and a 0d$\_{3/2}$ neutron, while the latter are due to couplings with 1p$\_{3/2}$ or 0f$\_{7/2}$ neutrons. While the relative energies between the J$^蟺$=1-4$^+$ states are well reproduced with the USDA interaction in the N=17 isotones, a progressive shift in the ground state binding energy (by about 500 keV) is observed between $^{26}$F and $^{30}$Al. This points to a possible change in the proton-neutron 0d$\_{5/2}$-0d$\_{3/2}$ effective interaction when moving from stability to the drip line. The presence of J$^蟺$=1-4$^-$ negative parity states around 1.5 MeV as well as of a candidate for a J$^蟺$=5$^-$ state around 2.5 MeV give further support to the collapse of the N=20 gap and to the inversion between the 0f$\_{7/2}$ and 1p$\_{3/2}$ levels below Z=12. These features are discussed in the framework of Shell Model and EDF calculations, leading to predicted negative parity states in the low energy spectra of the $^{26}$F and $^{25}$O nuclei. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1503.08568v1-abstract-full').style.display = 'none'; document.getElementById('1503.08568v1-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 March, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 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">Exp茅rience GANIL/LISE et NSCL/S800</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> GANIL P 2015-04 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. C 92, 054309 (2015) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1310.1632">arXiv:1310.1632</a> <span> [<a href="https://arxiv.org/pdf/1310.1632">pdf</a>, <a href="https://arxiv.org/format/1310.1632">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 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/10.1088/1742-6596/665/1/012044">10.1088/1742-6596/665/1/012044 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Nuclear astrophysics with radioactive ions at FAIR </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Reifarth%2C+R">R. Reifarth</a>, <a href="/search/nucl-ex?searchtype=author&query=Altstadt%2C+S">S. Altstadt</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=Heftrich%2C+T">T. Heftrich</a>, <a href="/search/nucl-ex?searchtype=author&query=Heil%2C+M">M. Heil</a>, <a href="/search/nucl-ex?searchtype=author&query=Koloczek%2C+A">A. Koloczek</a>, <a href="/search/nucl-ex?searchtype=author&query=Langer%2C+C">C. Langer</a>, <a href="/search/nucl-ex?searchtype=author&query=Plag%2C+R">R. Plag</a>, <a href="/search/nucl-ex?searchtype=author&query=Pohl%2C+M">M. Pohl</a>, <a href="/search/nucl-ex?searchtype=author&query=Sonnabend%2C+K">K. Sonnabend</a>, <a href="/search/nucl-ex?searchtype=author&query=Weigand%2C+M">M. Weigand</a>, <a href="/search/nucl-ex?searchtype=author&query=Adachi%2C+T">T. Adachi</a>, <a href="/search/nucl-ex?searchtype=author&query=Aksouh%2C+F">F. Aksouh</a>, <a href="/search/nucl-ex?searchtype=author&query=Al-Khalili%2C+J">J. Al-Khalili</a>, <a href="/search/nucl-ex?searchtype=author&query=AlGarawi%2C+M">M. AlGarawi</a>, <a href="/search/nucl-ex?searchtype=author&query=AlGhamdi%2C+S">S. AlGhamdi</a>, <a href="/search/nucl-ex?searchtype=author&query=Alkhazov%2C+G">G. Alkhazov</a>, <a href="/search/nucl-ex?searchtype=author&query=Alkhomashi%2C+N">N. Alkhomashi</a>, <a href="/search/nucl-ex?searchtype=author&query=Alvarez-Pol%2C+H">H. Alvarez-Pol</a>, <a href="/search/nucl-ex?searchtype=author&query=Alvarez-Rodriguez%2C+R">R. Alvarez-Rodriguez</a>, <a href="/search/nucl-ex?searchtype=author&query=Andreev%2C+V">V. Andreev</a>, <a href="/search/nucl-ex?searchtype=author&query=Andrei%2C+B">B. Andrei</a>, <a href="/search/nucl-ex?searchtype=author&query=Atar%2C+L">L. Atar</a>, <a href="/search/nucl-ex?searchtype=author&query=Aumann%2C+T">T. Aumann</a>, <a href="/search/nucl-ex?searchtype=author&query=Avdeichikov%2C+V">V. Avdeichikov</a> , et al. (295 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="1310.1632v1-abstract-short" style="display: inline;"> The nucleosynthesis of elements beyond iron is dominated by neutron captures in the s and r processes. However, 32 stable, proton-rich isotopes cannot be formed during those processes, because they are shielded from the s-process flow and r-process beta-decay chains. These nuclei are attributed to the p and rp process. For all those processes, current research in nuclear astrophysics addresses t… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1310.1632v1-abstract-full').style.display = 'inline'; document.getElementById('1310.1632v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1310.1632v1-abstract-full" style="display: none;"> The nucleosynthesis of elements beyond iron is dominated by neutron captures in the s and r processes. However, 32 stable, proton-rich isotopes cannot be formed during those processes, because they are shielded from the s-process flow and r-process beta-decay chains. These nuclei are attributed to the p and rp process. For all those processes, current research in nuclear astrophysics addresses the need for more precise reaction data involving radioactive isotopes. Depending on the particular reaction, direct or inverse kinematics, forward or time-reversed direction are investigated to determine or at least to constrain the desired reaction cross sections. The Facility for Antiproton and Ion Research (FAIR) will offer unique, unprecedented opportunities to investigate many of the important reactions. The high yield of radioactive isotopes, even far away from the valley of stability, allows the investigation of isotopes involved in processes as exotic as the r or rp processes. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1310.1632v1-abstract-full').style.display = 'none'; document.getElementById('1310.1632v1-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> 6 October, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 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">Invited Talk given at the Conference Nuclear Physice in Astrophysics VI (NPA6), Lisbon, Portugal, May 19-24 2013. To appear in the NPA6 Proceedings in Journal of Physics: Conference Series (JPCS)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Journal of Physics: Conference Series 665 (2016) 012044 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1308.1254">arXiv:1308.1254</a> <span> [<a href="https://arxiv.org/pdf/1308.1254">pdf</a>, <a href="https://arxiv.org/format/1308.1254">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.111.072501">10.1103/PhysRevLett.111.072501 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Mirror Energy Differences at Large Isospin Studied through Direct Two-Nucleon Knockout </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Davies%2C+P+J">P. J. Davies</a>, <a href="/search/nucl-ex?searchtype=author&query=Bentley%2C+M+A">M. A. Bentley</a>, <a href="/search/nucl-ex?searchtype=author&query=Henry%2C+T+W">T. W. Henry</a>, <a href="/search/nucl-ex?searchtype=author&query=Simpson%2C+E+C">E. C. Simpson</a>, <a href="/search/nucl-ex?searchtype=author&query=Gade%2C+A">A. Gade</a>, <a href="/search/nucl-ex?searchtype=author&query=Lenzi%2C+S+M">S. M. Lenzi</a>, <a href="/search/nucl-ex?searchtype=author&query=Baugher%2C+T">T. Baugher</a>, <a href="/search/nucl-ex?searchtype=author&query=Bazin%2C+D">D. Bazin</a>, <a href="/search/nucl-ex?searchtype=author&query=Berryman%2C+J+S">J. S. Berryman</a>, <a href="/search/nucl-ex?searchtype=author&query=Bruce%2C+A+M">A. M. Bruce</a>, <a href="/search/nucl-ex?searchtype=author&query=Diget%2C+C+A">C. Aa. Diget</a>, <a href="/search/nucl-ex?searchtype=author&query=Iwasaki%2C+H">H. Iwasaki</a>, <a href="/search/nucl-ex?searchtype=author&query=Lemasson%2C+A">A. Lemasson</a>, <a href="/search/nucl-ex?searchtype=author&query=McDaniel%2C+S">S. McDaniel</a>, <a href="/search/nucl-ex?searchtype=author&query=Napoli%2C+D+R">D. R. Napoli</a>, <a href="/search/nucl-ex?searchtype=author&query=Ratkiewicz%2C+A">A. Ratkiewicz</a>, <a href="/search/nucl-ex?searchtype=author&query=Scruton%2C+L">L. Scruton</a>, <a href="/search/nucl-ex?searchtype=author&query=Shore%2C+A">A. Shore</a>, <a href="/search/nucl-ex?searchtype=author&query=Stroberg%2C+R">R. Stroberg</a>, <a href="/search/nucl-ex?searchtype=author&query=Tostevin%2C+J+A">J. A. Tostevin</a>, <a href="/search/nucl-ex?searchtype=author&query=Weisshaar%2C+D">D. Weisshaar</a>, <a href="/search/nucl-ex?searchtype=author&query=Wimmer%2C+K">K. Wimmer</a>, <a href="/search/nucl-ex?searchtype=author&query=Winkler%2C+R">R. Winkler</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="1308.1254v1-abstract-short" style="display: inline;"> The first spectroscopy of excited states in 52Ni (Tz=2) and 51Co (Tz=-3/2) has been obtained using the highly selective two-neutron knockout reaction. Mirror energy differences between isobaric analogue states in these nuclei and their mirror partners are interpreted in terms of isospin nonconserving effects. A comparison between large scale shell-model calculations and data provides the most comp… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1308.1254v1-abstract-full').style.display = 'inline'; document.getElementById('1308.1254v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1308.1254v1-abstract-full" style="display: none;"> The first spectroscopy of excited states in 52Ni (Tz=2) and 51Co (Tz=-3/2) has been obtained using the highly selective two-neutron knockout reaction. Mirror energy differences between isobaric analogue states in these nuclei and their mirror partners are interpreted in terms of isospin nonconserving effects. A comparison between large scale shell-model calculations and data provides the most compelling evidence to date that both electromagnetic and an additional isospin nonconserving interactions for J=2 couplings, of unknown origin, are required to obtain good agreement. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1308.1254v1-abstract-full').style.display = 'none'; document.getElementById('1308.1254v1-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> 6 August, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 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">Accepted for publication in Physical Review Letters</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1304.2647">arXiv:1304.2647</a> <span> [<a href="https://arxiv.org/pdf/1304.2647">pdf</a>, <a href="https://arxiv.org/ps/1304.2647">ps</a>, <a href="https://arxiv.org/format/1304.2647">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.88.024605">10.1103/PhysRevC.88.024605 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Isotopic Yield Distributions of Transfer- and Fusion-Induced Fission from 238U+12C Reactions in Inverse Kinematics </p> <p class="authors"> <span class="search-hit">Authors:</span> <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=Delaune%2C+O">O. Delaune</a>, <a href="/search/nucl-ex?searchtype=author&query=Farget%2C+F">F. Farget</a>, <a href="/search/nucl-ex?searchtype=author&query=Derkx%2C+X">X. Derkx</a>, <a href="/search/nucl-ex?searchtype=author&query=Schmidt%2C+K+-">K. -H. Schmidt</a>, <a href="/search/nucl-ex?searchtype=author&query=Audouin%2C+L">L. Audouin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bacri%2C+C+-">C. -O. Bacri</a>, <a href="/search/nucl-ex?searchtype=author&query=Barreau%2C+G">G. Barreau</a>, <a href="/search/nucl-ex?searchtype=author&query=Benlliure%2C+J">J. Benlliure</a>, <a href="/search/nucl-ex?searchtype=author&query=Casarejos%2C+E">E. Casarejos</a>, <a href="/search/nucl-ex?searchtype=author&query=Chbihi%2C+A">A. Chbihi</a>, <a href="/search/nucl-ex?searchtype=author&query=Fernandez-Dominguez%2C+B">B. Fernandez-Dominguez</a>, <a href="/search/nucl-ex?searchtype=author&query=Gaudefroy%2C+L">L. Gaudefroy</a>, <a href="/search/nucl-ex?searchtype=author&query=Golabek%2C+C">C. Golabek</a>, <a href="/search/nucl-ex?searchtype=author&query=Jurado%2C+B">B. Jurado</a>, <a href="/search/nucl-ex?searchtype=author&query=Lemasson%2C+A">A. Lemasson</a>, <a href="/search/nucl-ex?searchtype=author&query=Navin%2C+A">A. Navin</a>, <a href="/search/nucl-ex?searchtype=author&query=Rejmund%2C+M">M. Rejmund</a>, <a href="/search/nucl-ex?searchtype=author&query=Roger%2C+T">T. Roger</a>, <a href="/search/nucl-ex?searchtype=author&query=Shrivastava%2C+A">A. Shrivastava</a>, <a href="/search/nucl-ex?searchtype=author&query=Schmitt%2C+C">C. Schmitt</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="1304.2647v1-abstract-short" style="display: inline;"> A novel method to access the complete identification in atomic number Z and mass A of fragments produced in low-energy fission of actinides is presented. This method, based on the use of multi- nucleon transfer and fusion reactions in inverse kinematics, is applied in this work to reactions between a 238U beam and a 12C target to produce and induce fission of moderately excited actinides. The fiss… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1304.2647v1-abstract-full').style.display = 'inline'; document.getElementById('1304.2647v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1304.2647v1-abstract-full" style="display: none;"> A novel method to access the complete identification in atomic number Z and mass A of fragments produced in low-energy fission of actinides is presented. This method, based on the use of multi- nucleon transfer and fusion reactions in inverse kinematics, is applied in this work to reactions between a 238U beam and a 12C target to produce and induce fission of moderately excited actinides. The fission fragments are detected and fully identified with the VAMOS spectrometer of GANIL, allowing the measurement of fragment yields of several hundreds of isotopes in a range between A ~ 80 and ~ 160, and from Z ~ 30 to ~ 64. For the first time, complete isotopic yield distributions of fragments from well-defined fissioning systems are available. Together with the precise measurement of the fragment emission angles and velocities, this technique gives further insight into the nuclear-fission process. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1304.2647v1-abstract-full').style.display = 'none'; document.getElementById('1304.2647v1-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 April, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 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">22 pages, 21 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/1212.3915">arXiv:1212.3915</a> <span> [<a href="https://arxiv.org/pdf/1212.3915">pdf</a>, <a href="https://arxiv.org/ps/1212.3915">ps</a>, <a href="https://arxiv.org/format/1212.3915">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/10.1016/j.physletb.2012.11.064">10.1016/j.physletb.2012.11.064 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Role of the cluster structure of $^7$Li in the dynamics of fragment capture </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Shrivastava%2C+A">A. Shrivastava</a>, <a href="/search/nucl-ex?searchtype=author&query=Navin%2C+A">A. Navin</a>, <a href="/search/nucl-ex?searchtype=author&query=Diaz-Torres%2C+A">A. Diaz-Torres</a>, <a href="/search/nucl-ex?searchtype=author&query=Nanal%2C+V">V. Nanal</a>, <a href="/search/nucl-ex?searchtype=author&query=Ramachandran%2C+K">K. Ramachandran</a>, <a href="/search/nucl-ex?searchtype=author&query=Rejmund%2C+M">M. Rejmund</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhattacharyya%2C+S">S. Bhattacharyya</a>, <a href="/search/nucl-ex?searchtype=author&query=Chatterjee%2C+A">A. Chatterjee</a>, <a href="/search/nucl-ex?searchtype=author&query=Kailas%2C+S">S. Kailas</a>, <a href="/search/nucl-ex?searchtype=author&query=Lemasson%2C+A">A. Lemasson</a>, <a href="/search/nucl-ex?searchtype=author&query=Palit%2C+R">R. Palit</a>, <a href="/search/nucl-ex?searchtype=author&query=Parkar%2C+V+V">V. V. Parkar</a>, <a href="/search/nucl-ex?searchtype=author&query=Pillay%2C+R+G">R. G. Pillay</a>, <a href="/search/nucl-ex?searchtype=author&query=Rout%2C+P+C">P. C. Rout</a>, <a href="/search/nucl-ex?searchtype=author&query=Sawant%2C+Y">Y. Sawant</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="1212.3915v1-abstract-short" style="display: inline;"> Exclusive measurements of prompt $纬$-rays from the heavy-residues with various light charged particles in the $^7$Li + $^{198}$Pt system, at an energy near the Coulomb barrier (E/$V_b$ $\sim$ 1.6) are reported. Recent dynamic classical trajectory calculations, constrained by the measured fusion, $伪$ and $t$ capture cross-sections have been used to explain the excitation energy dependence of the re… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1212.3915v1-abstract-full').style.display = 'inline'; document.getElementById('1212.3915v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1212.3915v1-abstract-full" style="display: none;"> Exclusive measurements of prompt $纬$-rays from the heavy-residues with various light charged particles in the $^7$Li + $^{198}$Pt system, at an energy near the Coulomb barrier (E/$V_b$ $\sim$ 1.6) are reported. Recent dynamic classical trajectory calculations, constrained by the measured fusion, $伪$ and $t$ capture cross-sections have been used to explain the excitation energy dependence of the residue cross-sections. These calculations distinctly illustrate a two step process, breakup followed by fusion in case of the capture of $t$ and $伪$ clusters; whereas for $^{6}$He + $p$ and $^{5}$He + $d$ configurations, massive transfer is inferred to be the dominant mechanism. The present work clearly demonstrates the role played by the cluster structures of $^7$Li in understanding the reaction dynamics at energies around the Coulomb barrier. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1212.3915v1-abstract-full').style.display = 'none'; document.getElementById('1212.3915v1-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> 17 December, 2012; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2012. </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, Accepted for publication in Phys. Letts. B</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1209.0816">arXiv:1209.0816</a> <span> [<a href="https://arxiv.org/pdf/1209.0816">pdf</a>, <a href="https://arxiv.org/format/1209.0816">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/10.1088/1742-6596/420/1/012119">10.1088/1742-6596/420/1/012119 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Isotopic fission fragment distributions as a deep probe to fusion-fission dynamics </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Farget%2C+F">F. Farget</a>, <a href="/search/nucl-ex?searchtype=author&query=Caamano%2C+M">M. Caamano</a>, <a href="/search/nucl-ex?searchtype=author&query=Delaune%2C+O">O. Delaune</a>, <a href="/search/nucl-ex?searchtype=author&query=Tarasov%2C+O+B">O. B. Tarasov</a>, <a href="/search/nucl-ex?searchtype=author&query=Derkx%2C+X">X. Derkx</a>, <a href="/search/nucl-ex?searchtype=author&query=Schmidt%2C+K+-">K. -H. Schmidt</a>, <a href="/search/nucl-ex?searchtype=author&query=Amthor%2C+A+M">A. M. Amthor</a>, <a href="/search/nucl-ex?searchtype=author&query=Audouin%2C+L">L. Audouin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bacri%2C+C+-">C. -O. Bacri</a>, <a href="/search/nucl-ex?searchtype=author&query=Barreau%2C+G">G. Barreau</a>, <a href="/search/nucl-ex?searchtype=author&query=Bastin%2C+B">B. Bastin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bazin%2C+D">D. Bazin</a>, <a href="/search/nucl-ex?searchtype=author&query=Blank%2C+B">B. Blank</a>, <a href="/search/nucl-ex?searchtype=author&query=Benlliure%2C+J">J. Benlliure</a>, <a href="/search/nucl-ex?searchtype=author&query=Caceres%2C+L">L. Caceres</a>, <a href="/search/nucl-ex?searchtype=author&query=Casarejos%2C+E">E. Casarejos</a>, <a href="/search/nucl-ex?searchtype=author&query=Chibihi%2C+A">A. Chibihi</a>, <a href="/search/nucl-ex?searchtype=author&query=Fernandez-Dominguez%2C+B">B. Fernandez-Dominguez</a>, <a href="/search/nucl-ex?searchtype=author&query=Gaudefroy%2C+L">L. Gaudefroy</a>, <a href="/search/nucl-ex?searchtype=author&query=Golabek%2C+C">C. Golabek</a>, <a href="/search/nucl-ex?searchtype=author&query=Grevy%2C+S">S. Grevy</a>, <a href="/search/nucl-ex?searchtype=author&query=Jurado%2C+B">B. Jurado</a>, <a href="/search/nucl-ex?searchtype=author&query=Kamalou%2C+O">O. Kamalou</a>, <a href="/search/nucl-ex?searchtype=author&query=Lemasson%2C+A">A. Lemasson</a>, <a href="/search/nucl-ex?searchtype=author&query=Lukyanov%2C+S">S. Lukyanov</a> , et al. (15 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="1209.0816v2-abstract-short" style="display: inline;"> During the fission process, the nucleus deforms and elongates up to the two fragments inception and their final separation at scission deformation. The evolution of the nucleus energy with deformation is determined by the macroscopic properties of the nucleus, and is also strongly influenced by the single-particle structure of the nucleus. The fission fragment distribution is a direct consequence… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1209.0816v2-abstract-full').style.display = 'inline'; document.getElementById('1209.0816v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1209.0816v2-abstract-full" style="display: none;"> During the fission process, the nucleus deforms and elongates up to the two fragments inception and their final separation at scission deformation. The evolution of the nucleus energy with deformation is determined by the macroscopic properties of the nucleus, and is also strongly influenced by the single-particle structure of the nucleus. The fission fragment distribution is a direct consequence of the deformation path the nucleus has encountered, and therefore is the most genuine experimental observation of the potential energy landscape of the deforming nucleus. Very asymmetric fusion-fission reactions at energy close to the Coulomb barrier, produce well-defined conditions of the compound nucleus formation, where processes such as quasi-fission, pre-equilibrium emission and incomplete fusion are negligible. In the same time, the excitation energy is sufficient to reduce significantly structural effects, and mostly the macroscopic part of the potential is responsible for the formation of the fission fragments. We use inverse kinematics combined with spectrometers to select and identify the fission fragments produced in $^{238}$U+$^{12}$C at a bombarding energy close to and well-above the Coulomb barrier. For the first time, the isotopic yields are measured over the complete atomic-number distribution, between Z=30 and Z=63. The experimental set-up also allows to identify transfer-induced reactions, which lead to low-energy fission where the nuclear shell structure shows a strong influence on the fission-fragment distributions. The resulting set of data gives the possibility to observe the fission fragment properties over a wide range of excitation energy, and they reveal the vanishing of the shell effects in the potential energy of the fissioning nucleus, as well as the influence of fission dynamics. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1209.0816v2-abstract-full').style.display = 'none'; document.getElementById('1209.0816v2-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, 2012; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 4 September, 2012; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2012. </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">Invited Plenary Talk given at the 11th International Conference on Nucleus-Nucleus Collisions (NN2012), San Antonio, Texas, USA, May 27-June 1, 2012. To appear in the NN2012 Proceedings in Journal of Physics: Conference Series (JPCS)</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1204.2279">arXiv:1204.2279</a> <span> [<a href="https://arxiv.org/pdf/1204.2279">pdf</a>, <a href="https://arxiv.org/ps/1204.2279">ps</a>, <a href="https://arxiv.org/format/1204.2279">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.85.041303">10.1103/PhysRevC.85.041303 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Observation of mutually enhanced collectivity in self-conjugate $^{76}_{38}$Sr$_{38}$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Lemasson%2C+A">A. Lemasson</a>, <a href="/search/nucl-ex?searchtype=author&query=Iwasaki%2C+H">H. Iwasaki</a>, <a href="/search/nucl-ex?searchtype=author&query=Morse%2C+C">C. Morse</a>, <a href="/search/nucl-ex?searchtype=author&query=Bazin%2C+D">D. Bazin</a>, <a href="/search/nucl-ex?searchtype=author&query=Baugher%2C+T">T. Baugher</a>, <a href="/search/nucl-ex?searchtype=author&query=Berryman%2C+J+S">J. S. Berryman</a>, <a href="/search/nucl-ex?searchtype=author&query=Dewald%2C+A">A. Dewald</a>, <a href="/search/nucl-ex?searchtype=author&query=Fransen%2C+C">C. Fransen</a>, <a href="/search/nucl-ex?searchtype=author&query=Gade%2C+A">A. Gade</a>, <a href="/search/nucl-ex?searchtype=author&query=McDaniel%2C+S">S. McDaniel</a>, <a href="/search/nucl-ex?searchtype=author&query=Nichols%2C+A">A. Nichols</a>, <a href="/search/nucl-ex?searchtype=author&query=Ratkiewicz%2C+A">A. Ratkiewicz</a>, <a href="/search/nucl-ex?searchtype=author&query=Stroberg%2C+S">S. Stroberg</a>, <a href="/search/nucl-ex?searchtype=author&query=Voss%2C+P">P. Voss</a>, <a href="/search/nucl-ex?searchtype=author&query=Wadsworth%2C+R">R. Wadsworth</a>, <a href="/search/nucl-ex?searchtype=author&query=Weisshaar%2C+D">D. Weisshaar</a>, <a href="/search/nucl-ex?searchtype=author&query=Wimmer%2C+K">K. Wimmer</a>, <a href="/search/nucl-ex?searchtype=author&query=Winkler%2C+R">R. Winkler</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="1204.2279v1-abstract-short" style="display: inline;"> The lifetimes of the first 2$^{+}$ states in the neutron-deficient $^{76,78}$Sr isotopes were measured using a unique combination of the $纬$-ray line-shape method and two-step nucleon exchange reactions at intermediate energies. The transition rates for the 2$^{+}$ states were determined to be $B$(E2;2$^{+}$$\to 0^{+}$) = 2220(270) e$^{2}$fm$^{4}$ for $^{76}$Sr and 1800(250) e$^{2}$fm$^{4}$ for… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1204.2279v1-abstract-full').style.display = 'inline'; document.getElementById('1204.2279v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1204.2279v1-abstract-full" style="display: none;"> The lifetimes of the first 2$^{+}$ states in the neutron-deficient $^{76,78}$Sr isotopes were measured using a unique combination of the $纬$-ray line-shape method and two-step nucleon exchange reactions at intermediate energies. The transition rates for the 2$^{+}$ states were determined to be $B$(E2;2$^{+}$$\to 0^{+}$) = 2220(270) e$^{2}$fm$^{4}$ for $^{76}$Sr and 1800(250) e$^{2}$fm$^{4}$ for $^{78}$Sr, corresponding to large deformation of $尾_2$ = 0.45(3) for $^{76}$Sr and 0.40(3) for $^{78}$Sr. The present data provide experimental evidence for mutually enhanced collectivity that occurs at $N$ = $Z$ = 38. The systematic behavior of the excitation energies and $B$(E2) values indicates a signature of shape coexistence in $^{76}$Sr, characterizing $^{76}$Sr as one of most deformed nuclei with an unusually reduced $E$(4$^{+}$)/$E$(2$^{+}$) ratio. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1204.2279v1-abstract-full').style.display = 'none'; document.getElementById('1204.2279v1-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 April, 2012; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2012. </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 for publication in Physical Review C Rapid Communication</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. C 85, 041303(R) (2012) </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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