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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/2501.17892">arXiv:2501.17892</a> <span> [<a href="https://arxiv.org/pdf/2501.17892">pdf</a>, <a href="https://arxiv.org/format/2501.17892">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> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Data Analysis, Statistics and Probability">physics.data-an</span> </div> </div> <p class="title is-5 mathjax"> Object Detection with Deep Learning for Rare Event Search in the GADGET II TPC </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Wheeler%2C+T">Tyler Wheeler</a>, <a href="/search/nucl-ex?searchtype=author&query=Ravishankar%2C+S">S. Ravishankar</a>, <a href="/search/nucl-ex?searchtype=author&query=Wrede%2C+C">C. Wrede</a>, <a href="/search/nucl-ex?searchtype=author&query=Andalib%2C+A">A. Andalib</a>, <a href="/search/nucl-ex?searchtype=author&query=Anthony%2C+A">A. Anthony</a>, <a href="/search/nucl-ex?searchtype=author&query=Ayyad%2C+Y">Y. Ayyad</a>, <a href="/search/nucl-ex?searchtype=author&query=Jain%2C+B">B. Jain</a>, <a href="/search/nucl-ex?searchtype=author&query=Jaros%2C+A">A. Jaros</a>, <a href="/search/nucl-ex?searchtype=author&query=Mahajan%2C+R">R. Mahajan</a>, <a href="/search/nucl-ex?searchtype=author&query=Schaedig%2C+L">L. Schaedig</a>, <a href="/search/nucl-ex?searchtype=author&query=Adams%2C+A">A. Adams</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahn%2C+S">S. Ahn</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=Bardayan%2C+D">D. Bardayan</a>, <a href="/search/nucl-ex?searchtype=author&query=Bazin%2C+D">D. Bazin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bosmpotinis%2C+K">K. Bosmpotinis</a>, <a href="/search/nucl-ex?searchtype=author&query=Budner%2C+T">T. Budner</a>, <a href="/search/nucl-ex?searchtype=author&query=Carmichael%2C+S+R">S. R. Carmichael</a>, <a href="/search/nucl-ex?searchtype=author&query=Cha%2C+S+M">S. M. Cha</a>, <a href="/search/nucl-ex?searchtype=author&query=Chen%2C+A">A. Chen</a>, <a href="/search/nucl-ex?searchtype=author&query=Chipps%2C+K+A">K. A. Chipps</a>, <a href="/search/nucl-ex?searchtype=author&query=Christie%2C+J+M">J. M. Christie</a>, <a href="/search/nucl-ex?searchtype=author&query=Cox%2C+I">I. Cox</a>, <a href="/search/nucl-ex?searchtype=author&query=Dopfer%2C+J">J. Dopfer</a>, <a href="/search/nucl-ex?searchtype=author&query=Friedman%2C+M">M. Friedman</a> , et al. (28 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="2501.17892v1-abstract-short" style="display: inline;"> In the pursuit of identifying rare two-particle events within the GADGET II Time Projection Chamber (TPC), this paper presents a comprehensive approach for leveraging Convolutional Neural Networks (CNNs) and various data processing methods. To address the inherent complexities of 3D TPC track reconstructions, the data is expressed in 2D projections and 1D quantities. This approach capitalizes on t… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2501.17892v1-abstract-full').style.display = 'inline'; document.getElementById('2501.17892v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2501.17892v1-abstract-full" style="display: none;"> In the pursuit of identifying rare two-particle events within the GADGET II Time Projection Chamber (TPC), this paper presents a comprehensive approach for leveraging Convolutional Neural Networks (CNNs) and various data processing methods. To address the inherent complexities of 3D TPC track reconstructions, the data is expressed in 2D projections and 1D quantities. This approach capitalizes on the diverse data modalities of the TPC, allowing for the efficient representation of the distinct features of the 3D events, with no loss in topology uniqueness. Additionally, it leverages the computational efficiency of 2D CNNs and benefits from the extensive availability of pre-trained models. Given the scarcity of real training data for the rare events of interest, simulated events are used to train the models to detect real events. To account for potential distribution shifts when predominantly depending on simulations, significant perturbations are embedded within the simulations. This produces a broad parameter space that works to account for potential physics parameter and detector response variations and uncertainties. These parameter-varied simulations are used to train sensitive 2D CNN object detectors. When combined with 1D histogram peak detection algorithms, this multi-modal detection framework is highly adept at identifying rare, two-particle events in data taken during experiment 21072 at the Facility for Rare Isotope Beams (FRIB), demonstrating a 100% recall for events of interest. We present the methods and outcomes of our investigation and discuss the potential future applications of these techniques. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2501.17892v1-abstract-full').style.display = 'none'; document.getElementById('2501.17892v1-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 January, 2025; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2025. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2412.12071">arXiv:2412.12071</a> <span> [<a href="https://arxiv.org/pdf/2412.12071">pdf</a>, <a href="https://arxiv.org/format/2412.12071">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"> The evidence of $N=16$ shell closure and $尾$-delayed neutron emission from $^{25}$F </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Peltier%2C+J+F">J. F. Peltier</a>, <a href="/search/nucl-ex?searchtype=author&query=Xu%2C+Z+Y">Z. Y. Xu</a>, <a href="/search/nucl-ex?searchtype=author&query=Cox%2C+I">I. Cox</a>, <a href="/search/nucl-ex?searchtype=author&query=Grzywacz%2C+R">R. Grzywacz</a>, <a href="/search/nucl-ex?searchtype=author&query=Lubna%2C+R+S">R. S. Lubna</a>, <a href="/search/nucl-ex?searchtype=author&query=Kitamura%2C+N">N. Kitamura</a>, <a href="/search/nucl-ex?searchtype=author&query=Neupane%2C+S">S. Neupane</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=Christie%2C+J">J. Christie</a>, <a href="/search/nucl-ex?searchtype=author&query=Doetsch%2C+A+A">A. A. Doetsch</a>, <a href="/search/nucl-ex?searchtype=author&query=Dyszel%2C+P">P. Dyszel</a>, <a href="/search/nucl-ex?searchtype=author&query=Gaballah%2C+T">T. Gaballah</a>, <a href="/search/nucl-ex?searchtype=author&query=King%2C+T+T">T. T. King</a>, <a href="/search/nucl-ex?searchtype=author&query=Kolos%2C+K">K. Kolos</a>, <a href="/search/nucl-ex?searchtype=author&query=Liddick%2C+S+N">S. N. Liddick</a>, <a href="/search/nucl-ex?searchtype=author&query=Madurga%2C+M">M. Madurga</a>, <a href="/search/nucl-ex?searchtype=author&query=Ogunbeku%2C+T+H">T. H. Ogunbeku</a>, <a href="/search/nucl-ex?searchtype=author&query=Sherrill%2C+B+M">B. M. Sherrill</a>, <a href="/search/nucl-ex?searchtype=author&query=Siegl%2C+K">K. Siegl</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="2412.12071v1-abstract-short" style="display: inline;"> We measured the $尾$-delayed neutron emission from $^{25}$F for the first time at the Facility for Rare Isotope Beams (FRIB). Using combined neutron and $纬$-ray detector systems of the FRIB Decay Station Initiator (FDSi), we observed $尾$-decay transitions populating neutron unbound states between 4.2 and 8 MeV in $^{25}$Ne. The experimental results led to the revision of the $尾$-decay half-life and… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2412.12071v1-abstract-full').style.display = 'inline'; document.getElementById('2412.12071v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2412.12071v1-abstract-full" style="display: none;"> We measured the $尾$-delayed neutron emission from $^{25}$F for the first time at the Facility for Rare Isotope Beams (FRIB). Using combined neutron and $纬$-ray detector systems of the FRIB Decay Station Initiator (FDSi), we observed $尾$-decay transitions populating neutron unbound states between 4.2 and 8 MeV in $^{25}$Ne. The experimental results led to the revision of the $尾$-decay half-life and $尾$-delayed neutron-emission probability of $^{25}$F. The $尾$-decay strength distribution of $^{25}$F extracted from the data agrees with the shell-model predictions using the USDB and SDPF-M effective interactions. This result indicates that the spherical neutron $N = 16$ shell gap persists in $^{25}$F and $^{25}$Ne. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2412.12071v1-abstract-full').style.display = 'none'; document.getElementById('2412.12071v1-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 December, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">7 pages</span> </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/2407.03503">arXiv:2407.03503</a> <span> [<a href="https://arxiv.org/pdf/2407.03503">pdf</a>, <a href="https://arxiv.org/format/2407.03503">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"> Suppressed Electric Quadrupole Collectivity in $^{49}$Ti </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Gray%2C+T+J">T. J. Gray</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=Benetti%2C+C">C. Benetti</a>, <a href="/search/nucl-ex?searchtype=author&query=Wibisono%2C+C">C. Wibisono</a>, <a href="/search/nucl-ex?searchtype=author&query=Baby%2C+L">L. Baby</a>, <a href="/search/nucl-ex?searchtype=author&query=Gargano%2C+A">A. Gargano</a>, <a href="/search/nucl-ex?searchtype=author&query=Miyagi%2C+T">T. Miyagi</a>, <a href="/search/nucl-ex?searchtype=author&query=Macchiavelli%2C+A+O">A. O. Macchiavelli</a>, <a href="/search/nucl-ex?searchtype=author&query=Stuchbery%2C+A+E">A. E. Stuchbery</a>, <a href="/search/nucl-ex?searchtype=author&query=Wood%2C+J+L">J. L. Wood</a>, <a href="/search/nucl-ex?searchtype=author&query=Ajayi%2C+S">S. Ajayi</a>, <a href="/search/nucl-ex?searchtype=author&query=Aragon%2C+J">J. Aragon</a>, <a href="/search/nucl-ex?searchtype=author&query=Asher%2C+B+W">B. W. Asher</a>, <a href="/search/nucl-ex?searchtype=author&query=Barber%2C+P">P. Barber</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhattacharya%2C+S">S. Bhattacharya</a>, <a href="/search/nucl-ex?searchtype=author&query=Boisseau%2C+R">R. Boisseau</a>, <a href="/search/nucl-ex?searchtype=author&query=Christie%2C+J+M">J. M. Christie</a>, <a href="/search/nucl-ex?searchtype=author&query=Conley%2C+A+L">A. L. Conley</a>, <a href="/search/nucl-ex?searchtype=author&query=De+Rosa%2C+P">P. De Rosa</a>, <a href="/search/nucl-ex?searchtype=author&query=Dowling%2C+D+T">D. T. Dowling</a>, <a href="/search/nucl-ex?searchtype=author&query=Esparza%2C+C">C. Esparza</a>, <a href="/search/nucl-ex?searchtype=author&query=Gibbons%2C+J">J. Gibbons</a>, <a href="/search/nucl-ex?searchtype=author&query=Hanselman%2C+K">K. Hanselman</a>, <a href="/search/nucl-ex?searchtype=author&query=Holt%2C+J+D">J. D. Holt</a>, <a href="/search/nucl-ex?searchtype=author&query=Lopez-Caceres%2C+S">S. Lopez-Caceres</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="2407.03503v1-abstract-short" style="display: inline;"> Single-step Coulomb excitation of $^{46,48,49,50}$Ti is presented. A complete set of $E2$ matrix elements for the quintuplet of states in $^{49}$Ti, centered on the $2^+$ core excitation, was measured for the first time. A total of nine $E2$ matrix elements are reported, four of which were previously unknown. $^{49}_{22}$Ti$_{27}$ shows a $20\%$ quenching in electric quadrupole transition strength… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2407.03503v1-abstract-full').style.display = 'inline'; document.getElementById('2407.03503v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2407.03503v1-abstract-full" style="display: none;"> Single-step Coulomb excitation of $^{46,48,49,50}$Ti is presented. A complete set of $E2$ matrix elements for the quintuplet of states in $^{49}$Ti, centered on the $2^+$ core excitation, was measured for the first time. A total of nine $E2$ matrix elements are reported, four of which were previously unknown. $^{49}_{22}$Ti$_{27}$ shows a $20\%$ quenching in electric quadrupole transition strength as compared to its semi-magic $^{50}_{22}$Ti$_{28}$ neighbour. This $20\%$ quenching, while empirically unprecedented, can be explained with a remarkably simple two-state mixing model, which is also consistent with other ground-state properties such as the magnetic dipole moment and electric quadrupole moment. A connection to nucleon transfer data and the quenching of single-particle strength is also demonstrated. The simplicity of the $^{49}$Ti-$^{50}$Ti pair (i.e., approximate single-$j$ $0f_{7/2}$ valence space and isolation of yrast states from non-yrast states) provides a unique opportunity to disentangle otherwise competing effects in the ground-state properties of atomic nuclei, the emergence of collectivity, and the role of proton-neutron interactions. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2407.03503v1-abstract-full').style.display = 'none'; document.getElementById('2407.03503v1-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 July, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">8 pages, 5 figures, accepted in Physics Letters 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/2306.14368">arXiv:2306.14368</a> <span> [<a href="https://arxiv.org/pdf/2306.14368">pdf</a>, <a href="https://arxiv.org/ps/2306.14368">ps</a>, <a href="https://arxiv.org/format/2306.14368">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"> Understanding Excitations in $^{59,61}$Co, $^{59}$Ni </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Ajayi%2C+S">Samuel Ajayi</a>, <a href="/search/nucl-ex?searchtype=author&query=Tripathi%2C+V">Vandana Tripathi</a>, <a href="/search/nucl-ex?searchtype=author&query=Rubino%2C+E">E. Rubino</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhattacharya%2C+S">Soumik Bhattacharya</a>, <a href="/search/nucl-ex?searchtype=author&query=Baby%2C+L+T">L. T. Baby</a>, <a href="/search/nucl-ex?searchtype=author&query=Lubna%2C+R+S">R. S. Lubna</a>, <a href="/search/nucl-ex?searchtype=author&query=Benetti%2C+C">C. Benetti</a>, <a href="/search/nucl-ex?searchtype=author&query=Wibisono%2C+C">Catur Wibisono</a>, <a href="/search/nucl-ex?searchtype=author&query=Wheeler%2C+M+B">MacMillan B. Wheeler</a>, <a href="/search/nucl-ex?searchtype=author&query=Tabor%2C+S+L">S. L. Tabor</a>, <a href="/search/nucl-ex?searchtype=author&query=Utsuno%2C+Y">Yutaka Utsuno</a>, <a href="/search/nucl-ex?searchtype=author&query=Shimizu%2C+N">Noritaka Shimizu</a>, <a href="/search/nucl-ex?searchtype=author&query=Allmond%2C+J+M">J. M. Allmond</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="2306.14368v2-abstract-short" style="display: inline;"> High spin states in $^{59}$Co ($Z=27$), $^{59}$Ni ($Z=28$) and $^{61}$Co have been populated by the fusion evaporation reactions, $^{48}$Ti($^{14}$C, p2n)$^{59}$Co, $^{48}$Ti($^{14}$C, 3n)$^{59}$Ni, and $^{50}$Ti($^{14}$C, p2n)$^{61}$Co. The 9 MV tandem accelerator at the John D Fox Laboratory, Florida State University (FSU) was used to accelerate the $^{14}$C beam and the de-exciting $纬$ rays wer… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2306.14368v2-abstract-full').style.display = 'inline'; document.getElementById('2306.14368v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2306.14368v2-abstract-full" style="display: none;"> High spin states in $^{59}$Co ($Z=27$), $^{59}$Ni ($Z=28$) and $^{61}$Co have been populated by the fusion evaporation reactions, $^{48}$Ti($^{14}$C, p2n)$^{59}$Co, $^{48}$Ti($^{14}$C, 3n)$^{59}$Ni, and $^{50}$Ti($^{14}$C, p2n)$^{61}$Co. The 9 MV tandem accelerator at the John D Fox Laboratory, Florida State University (FSU) was used to accelerate the $^{14}$C beam and the de-exciting $纬$ rays were detected by the FSU detector array consisting of six High Purity Germanium (HPGe) clover detectors, and three single crystals. Directional correlation of the $纬$ rays de-exciting oriented states (DCO ratios) and polarization asymmetry measurements helped to establish spin and parities of the excited states whenever possible. The level scheme of $^{59}$Co has been expanded with the inclusion of positive parity states up to 31/2$^+$ at around 11 MeV. The $^{59}$Ni positive parity states known from previous study were verified with modifications to some of the spins and parities. On the other hand, the negative parity states were extended to 31/2 at an excitation energy of 12 MeV. No new transition was observed for $^{61}$Co, but one of the major bands has been reassigned as consisting of positive parity states by reason of this study which is a candidate for magnetic rotation band. Cross shell excitations were observed in the three nuclei studied and the prominent role of excitation to g$_{9/2}$ orbital crossing the $N=40$ shell gap was established in relation to collective excitation in these nuclei by comparison with large-scale shell model calculations. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2306.14368v2-abstract-full').style.display = 'none'; document.getElementById('2306.14368v2-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, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 25 June, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2023. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2302.11607">arXiv:2302.11607</a> <span> [<a href="https://arxiv.org/pdf/2302.11607">pdf</a>, <a href="https://arxiv.org/format/2302.11607">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.130.242501">10.1103/PhysRevLett.130.242501 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Microsecond Isomer at the N=20 Island of Shape Inversion Observed at FRIB </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Gray%2C+T+J">T. J. Gray</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=Xu%2C+Z">Z. Xu</a>, <a href="/search/nucl-ex?searchtype=author&query=King%2C+T+T">T. T. King</a>, <a href="/search/nucl-ex?searchtype=author&query=Lubna%2C+R+S">R. S. Lubna</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=Tripathi%2C+V">V. Tripathi</a>, <a href="/search/nucl-ex?searchtype=author&query=Crider%2C+B+P">B. P. Crider</a>, <a href="/search/nucl-ex?searchtype=author&query=Grzywacz%2C+R">R. Grzywacz</a>, <a href="/search/nucl-ex?searchtype=author&query=Liddick%2C+S+N">S. N. Liddick</a>, <a href="/search/nucl-ex?searchtype=author&query=Macchiavelli%2C+A+O">A. O. Macchiavelli</a>, <a href="/search/nucl-ex?searchtype=author&query=Miyagi%2C+T">T. Miyagi</a>, <a href="/search/nucl-ex?searchtype=author&query=Poves%2C+A">A. Poves</a>, <a href="/search/nucl-ex?searchtype=author&query=Andalib%2C+A">A. Andalib</a>, <a href="/search/nucl-ex?searchtype=author&query=Argo%2C+E">E. Argo</a>, <a href="/search/nucl-ex?searchtype=author&query=Benetti%2C+C">C. Benetti</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhattacharya%2C+S">S. Bhattacharya</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=Carpenter%2C+M+P">M. P. Carpenter</a>, <a href="/search/nucl-ex?searchtype=author&query=Chan%2C+J">J. Chan</a>, <a href="/search/nucl-ex?searchtype=author&query=Chester%2C+A">A. Chester</a>, <a href="/search/nucl-ex?searchtype=author&query=Christie%2C+J">J. Christie</a>, <a href="/search/nucl-ex?searchtype=author&query=Clark%2C+B+R">B. R. Clark</a>, <a href="/search/nucl-ex?searchtype=author&query=Cox%2C+I">I. Cox</a>, <a href="/search/nucl-ex?searchtype=author&query=Doetsch%2C+A+A">A. A. Doetsch</a> , et al. (41 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="2302.11607v2-abstract-short" style="display: inline;"> Excited-state spectroscopy from the first Facility for Rare Isotope Beams (FRIB) experiment is reported. A 24(2)-$渭$s isomer was observed with the FRIB Decay Station initiator (FDSi) through a cascade of 224- and 401-keV $纬$ rays in coincidence with $^{32}\textrm{Na}$ nuclei. This is the only known microsecond isomer ($1{\text{ }渭\text{s}}\leq T_{1/2} < 1\text{ ms}$) in the region. This nucleus is… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2302.11607v2-abstract-full').style.display = 'inline'; document.getElementById('2302.11607v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2302.11607v2-abstract-full" style="display: none;"> Excited-state spectroscopy from the first Facility for Rare Isotope Beams (FRIB) experiment is reported. A 24(2)-$渭$s isomer was observed with the FRIB Decay Station initiator (FDSi) through a cascade of 224- and 401-keV $纬$ rays in coincidence with $^{32}\textrm{Na}$ nuclei. This is the only known microsecond isomer ($1{\text{ }渭\text{s}}\leq T_{1/2} < 1\text{ ms}$) in the region. This nucleus is at the heart of the $N=20$ island of shape inversion and is at the crossroads of spherical shell-model, deformed shell-model, and ab initio theories. It can be represented as the coupling of a proton hole and neutron particle to $^{32}\textrm{Mg}$, $^{32}\textrm{Mg}+蟺^{-1} + 谓^{+1}$. This odd-odd coupling and isomer formation provides a sensitive measure of the underlying shape degrees of freedom of $^{32}\textrm{Mg}$, where the onset of spherical-to-deformed shape inversion begins with a low-lying deformed $2^+$ state at 885 keV and a low-lying shape-coexisting $0_2^+$ state at 1058 keV. We suggest two possible explanations for the 625-keV isomer in $^{32}$Na: a $6^-$ spherical shape isomer that decays by $E2$ or a $0^+$ deformed spin isomer that decays by $M2$. The present results and calculations are most consistent with the latter, indicating that the low-lying states are dominated by deformation. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2302.11607v2-abstract-full').style.display = 'none'; document.getElementById('2302.11607v2-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> 26 April, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 22 February, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 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">7 pages, 5 figures, accepted by 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/2301.12002">arXiv:2301.12002</a> <span> [<a href="https://arxiv.org/pdf/2301.12002">pdf</a>, <a href="https://arxiv.org/format/2301.12002">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.109.L061301">10.1103/PhysRevC.109.L061301 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> New isomeric transition in $^{36}$Mg: Bridging the N=20 and N=28 islands of inversion </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Madurga%2C+M">M. Madurga</a>, <a href="/search/nucl-ex?searchtype=author&query=Christie%2C+J+M">J. M. Christie</a>, <a href="/search/nucl-ex?searchtype=author&query=Xu%2C+Z">Z. Xu</a>, <a href="/search/nucl-ex?searchtype=author&query=Grzywacz%2C+R">R. Grzywacz</a>, <a href="/search/nucl-ex?searchtype=author&query=Poves%2C+A">A. Poves</a>, <a href="/search/nucl-ex?searchtype=author&query=King%2C+T">T. King</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=Chester%2C+A">A. Chester</a>, <a href="/search/nucl-ex?searchtype=author&query=Cox%2C+I">I. Cox</a>, <a href="/search/nucl-ex?searchtype=author&query=Farr%2C+J">J. Farr</a>, <a href="/search/nucl-ex?searchtype=author&query=Fletcher%2C+I">I. Fletcher</a>, <a href="/search/nucl-ex?searchtype=author&query=Heideman%2C+J">J. Heideman</a>, <a href="/search/nucl-ex?searchtype=author&query=Hoskins%2C+D">D. Hoskins</a>, <a href="/search/nucl-ex?searchtype=author&query=Laminack%2C+A">A. Laminack</a>, <a href="/search/nucl-ex?searchtype=author&query=Liddick%2C+S">S. Liddick</a>, <a href="/search/nucl-ex?searchtype=author&query=Neupane%2C+S">S. Neupane</a>, <a href="/search/nucl-ex?searchtype=author&query=Richard%2C+A+L">A. L. Richard</a>, <a href="/search/nucl-ex?searchtype=author&query=Shimizu%2C+N">N. Shimizu</a>, <a href="/search/nucl-ex?searchtype=author&query=Shuai%2C+P">P. Shuai</a>, <a href="/search/nucl-ex?searchtype=author&query=Siegl%2C+K">K. Siegl</a>, <a href="/search/nucl-ex?searchtype=author&query=Utsuno%2C+Y">Y. Utsuno</a>, <a href="/search/nucl-ex?searchtype=author&query=Wagenknecht%2C+P">P. Wagenknecht</a>, <a href="/search/nucl-ex?searchtype=author&query=Yokoyama%2C+R">R. Yokoyama</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="2301.12002v3-abstract-short" style="display: inline;"> We observed a new isomeric gamma transition at 168 keV in $^{36}$Mg, with a half-life of T$_{1/2}$=[130-500]$(\pm40)(^{+800}_{-20})_{sys}$ ns. We propose that the observed transition de-excites a new 0$^+$ isomeric state and populates the previously known first 2$^+$ state. The existence of this isomer is consistent with the predictions of the large-scale shell model calculations of $^{36}$Mg usin… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2301.12002v3-abstract-full').style.display = 'inline'; document.getElementById('2301.12002v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2301.12002v3-abstract-full" style="display: none;"> We observed a new isomeric gamma transition at 168 keV in $^{36}$Mg, with a half-life of T$_{1/2}$=[130-500]$(\pm40)(^{+800}_{-20})_{sys}$ ns. We propose that the observed transition de-excites a new 0$^+$ isomeric state and populates the previously known first 2$^+$ state. The existence of this isomer is consistent with the predictions of the large-scale shell model calculations of $^{36}$Mg using the sdpf-u-mix interaction. The observed excitation energy of the second 0$^+$ state is caused by the small energy separation between two prolate-deformed configurations where the intruder configuration corresponds to two neutron excitations from the {\it sd} to the {\it pf} shell. Within this interpretation, $^{36}$Mg becomes the crossing point between nuclei in which ground state deformed/superdeformed configurations are caused by the dominance of N=20 intruders ($^{32,34}$Mg) and nuclei where deformed configurations are associated with N=28 intruders ($^{38}$Mg and beyond). We found the lack of three-body monopole corrections in other effective interactions results in a predominance of N=20 intruder configurations past $^{38}$Mg incompatible with our observation. We conclude that $^{36}$Mg bridges the N=20 and N=28 islands of inversion, forming the so-called Big Island of Deformation. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2301.12002v3-abstract-full').style.display = 'none'; document.getElementById('2301.12002v3-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 June, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 27 January, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2023. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">7 pages, 4 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. C 109, L061301 (2024) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2209.06298">arXiv:2209.06298</a> <span> [<a href="https://arxiv.org/pdf/2209.06298">pdf</a>, <a href="https://arxiv.org/format/2209.06298">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.2022.137446">10.1016/j.physletb.2022.137446 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> E2 Rotational Invariants of $0^+_1$ and $2^+_1$ states for $^{106}$Cd: the Emergence of Collective Rotation </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Gray%2C+T+J">T. J. Gray</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=Janssens%2C+R+V+F">R. V. F. Janssens</a>, <a href="/search/nucl-ex?searchtype=author&query=Korten%2C+W">W. Korten</a>, <a href="/search/nucl-ex?searchtype=author&query=Stuchbery%2C+A+E">A. E. Stuchbery</a>, <a href="/search/nucl-ex?searchtype=author&query=Wood%2C+J+L">J. L. Wood</a>, <a href="/search/nucl-ex?searchtype=author&query=Ayangeakaa%2C+A+D">A. D. Ayangeakaa</a>, <a href="/search/nucl-ex?searchtype=author&query=Bottoni%2C+S">S. Bottoni</a>, <a href="/search/nucl-ex?searchtype=author&query=Bucher%2C+B+M">B. M. Bucher</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=Carpenter%2C+M+P">M. P. Carpenter</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=David%2C+H">H. David</a>, <a href="/search/nucl-ex?searchtype=author&query=Doherty%2C+D">D. Doherty</a>, <a href="/search/nucl-ex?searchtype=author&query=Fallon%2C+P">P. Fallon</a>, <a href="/search/nucl-ex?searchtype=author&query=Febbraro%2C+M+T">M. T. Febbraro</a>, <a href="/search/nucl-ex?searchtype=author&query=Galindo-Uribarri%2C+A">A. Galindo-Uribarri</a>, <a href="/search/nucl-ex?searchtype=author&query=Gross%2C+C+J">C. J. Gross</a>, <a href="/search/nucl-ex?searchtype=author&query=Komorowska%2C+M">M. Komorowska</a>, <a href="/search/nucl-ex?searchtype=author&query=Kondev%2C+F+G">F. G. Kondev</a>, <a href="/search/nucl-ex?searchtype=author&query=Lauritsen%2C+T">T. Lauritsen</a>, <a href="/search/nucl-ex?searchtype=author&query=Macchiavelli%2C+A+O">A. O. Macchiavelli</a>, <a href="/search/nucl-ex?searchtype=author&query=Napiorkowsi%2C+P">P. Napiorkowsi</a>, <a href="/search/nucl-ex?searchtype=author&query=Padilla-Rodal%2C+E">E. Padilla-Rodal</a>, <a href="/search/nucl-ex?searchtype=author&query=Pain%2C+S+D">S. D. Pain</a> , et al. (7 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2209.06298v1-abstract-short" style="display: inline;"> The collective structure of $^{106}$Cd is elucidated by multi-step Coulomb excitation of a 3.849 MeV/$A$ beam of $^{106}$Cd on a 1.1 mg/cm$^2$ $^{208}$Pb target using GRETINA-CHICO2 at ATLAS. Fourteen $E2$ matrix elements were obtained. The nucleus $^{106}$Cd is a prime example of emergent collectivity that possesses a simple structure: it is free of complexity caused by shape coexistence and has… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2209.06298v1-abstract-full').style.display = 'inline'; document.getElementById('2209.06298v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2209.06298v1-abstract-full" style="display: none;"> The collective structure of $^{106}$Cd is elucidated by multi-step Coulomb excitation of a 3.849 MeV/$A$ beam of $^{106}$Cd on a 1.1 mg/cm$^2$ $^{208}$Pb target using GRETINA-CHICO2 at ATLAS. Fourteen $E2$ matrix elements were obtained. The nucleus $^{106}$Cd is a prime example of emergent collectivity that possesses a simple structure: it is free of complexity caused by shape coexistence and has a small, but collectively active number of valence nucleons. This work follows in a long and currently active quest to answer the fundamental question of the origin of nuclear collectivity and deformation, notably in the cadmium isotopes. The results are discussed in terms of phenomenological models, the shell model, and Kumar-Cline sums of $E2$ matrix elements. The ${\langle 0_2^+ ||E2||2_1^+ \rangle}$ matrix element is determined for the first time, providing a total, converged measure of the electric quadrupole strength, $\langle Q^2 \rangle$, of the first-excited $2_1^+$ level relative to the $0_1^+$ ground state, which does not show an increase as expected of harmonic and anharmonic vibrations. Strong evidence for triaxial shapes in weakly collective nuclei is indicated; collective vibrations are excluded. This is contrary to the only other cadmium result of this kind in $^{114}$Cd by C. Fahlander et al., Nucl. Phys. A485, 327 (1988), which is complicated by low-lying shape coexistence near midshell. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2209.06298v1-abstract-full').style.display = 'none'; document.getElementById('2209.06298v1-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, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 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">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/2208.05449">arXiv:2208.05449</a> <span> [<a href="https://arxiv.org/pdf/2208.05449">pdf</a>, <a href="https://arxiv.org/format/2208.05449">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.2022.167392">10.1016/j.nima.2022.167392 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> CLARION2-TRINITY: a Compton-suppressed HPGe and GAGG:Ce-Si-Si array for absolute cross-section measurements with heavy ions </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Gray%2C+T+J">T. J. Gray</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=Dowling%2C+D+T">D. T. Dowling</a>, <a href="/search/nucl-ex?searchtype=author&query=Febbraro%2C+M">M. Febbraro</a>, <a href="/search/nucl-ex?searchtype=author&query=King%2C+T+T">T. T. King</a>, <a href="/search/nucl-ex?searchtype=author&query=Pain%2C+S+D">S. D. Pain</a>, <a href="/search/nucl-ex?searchtype=author&query=Stracener%2C+D+W">D. W. Stracener</a>, <a href="/search/nucl-ex?searchtype=author&query=Ajayi%2C+S">S. Ajayi</a>, <a href="/search/nucl-ex?searchtype=author&query=Aragon%2C+J">J. Aragon</a>, <a href="/search/nucl-ex?searchtype=author&query=Baby%2C+L">L. Baby</a>, <a href="/search/nucl-ex?searchtype=author&query=Barber%2C+P">P. Barber</a>, <a href="/search/nucl-ex?searchtype=author&query=Benetti%2C+C">C. Benetti</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhattacharya%2C+S">S. Bhattacharya</a>, <a href="/search/nucl-ex?searchtype=author&query=Boisseau%2C+R">R. Boisseau</a>, <a href="/search/nucl-ex?searchtype=author&query=Gibbons%2C+J">J. Gibbons</a>, <a href="/search/nucl-ex?searchtype=author&query=Tabor%2C+S+L">S. L. Tabor</a>, <a href="/search/nucl-ex?searchtype=author&query=Tripathi%2C+V">V. Tripathi</a>, <a href="/search/nucl-ex?searchtype=author&query=Wibisono%2C+C">C. Wibisono</a>, <a href="/search/nucl-ex?searchtype=author&query=Wiedenhoever%2C+I">I. Wiedenhoever</a>, <a href="/search/nucl-ex?searchtype=author&query=Bignell%2C+L">L. Bignell</a>, <a href="/search/nucl-ex?searchtype=author&query=Gerathy%2C+M+S+M">M. S. M. Gerathy</a>, <a href="/search/nucl-ex?searchtype=author&query=Lane%2C+G">G. Lane</a>, <a href="/search/nucl-ex?searchtype=author&query=McKie%2C+L+J">L. J. McKie</a>, <a href="/search/nucl-ex?searchtype=author&query=Mitchell%2C+A+J">A. J. Mitchell</a>, <a href="/search/nucl-ex?searchtype=author&query=Pope%2C+J">J. Pope</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="2208.05449v1-abstract-short" style="display: inline;"> The design and performance of a new Compton-suppressed HPGe and charged-particle array, CLARION2-TRINITY, are described. The TRINITY charged-particle array is comprised of 64 Cerium-doped Gadolinium Aluminium Gallium Garnet (GAGG:Ce) crystals configured into five rings spanning 7-54 degrees, and two annular silicon detectors that can shadow or extend the angular coverage to backward angles with mi… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2208.05449v1-abstract-full').style.display = 'inline'; document.getElementById('2208.05449v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2208.05449v1-abstract-full" style="display: none;"> The design and performance of a new Compton-suppressed HPGe and charged-particle array, CLARION2-TRINITY, are described. The TRINITY charged-particle array is comprised of 64 Cerium-doped Gadolinium Aluminium Gallium Garnet (GAGG:Ce) crystals configured into five rings spanning 7-54 degrees, and two annular silicon detectors that can shadow or extend the angular coverage to backward angles with minimal $纬$-ray attenuation. GAGG:Ce is a non-hygroscopic, bright, and relatively fast scintillator with a light distribution well matched to SiPMs. Count rates up to 40 kHz per crystal are sustainable. Fundamental characteristics of GAGG:Ce are measured and presented, including light- and heavy-ion particle identification (PID) capability, pulse-height defects, radiation hardness, and emission spectra. The CLARION2 array consists of up to 16 Compton-suppressed HPGe Clover detectors ($\approx4\%$ efficiency at 1 MeV) configured into four rings (eight HPGe crystal rings) using a non-Archimedean geometry that suppresses back-to-back coincident 511-keV gamma rays. The entire array is instrumented with 100- and 500-MHz (14 bit) waveform digitizers which enable triggerless operation, pulse-shape discrimination, fast timing, and pileup correction. Finally, two examples of experimental data taken during the commissioning of the CLARION2-TRINITY system are given: a PID spectrum from $^{16}$O + $^{18}$O fusion-evaporation, and PID and Doppler-corrected $纬$-ray spectra from $^{48}$Ti + $^{12}$C Coulomb excitation. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2208.05449v1-abstract-full').style.display = 'none'; document.getElementById('2208.05449v1-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 August, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">14 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/2201.08890">arXiv:2201.08890</a> <span> [<a href="https://arxiv.org/pdf/2201.08890">pdf</a>, <a href="https://arxiv.org/format/2201.08890">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.105.024602">10.1103/PhysRevC.105.024602 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Neutron transfer reactions on the ground state and isomeric state of a 130Sn beam </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Jones%2C+K+L">K. L. Jones</a>, <a href="/search/nucl-ex?searchtype=author&query=Bey%2C+A">A. Bey</a>, <a href="/search/nucl-ex?searchtype=author&query=Burcher%2C+S">S. Burcher</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=Galindo-Uribarri%2C+A">A. Galindo-Uribarri</a>, <a href="/search/nucl-ex?searchtype=author&query=Radford%2C+D+C">D. C. Radford</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahn%2C+S">S. Ahn</a>, <a href="/search/nucl-ex?searchtype=author&query=Ayres%2C+A">A. Ayres</a>, <a href="/search/nucl-ex?searchtype=author&query=Bardayan%2C+1+D+W">1 D. W. Bardayan</a>, <a href="/search/nucl-ex?searchtype=author&query=Cizewski%2C+J+A">J. A. Cizewski</a>, <a href="/search/nucl-ex?searchtype=author&query=Ruiz%2C+R+F+G">R. F. Garcia Ruiz</a>, <a href="/search/nucl-ex?searchtype=author&query=Howard%2C+M+E">M. E. Howard</a>, <a href="/search/nucl-ex?searchtype=author&query=Kozub%2C+R+L">R. L. Kozub</a>, <a href="/search/nucl-ex?searchtype=author&query=Liang%2C+J+F">J. F. Liang</a>, <a href="/search/nucl-ex?searchtype=author&query=Manning%2C+B">B. Manning</a>, <a href="/search/nucl-ex?searchtype=author&query=Matos%2C+M">M. Matos</a>, <a href="/search/nucl-ex?searchtype=author&query=Nesaraja%2C+C+D">C. D. Nesaraja</a>, <a href="/search/nucl-ex?searchtype=author&query=O%27Malley%2C+P+D">P. D. O'Malley</a>, <a href="/search/nucl-ex?searchtype=author&query=Padilla-Rodal%2C+E">E. Padilla-Rodal</a>, <a href="/search/nucl-ex?searchtype=author&query=Pain%2C+S+D">S. D. Pain</a>, <a href="/search/nucl-ex?searchtype=author&query=Pittman%2C+S+T">S. T. Pittman</a>, <a href="/search/nucl-ex?searchtype=author&query=Ratkiewicz%2C+A">A. Ratkiewicz</a>, <a href="/search/nucl-ex?searchtype=author&query=Schmitt%2C+K+T">K. T. Schmitt</a>, <a href="/search/nucl-ex?searchtype=author&query=Smith%2C+M+S">M. S. Smith</a>, <a href="/search/nucl-ex?searchtype=author&query=Stracener%2C+D+W">D. W. Stracener</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="2201.08890v1-abstract-short" style="display: inline;"> The structure of nuclei around the neutron-rich nucleus 132Sn is of particular interest due to the vicinity of the Z = 50 and N = 82 shell closures and the r-process nucleosynthetic path. Four states in 131Sn with a strong single-particle-like component have previously been studied via the (d,p) reaction, with limited excitation energy resolution. The 130Sn(9Be,8Be)131Sn and 130Sn(13C,12C)131Sn si… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2201.08890v1-abstract-full').style.display = 'inline'; document.getElementById('2201.08890v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2201.08890v1-abstract-full" style="display: none;"> The structure of nuclei around the neutron-rich nucleus 132Sn is of particular interest due to the vicinity of the Z = 50 and N = 82 shell closures and the r-process nucleosynthetic path. Four states in 131Sn with a strong single-particle-like component have previously been studied via the (d,p) reaction, with limited excitation energy resolution. The 130Sn(9Be,8Be)131Sn and 130Sn(13C,12C)131Sn single-neutron transfer reactions were performed in inverse kinematics at the Holifield Radioactive Ion Beam Facility using particle-gamma coincidence spectroscopy. The uncertainties in the energies of the single-particle-like states have been reduced by more than an order of magnitude using the energies of gamma rays. The previous tentative Jpi values have been confirmed. Decays from high-spin states in 131Sn have been observed following transfer on the isomeric component of the 130Sn beam. The improved energies and confirmed spin-parities of the p-wave states important to the r-process lead to direct-semidirect cross-sections for neutron capture on the ground state of 130Sn at 30 keV that are in agreement with previous analyses. A similar assessment of the impact of neutron-transfer on the isomer would require significant nuclear structure and reaction theory input. There are few measurements of transfer reaction on isomers, and this is the first on an isomer in the 132Sn region. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2201.08890v1-abstract-full').style.display = 'none'; document.getElementById('2201.08890v1-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 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">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/2201.05592">arXiv:2201.05592</a> <span> [<a href="https://arxiv.org/pdf/2201.05592">pdf</a>, <a href="https://arxiv.org/format/2201.05592">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/10.1140/epja/s10050-022-00755-1">10.1140/epja/s10050-022-00755-1 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Multiparticle-hole excitations in nuclei near N = Z = 20: $^{41}$K </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Rubino%2C+E">E. Rubino</a>, <a href="/search/nucl-ex?searchtype=author&query=Tabor%2C+S+L">S. L. Tabor</a>, <a href="/search/nucl-ex?searchtype=author&query=Tripathi%2C+V">Vandana Tripathi</a>, <a href="/search/nucl-ex?searchtype=author&query=Lubna%2C+R+S">R. S. Lubna</a>, <a href="/search/nucl-ex?searchtype=author&query=Abromeit%2C+B">B. Abromeit</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=Baby%2C+L+T">L. T. Baby</a>, <a href="/search/nucl-ex?searchtype=author&query=Caussyn%2C+D+D">D. D. Caussyn</a>, <a href="/search/nucl-ex?searchtype=author&query=Kravvaris%2C+K">K. Kravvaris</a>, <a href="/search/nucl-ex?searchtype=author&query=Volya%2C+A">A. Volya</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="2201.05592v1-abstract-short" style="display: inline;"> This experimental study of high-spin structure near N = Z = 20 nuclei was focused on $^{41}$K, but will also mention three newly observed $纬$ transitions in $^{41}$Ca observed in the same reaction. High-spin states were populated using the $^{26}$Mg($^{18}$O, $p2n纬$)$^{41}$K and $^{26}$Mg($^{18}$O, $3n纬$)$^{41}$Ca reactions. The experiment was carried out at an incident beam energy of 50 MeV at th… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2201.05592v1-abstract-full').style.display = 'inline'; document.getElementById('2201.05592v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2201.05592v1-abstract-full" style="display: none;"> This experimental study of high-spin structure near N = Z = 20 nuclei was focused on $^{41}$K, but will also mention three newly observed $纬$ transitions in $^{41}$Ca observed in the same reaction. High-spin states were populated using the $^{26}$Mg($^{18}$O, $p2n纬$)$^{41}$K and $^{26}$Mg($^{18}$O, $3n纬$)$^{41}$Ca reactions. The experiment was carried out at an incident beam energy of 50 MeV at the Florida State University (FSU) John D. Fox Superconducting Linear Accelerator Laboratory and used the FSU high-purity germanium detector array. The $^{41}$K level scheme was extended to 12325 keV, possibly with J$^蟺$ = 25/2$^-$ or 27/2$^+$, by means of 25 new transitions and that of $^{41}$Ca to 9916 keV. Linear polarization and a measure of angular distribution results are also reported and used to provide information on the spins and parities of several states in the $^{41}$K decay scheme. The results have been compared to the $spsdpf$ cross-shell FSU shell model interaction calculations. The theoretical results from configurations involving no or one additional nucleon promoted from the $sd$ to the $fp$ shell agree relatively well with the energies of known states, while those that involve multi-particle excitations paint an interesting and complex picture of interplay between single-particle excitations, collective pairing, and deformation. This presents an interesting challenge for future theory. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2201.05592v1-abstract-full').style.display = 'none'; document.getElementById('2201.05592v1-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 January, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2022. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2102.03996">arXiv:2102.03996</a> <span> [<a href="https://arxiv.org/pdf/2102.03996">pdf</a>, <a href="https://arxiv.org/format/2102.03996">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.103.024323">10.1103/PhysRevC.103.024323 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Ground-state and decay properties of neutron-rich 106Nb </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Mitchell%2C+A+J">A. J. Mitchell</a>, <a href="/search/nucl-ex?searchtype=author&query=Orford%2C+R">R. Orford</a>, <a href="/search/nucl-ex?searchtype=author&query=Lane%2C+G+J">G. J. Lane</a>, <a href="/search/nucl-ex?searchtype=author&query=Lister%2C+C+J">C. J. Lister</a>, <a href="/search/nucl-ex?searchtype=author&query=Copp%2C+P">P. Copp</a>, <a href="/search/nucl-ex?searchtype=author&query=Clark%2C+J+A">J. A. Clark</a>, <a href="/search/nucl-ex?searchtype=author&query=Savard%2C+G">G. Savard</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=Ayangeakaa%2C+A+D">A. D. Ayangeakaa</a>, <a href="/search/nucl-ex?searchtype=author&query=Bottoni%2C+S">S. Bottoni</a>, <a href="/search/nucl-ex?searchtype=author&query=Carpenter%2C+M+P">M. P. Carpenter</a>, <a href="/search/nucl-ex?searchtype=author&query=Chowdhury%2C+P">P. Chowdhury</a>, <a href="/search/nucl-ex?searchtype=author&query=Gorelov%2C+D+A">D. A. Gorelov</a>, <a href="/search/nucl-ex?searchtype=author&query=Janssens%2C+R+V+F">R. V. F. Janssens</a>, <a href="/search/nucl-ex?searchtype=author&query=Kondev%2C+F+G">F. G. Kondev</a>, <a href="/search/nucl-ex?searchtype=author&query=Patel%2C+U">U. Patel</a>, <a href="/search/nucl-ex?searchtype=author&query=Seweryniak%2C+D">D. Seweryniak</a>, <a href="/search/nucl-ex?searchtype=author&query=Smith%2C+M+L">M. L. Smith</a>, <a href="/search/nucl-ex?searchtype=author&query=Zhong%2C+Y+Y">Y. Y. Zhong</a>, <a href="/search/nucl-ex?searchtype=author&query=Zhu%2C+S">S. 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="2102.03996v1-abstract-short" style="display: inline;"> The ground-state properties of neutron-rich 106Nb and its beta decay into 106Mo have been studied using the CARIBU radioactive-ion-beam facility at Argonne National Laboratory. Niobium-106 ions were extracted from a 252Cf fission source and mass separated before being delivered as low-energy beams to the Canadian Penning Trap, as well as the X-Array and SATURN beta-decay-spectroscopy station. The… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2102.03996v1-abstract-full').style.display = 'inline'; document.getElementById('2102.03996v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2102.03996v1-abstract-full" style="display: none;"> The ground-state properties of neutron-rich 106Nb and its beta decay into 106Mo have been studied using the CARIBU radioactive-ion-beam facility at Argonne National Laboratory. Niobium-106 ions were extracted from a 252Cf fission source and mass separated before being delivered as low-energy beams to the Canadian Penning Trap, as well as the X-Array and SATURN beta-decay-spectroscopy station. The measured 106Nb ground-state mass excess of -66202.0(13) keV is consistent with a recent measurement but has three times better precision; this work also rules out the existence of a second long-lived, beta-decaying state in 106Nb above 5 keV in excitation energy. The decay half-life of 106Nb was measured to be 1.097(21) s, which is 8% longer than the adopted value. The level scheme of the decay progeny, 106Mo, has been expanded up to approximately 4 MeV. The distribution of decay strength and considerable population of excited states in 106Mo of J >= 3 emphasises the need to revise the adopted Jpi = 1- ground-state spin-parity assignment of 106Nb; it is more likely to be J => 3. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2102.03996v1-abstract-full').style.display = 'none'; document.getElementById('2102.03996v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 7 February, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 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">16 pages, 9 figures, accepted in Physical Review C (02/02/2021)</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2005.04706">arXiv:2005.04706</a> <span> [<a href="https://arxiv.org/pdf/2005.04706">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Theory">nucl-th</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevC.91.034330">10.1103/PhysRevC.91.034330 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Observation of $纬$-vibrations and alignments built on non-ground-state configurations in 156Dy </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Majola%2C+S+N+T">S. N. T. Majola</a>, <a href="/search/nucl-ex?searchtype=author&query=Hartley%2C+D+J">D. J. Hartley</a>, <a href="/search/nucl-ex?searchtype=author&query=Riedinger%2C+L+L">L. L. Riedinger</a>, <a href="/search/nucl-ex?searchtype=author&query=Sharpey-Schafer%2C+J+F">J. F. Sharpey-Schafer</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=Beausang%2C+C">C. Beausang</a>, <a href="/search/nucl-ex?searchtype=author&query=Carpenter%2C+M+P">M. P. Carpenter</a>, <a href="/search/nucl-ex?searchtype=author&query=Chiara%2C+C+J">C. J. Chiara</a>, <a href="/search/nucl-ex?searchtype=author&query=Cooper%2C+N">N. Cooper</a>, <a href="/search/nucl-ex?searchtype=author&query=Curien%2C+D">D. Curien</a>, <a href="/search/nucl-ex?searchtype=author&query=Gall%2C+B+J+P">B. J. P. Gall</a>, <a href="/search/nucl-ex?searchtype=author&query=Garrett%2C+P+E">P. E. Garrett</a>, <a href="/search/nucl-ex?searchtype=author&query=Janssens%2C+R+V+F">R. V. F. Janssens</a>, <a href="/search/nucl-ex?searchtype=author&query=Kondev%2C+F+G">F. G. Kondev</a>, <a href="/search/nucl-ex?searchtype=author&query=Kulp%2C+W+D">W. D. Kulp</a>, <a href="/search/nucl-ex?searchtype=author&query=Lauritsen%2C+T">T. Lauritsen</a>, <a href="/search/nucl-ex?searchtype=author&query=McCutchan%2C+E+A">E. A. McCutchan</a>, <a href="/search/nucl-ex?searchtype=author&query=Miller%2C+D">D. Miller</a>, <a href="/search/nucl-ex?searchtype=author&query=Piot%2C+J">J. Piot</a>, <a href="/search/nucl-ex?searchtype=author&query=Redon%2C+N">N. Redon</a>, <a href="/search/nucl-ex?searchtype=author&query=Riley%2C+M+A">M. A. Riley</a>, <a href="/search/nucl-ex?searchtype=author&query=Simpson%2C+J">J. Simpson</a>, <a href="/search/nucl-ex?searchtype=author&query=Stefanescu%2C+I">I. Stefanescu</a>, <a href="/search/nucl-ex?searchtype=author&query=Werner%2C+V">V. Werner</a>, <a href="/search/nucl-ex?searchtype=author&query=Wang%2C+X">X. Wang</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="2005.04706v1-abstract-short" style="display: inline;"> The exact nature of the lowest $K^蟺=2_纬^+$ rotational bands in all deformed nuclei remains obscure. Traditionally they are assumed to be collective vibrations of the nuclear shape in the $纬$ degree of freedom perpendicular to the nuclear symmetry axis. Very few such $纬$-bands have been traced past the usual back-bending rotational alignments of high-j nucleons. We have investigated the structure o… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2005.04706v1-abstract-full').style.display = 'inline'; document.getElementById('2005.04706v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2005.04706v1-abstract-full" style="display: none;"> The exact nature of the lowest $K^蟺=2_纬^+$ rotational bands in all deformed nuclei remains obscure. Traditionally they are assumed to be collective vibrations of the nuclear shape in the $纬$ degree of freedom perpendicular to the nuclear symmetry axis. Very few such $纬$-bands have been traced past the usual back-bending rotational alignments of high-j nucleons. We have investigated the structure of positive-parity bands in the N=90 nucleus 156Dy, using the 148Nd(12C,4n)156Dy reaction at 65 MeV, observing the resulting $纬$-ray transitions with the Gammasphere array. The even- and odd-spin members of the $K^蟺=2_纬^+$ $纬$-band are observed to 32+ and 31+ respectively. This rotational band faithfully tracks the ground-state configuration to the highest spins. The members of a possible $纬$-vibration built on the aligned yrast S-band are observed to spins 28+ and 27+. An even-spin positive-parity band, observed to spin 24+, is a candidate for an aligned S-band built on the seniority-zero configuration of the $0_2^+$ state at 676 keV. The crossing of this band with the $0_2^+$ band is at $\hbar蠅$= 0.28(1) MeV and is consistent with the configuration of the $0_2^+$ band not producing any blocking of the monopole pairing. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2005.04706v1-abstract-full').style.display = 'none'; document.getElementById('2005.04706v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 10 May, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Published in Physics Review 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 91, 034330 (2015) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2005.04699">arXiv:2005.04699</a> <span> [<a href="https://arxiv.org/pdf/2005.04699">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Theory">nucl-th</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevC.101.044312">10.1103/PhysRevC.101.044312 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> First candidates for 纬 vibrational bands built on the [505]11/2- neutron orbital in odd-A Dy isotopes </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Majola%2C+S+N+T">S. N. T. Majola</a>, <a href="/search/nucl-ex?searchtype=author&query=Sithole%2C+M+A">M. A. Sithole</a>, <a href="/search/nucl-ex?searchtype=author&query=Mdletshe%2C+L">L. Mdletshe</a>, <a href="/search/nucl-ex?searchtype=author&query=Hartley%2C+D">D. Hartley</a>, <a href="/search/nucl-ex?searchtype=author&query=Timar%2C+J">J. Timar</a>, <a href="/search/nucl-ex?searchtype=author&query=Nyako%2C+B+M">B. M. Nyako</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=Bark%2C+R+A">R. A. Bark</a>, <a href="/search/nucl-ex?searchtype=author&query=Beausang%2C+C">C. Beausang</a>, <a href="/search/nucl-ex?searchtype=author&query=Bianco%2C+L">L. Bianco</a>, <a href="/search/nucl-ex?searchtype=author&query=Bucher%2C+T+D">T. D. Bucher</a>, <a href="/search/nucl-ex?searchtype=author&query=Bvumbi%2C+S+P">S. P. Bvumbi</a>, <a href="/search/nucl-ex?searchtype=author&query=Carpenter%2C+M+P">M. P. Carpenter</a>, <a href="/search/nucl-ex?searchtype=author&query=Chiara%2C+C+J">C. J. Chiara</a>, <a href="/search/nucl-ex?searchtype=author&query=Cooper%2C+N">N. Cooper</a>, <a href="/search/nucl-ex?searchtype=author&query=Cullen%2C+D+M">D. M. Cullen</a>, <a href="/search/nucl-ex?searchtype=author&query=Curien%2C+D">D. Curien</a>, <a href="/search/nucl-ex?searchtype=author&query=Dinoko%2C+T+S">T. S. Dinoko</a>, <a href="/search/nucl-ex?searchtype=author&query=Gall%2C+B+J+P">B. J. P. Gall</a>, <a href="/search/nucl-ex?searchtype=author&query=Garrett%2C+P+E">P. E. Garrett</a>, <a href="/search/nucl-ex?searchtype=author&query=Greenlees%2C+P+T">P. T. Greenlees</a>, <a href="/search/nucl-ex?searchtype=author&query=Hirvonen%2C+J">J. Hirvonen</a>, <a href="/search/nucl-ex?searchtype=author&query=Jakobsson%2C+U">U. Jakobsson</a>, <a href="/search/nucl-ex?searchtype=author&query=Jones%2C+P+M">P. M. Jones</a>, <a href="/search/nucl-ex?searchtype=author&query=Julin%2C+R">R. Julin</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="2005.04699v1-abstract-short" style="display: inline;"> Rotational structures have been measured using the Jurogam II and GAMMASPHERE arrays at low spin following the 155Gd(伪,2n)157Dy and 148Nd(12C, 5n)155Dy reactions at 25 and 65 MeV, respectively. We report high-K bands, which are conjectured to be the first candidates of a K蟺= 2+ 纬 vibrational band, built on the [505]11/2- neutron orbital, in both odd-A 155, 157Dy isotopes. The coupling of the first… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2005.04699v1-abstract-full').style.display = 'inline'; document.getElementById('2005.04699v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2005.04699v1-abstract-full" style="display: none;"> Rotational structures have been measured using the Jurogam II and GAMMASPHERE arrays at low spin following the 155Gd(伪,2n)157Dy and 148Nd(12C, 5n)155Dy reactions at 25 and 65 MeV, respectively. We report high-K bands, which are conjectured to be the first candidates of a K蟺= 2+ 纬 vibrational band, built on the [505]11/2- neutron orbital, in both odd-A 155, 157Dy isotopes. The coupling of the first excited K=0+ states or the so-called \b{eta} vibrational bands at 661 and 676 keV in 154Dy and 156Dy to the [505]11/2- orbital, to produce a K蟺=11/2- band, was not observed in both 155Dy and 157Dy, respectively. The implication of these findings on the interpretation of the first excited 0+ states in the core nuclei 154Dy and 156Dy are also discussed. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2005.04699v1-abstract-full').style.display = 'none'; document.getElementById('2005.04699v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 10 May, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Published in Physical 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 101, 044312 (2020) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2003.04128">arXiv:2003.04128</a> <span> [<a href="https://arxiv.org/pdf/2003.04128">pdf</a>, <a href="https://arxiv.org/format/2003.04128">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/10.1109/TNS.2020.3043671">10.1109/TNS.2020.3043671 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> ADC Nonlinearity Correction for the MAJORANA DEMONSTRATOR </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Abgrall%2C+N">N. Abgrall</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=Arnquist%2C+I+J">I. J. Arnquist</a>, <a href="/search/nucl-ex?searchtype=author&query=Avignone%2C+F+T">F. T. Avignone III</a>, <a href="/search/nucl-ex?searchtype=author&query=Barabash%2C+A+S">A. S. Barabash</a>, <a href="/search/nucl-ex?searchtype=author&query=Barton%2C+C+J">C. J. Barton</a>, <a href="/search/nucl-ex?searchtype=author&query=Bertrand%2C+F+E">F. E. Bertrand</a>, <a href="/search/nucl-ex?searchtype=author&query=Bos%2C+B">B. Bos</a>, <a href="/search/nucl-ex?searchtype=author&query=Busch%2C+M">M. Busch</a>, <a href="/search/nucl-ex?searchtype=author&query=Buuck%2C+M">M. Buuck</a>, <a href="/search/nucl-ex?searchtype=author&query=Caldwell%2C+T+S">T. S. Caldwell</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=Chan%2C+Y">Y-D. Chan</a>, <a href="/search/nucl-ex?searchtype=author&query=Christofferson%2C+C+D">C. D. Christofferson</a>, <a href="/search/nucl-ex?searchtype=author&query=Chu%2C+P+-">P. -H. Chu</a>, <a href="/search/nucl-ex?searchtype=author&query=Clark%2C+M+L">M. L. Clark</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=Cuesta%2C+C">C. Cuesta</a>, <a href="/search/nucl-ex?searchtype=author&query=Detwiler%2C+J+A">J. A. Detwiler</a>, <a href="/search/nucl-ex?searchtype=author&query=Drobizhev%2C+A">A. Drobizhev</a>, <a href="/search/nucl-ex?searchtype=author&query=Edwins%2C+D+W">D. W. Edwins</a>, <a href="/search/nucl-ex?searchtype=author&query=Efremenko%2C+Y">Yu. Efremenko</a>, <a href="/search/nucl-ex?searchtype=author&query=Ejiri%2C+H">H. Ejiri</a>, <a href="/search/nucl-ex?searchtype=author&query=Elliott%2C+S+R">S. R. Elliott</a>, <a href="/search/nucl-ex?searchtype=author&query=Gilliss%2C+T">T. Gilliss</a> , et al. (42 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="2003.04128v4-abstract-short" style="display: inline;"> Imperfections in analog-to-digital conversion (ADC) cannot be ignored when signal digitization requirements demand both wide dynamic range and high resolution, as is the case for the Majorana Demonstrator 76Ge neutrinoless double beta decay search. Enabling the experiment's high-resolution spectral analysis and efficient pulse shape discrimination required careful measurement and correction of ADC… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2003.04128v4-abstract-full').style.display = 'inline'; document.getElementById('2003.04128v4-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2003.04128v4-abstract-full" style="display: none;"> Imperfections in analog-to-digital conversion (ADC) cannot be ignored when signal digitization requirements demand both wide dynamic range and high resolution, as is the case for the Majorana Demonstrator 76Ge neutrinoless double beta decay search. Enabling the experiment's high-resolution spectral analysis and efficient pulse shape discrimination required careful measurement and correction of ADC nonlinearites. A simple measurement protocol was developed that did not require sophisticated equipment or lengthy data taking campaigns. A slope-dependent hysteresis was observed and characterized. A correction applied to digitized waveforms prior to signal processing reduced the differential and integral nonlinearites by an order of magnitude, eliminating these as dominant contributions to the systematic energy uncertainty at the double-beta decay Q value. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2003.04128v4-abstract-full').style.display = 'none'; document.getElementById('2003.04128v4-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 24 March, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 4 March, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LA-UR-20-21663 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> IEEE Transactions on Nuclear Science, vol. 68, no. 3, pp. 359-367, March 2021 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2002.04777">arXiv:2002.04777</a> <span> [<a href="https://arxiv.org/pdf/2002.04777">pdf</a>, <a href="https://arxiv.org/ps/2002.04777">ps</a>, <a href="https://arxiv.org/format/2002.04777">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1051/epjconf/202023204003">10.1051/epjconf/202023204003 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Emerging nuclear collectivity in $^{124-130}$Te </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Coombes%2C+B+J">B. J. Coombes</a>, <a href="/search/nucl-ex?searchtype=author&query=Stuchbery%2C+A+E">A. E. Stuchbery</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=Gargano%2C+A">A. Gargano</a>, <a href="/search/nucl-ex?searchtype=author&query=Dowie%2C+J+T+H">J. T. H. Dowie</a>, <a href="/search/nucl-ex?searchtype=author&query=Georgiev%2C+G">G. Georgiev</a>, <a href="/search/nucl-ex?searchtype=author&query=Gerathy%2C+M+S+M">M. S. M. Gerathy</a>, <a href="/search/nucl-ex?searchtype=author&query=Gray%2C+T+J">T. J. Gray</a>, <a href="/search/nucl-ex?searchtype=author&query=Kib%C3%A9di%2C+T">T. Kib茅di</a>, <a href="/search/nucl-ex?searchtype=author&query=Lane%2C+G+J">G. J. Lane</a>, <a href="/search/nucl-ex?searchtype=author&query=McCormick%2C+B+P">B. P. McCormick</a>, <a href="/search/nucl-ex?searchtype=author&query=Mitchell%2C+A+J">A. J. Mitchell</a>, <a href="/search/nucl-ex?searchtype=author&query=Spinks%2C+N+J">N. J. Spinks</a>, <a href="/search/nucl-ex?searchtype=author&query=Tee%2C+B+P+E">B. P. E. Tee</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="2002.04777v1-abstract-short" style="display: inline;"> The emergence of nuclear collectivity near doubly-magic $^{132}$Sn was explored along the stable, even-even $^{124-130}$Te isotopes. Preliminary measurements of the $B(E2;4^{+}_{1}\rightarrow2^{+}_{1})$ transition strengths are reported from Coulomb excitation experiments primarily aimed at measuring the $g$ factors of the $4^{+}_{1}$ states. Isotopically enriched Te targets were excited by 198-20… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2002.04777v1-abstract-full').style.display = 'inline'; document.getElementById('2002.04777v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2002.04777v1-abstract-full" style="display: none;"> The emergence of nuclear collectivity near doubly-magic $^{132}$Sn was explored along the stable, even-even $^{124-130}$Te isotopes. Preliminary measurements of the $B(E2;4^{+}_{1}\rightarrow2^{+}_{1})$ transition strengths are reported from Coulomb excitation experiments primarily aimed at measuring the $g$ factors of the $4^{+}_{1}$ states. Isotopically enriched Te targets were excited by 198-205 MeV $^{58}$Ni beams. A comparison of transition strengths obtained is made to large-scale shell-model calculations with successes and limitations discussed. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2002.04777v1-abstract-full').style.display = 'none'; document.getElementById('2002.04777v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 11 February, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">5 pages, 3 figures, Submitted to Proceedings HIAS 2019, EPJ Web of Conferences</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1912.09612">arXiv:1912.09612</a> <span> [<a href="https://arxiv.org/pdf/1912.09612">pdf</a>, <a href="https://arxiv.org/ps/1912.09612">ps</a>, <a href="https://arxiv.org/format/1912.09612">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.124.032502">10.1103/PhysRevLett.124.032502 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Early signal of emerging nuclear collectivity in neutron-rich $^{129}$Sb </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Gray%2C+T+J">T. J. Gray</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=Stuchbery%2C+A+E">A. E. Stuchbery</a>, <a href="/search/nucl-ex?searchtype=author&query=Yu%2C+C+-">C. -H. Yu</a>, <a href="/search/nucl-ex?searchtype=author&query=Baktash%2C+C">C. Baktash</a>, <a href="/search/nucl-ex?searchtype=author&query=Gargano%2C+A">A. Gargano</a>, <a href="/search/nucl-ex?searchtype=author&query=Galindo-Uribarri%2C+A">A. Galindo-Uribarri</a>, <a href="/search/nucl-ex?searchtype=author&query=Radford%2C+D+C">D. C. Radford</a>, <a href="/search/nucl-ex?searchtype=author&query=Batchelder%2C+J+C">J. C. Batchelder</a>, <a href="/search/nucl-ex?searchtype=author&query=Beene%2C+J+R">J. R. Beene</a>, <a href="/search/nucl-ex?searchtype=author&query=Bingham%2C+C+R">C. R. Bingham</a>, <a href="/search/nucl-ex?searchtype=author&query=Coraggio%2C+L">L. Coraggio</a>, <a href="/search/nucl-ex?searchtype=author&query=Covello%2C+A">A. Covello</a>, <a href="/search/nucl-ex?searchtype=author&query=Danchev%2C+M">M. Danchev</a>, <a href="/search/nucl-ex?searchtype=author&query=Gross%2C+C+J">C. J. Gross</a>, <a href="/search/nucl-ex?searchtype=author&query=Hausladen%2C+P+A">P. A. Hausladen</a>, <a href="/search/nucl-ex?searchtype=author&query=Itaco%2C+N">N. Itaco</a>, <a href="/search/nucl-ex?searchtype=author&query=Krolas%2C+W">W. Krolas</a>, <a href="/search/nucl-ex?searchtype=author&query=Liang%2C+J+F">J. F. Liang</a>, <a href="/search/nucl-ex?searchtype=author&query=Padilla-Rodal%2C+E">E. Padilla-Rodal</a>, <a href="/search/nucl-ex?searchtype=author&query=Pavan%2C+J">J. Pavan</a>, <a href="/search/nucl-ex?searchtype=author&query=Stracener%2C+D+W">D. W. Stracener</a>, <a href="/search/nucl-ex?searchtype=author&query=Varner%2C+R+L">R. L. Varner</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="1912.09612v1-abstract-short" style="display: inline;"> Radioactive $^{129}$Sb, which can be treated as a proton plus semi-magic $^{128}$Sn core within the particle-core coupling scheme, was studied by Coulomb excitation. Reduced electric quadrupole transition probabilities, $B(E2)$, for the $2^+$ $\times$ $蟺g_{7/2}$ multiplet members and candidate $蟺d_{5/2}$ state were measured. The results indicate that the total electric quadrupole strength of… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1912.09612v1-abstract-full').style.display = 'inline'; document.getElementById('1912.09612v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1912.09612v1-abstract-full" style="display: none;"> Radioactive $^{129}$Sb, which can be treated as a proton plus semi-magic $^{128}$Sn core within the particle-core coupling scheme, was studied by Coulomb excitation. Reduced electric quadrupole transition probabilities, $B(E2)$, for the $2^+$ $\times$ $蟺g_{7/2}$ multiplet members and candidate $蟺d_{5/2}$ state were measured. The results indicate that the total electric quadrupole strength of $^{129}$Sb is a factor of 1.39(11) larger than the $^{128}$Sn core, which is in stark contrast to the expectations of the empirically successful particle-core coupling scheme. Shell-model calculations performed with two different sets of nucleon-nucleon interactions suggest that this enhanced collectivity is due to constructive quadrupole coherence in the wavefunctions stemming from the proton-neutron residual interactions, where adding one nucleon to a core near a double-shell closure can have a pronounced effect. The enhanced electric quadrupole strength is an early signal of the emerging nuclear collectivity that becomes dominant away from the shell closure. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1912.09612v1-abstract-full').style.display = 'none'; document.getElementById('1912.09612v1-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 December, 2019; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 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">Accepted, Physical Review Letters</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Physical Review Letters 124, 032502 (2020) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1905.10646">arXiv:1905.10646</a> <span> [<a href="https://arxiv.org/pdf/1905.10646">pdf</a>, <a href="https://arxiv.org/ps/1905.10646">ps</a>, <a href="https://arxiv.org/format/1905.10646">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Theory">nucl-th</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevC.100.034308">10.1103/PhysRevC.100.034308 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Structure of $^{38}$Cl and the quest for a comprehensive shell model interaction </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Lubna%2C+R+S">R. S. Lubna</a>, <a href="/search/nucl-ex?searchtype=author&query=Kravvaris%2C+K">K. Kravvaris</a>, <a href="/search/nucl-ex?searchtype=author&query=Tabor%2C+S+L">S. L. Tabor</a>, <a href="/search/nucl-ex?searchtype=author&query=Tripathi%2C+V">Vandana Tripathi</a>, <a href="/search/nucl-ex?searchtype=author&query=Volya%2C+A">A. Volya</a>, <a href="/search/nucl-ex?searchtype=author&query=Rubino%2C+E">E. Rubino</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=Abromeit%2C+B">B. Abromeit</a>, <a href="/search/nucl-ex?searchtype=author&query=Baby%2C+L+T">L. T. Baby</a>, <a href="/search/nucl-ex?searchtype=author&query=Hensley%2C+T+C">T. C. Hensley</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="1905.10646v3-abstract-short" style="display: inline;"> The higher-spin structure of $^{38}$Cl ($N = 21$) was investigated following the $^{26}$Mg($^{14}$C, $pn$) reaction at 30 and 37 MeV beam energies. The outgoing protons were detected in an $E- 螖E$ Si telescope placed at 0$^\circ$ close to the target with a Ta beam stopper between the target and telescope. Multiple $纬$ rays were detected in time coincidence with the protons using an enhanced versio… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1905.10646v3-abstract-full').style.display = 'inline'; document.getElementById('1905.10646v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1905.10646v3-abstract-full" style="display: none;"> The higher-spin structure of $^{38}$Cl ($N = 21$) was investigated following the $^{26}$Mg($^{14}$C, $pn$) reaction at 30 and 37 MeV beam energies. The outgoing protons were detected in an $E- 螖E$ Si telescope placed at 0$^\circ$ close to the target with a Ta beam stopper between the target and telescope. Multiple $纬$ rays were detected in time coincidence with the protons using an enhanced version of the FSU $纬$ detection array. The level scheme was extended up to 8420 keV with a likely spin of 10 $\hbar$. A new multishell interaction was developed guided by the experimental information. This FSU interaction was built by fitting to the energies of 270 experimental states from $^{13}$C to $^{51}$Ti. Calculations using the FSU interaction reproduce observed properties of $^{38}$Cl rather well, including the spectroscopic factors. The interaction has been successfully used to interpret the $1p1h$ and $2p2h$ configurations in some nearby nuclei as well. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1905.10646v3-abstract-full').style.display = 'none'; document.getElementById('1905.10646v3-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 September, 2019; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 25 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">Published in https://doi.org/10.1103/PhysRevC.100.034308</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. C 100, 034308 (2019) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1603.04484">arXiv:1603.04484</a> <span> [<a href="https://arxiv.org/pdf/1603.04484">pdf</a>, <a href="https://arxiv.org/format/1603.04484">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.2016.01.036">10.1016/j.physletb.2016.01.036 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Shape coexistence and the role of axial asymmetry in $^{72}$Ge </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Ayangeakaa%2C+A+D">A. D. Ayangeakaa</a>, <a href="/search/nucl-ex?searchtype=author&query=Janssens%2C+R+V+F">R. V. F. Janssens</a>, <a href="/search/nucl-ex?searchtype=author&query=Wu%2C+C+Y">C. Y. Wu</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=Wood%2C+J+L">J. L. Wood</a>, <a href="/search/nucl-ex?searchtype=author&query=Zhu%2C+S">S. Zhu</a>, <a href="/search/nucl-ex?searchtype=author&query=Albers%2C+M">M. Albers</a>, <a href="/search/nucl-ex?searchtype=author&query=Almaras-Calderon%2C+S">S. Almaras-Calderon</a>, <a href="/search/nucl-ex?searchtype=author&query=Bucher%2C+B">B. Bucher</a>, <a href="/search/nucl-ex?searchtype=author&query=Carpenter%2C+M+P">M. P. Carpenter</a>, <a href="/search/nucl-ex?searchtype=author&query=Chiara%2C+C+J">C. J. Chiara</a>, <a href="/search/nucl-ex?searchtype=author&query=Cline%2C+D">D. Cline</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=David%2C+H+M">H. M. David</a>, <a href="/search/nucl-ex?searchtype=author&query=Harker%2C+J">J. Harker</a>, <a href="/search/nucl-ex?searchtype=author&query=Hayes%2C+A+B">A. B. Hayes</a>, <a href="/search/nucl-ex?searchtype=author&query=Hoffman%2C+C+R">C. R. Hoffman</a>, <a href="/search/nucl-ex?searchtype=author&query=Kay%2C+B+P">B. P. Kay</a>, <a href="/search/nucl-ex?searchtype=author&query=Kolos%2C+K">K. Kolos</a>, <a href="/search/nucl-ex?searchtype=author&query=Korichi%2C+A">A. Korichi</a>, <a href="/search/nucl-ex?searchtype=author&query=Lauritsen%2C+T">T. Lauritsen</a>, <a href="/search/nucl-ex?searchtype=author&query=Macchiavelli%2C+A+O">A. O. Macchiavelli</a>, <a href="/search/nucl-ex?searchtype=author&query=Richard%2C+A">A. Richard</a>, <a href="/search/nucl-ex?searchtype=author&query=Seweryniak%2C+D">D. Seweryniak</a>, <a href="/search/nucl-ex?searchtype=author&query=Wiens%2C+A">A. Wiens</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="1603.04484v1-abstract-short" style="display: inline;"> The quadrupole collectivity of low-lying states and the anomalous behavior of the $0^+_2$ and $2^+_3$ levels in $^{72}$Ge are investigated via projectile multi-step Coulomb excitation with GRETINA and CHICO-2. A total of forty six $E2$ and $M1$ matrix elements connecting fourteen low-lying levels were determined using the least-squares search code, gosia. Evidence for triaxiality and shape coexist… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1603.04484v1-abstract-full').style.display = 'inline'; document.getElementById('1603.04484v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1603.04484v1-abstract-full" style="display: none;"> The quadrupole collectivity of low-lying states and the anomalous behavior of the $0^+_2$ and $2^+_3$ levels in $^{72}$Ge are investigated via projectile multi-step Coulomb excitation with GRETINA and CHICO-2. A total of forty six $E2$ and $M1$ matrix elements connecting fourteen low-lying levels were determined using the least-squares search code, gosia. Evidence for triaxiality and shape coexistence, based on the model-independent shape invariants deduced from the Kumar-Cline sum rule, is presented. These are interpreted using a simple two-state mixing model as well as multistate mixing calculations carried out within the framework of the triaxial rotor model. The results represent a significant milestone towards the understanding of the unusual structure of this nucleus. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1603.04484v1-abstract-full').style.display = 'none'; document.getElementById('1603.04484v1-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 March, 2016; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 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">7 pages and 7 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Lett. B 754, 254 (2016) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1602.05824">arXiv:1602.05824</a> <span> [<a href="https://arxiv.org/pdf/1602.05824">pdf</a>, <a href="https://arxiv.org/format/1602.05824">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.93.034303">10.1103/PhysRevC.93.034303 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> First observation of low-energy 纬-ray enhancement in the rare-earth region </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Simon%2C+A">A. Simon</a>, <a href="/search/nucl-ex?searchtype=author&query=Guttormsen%2C+M">M. Guttormsen</a>, <a href="/search/nucl-ex?searchtype=author&query=Larsen%2C+A+C">A. C. Larsen</a>, <a href="/search/nucl-ex?searchtype=author&query=Beausang%2C+C+W">C. W. Beausang</a>, <a href="/search/nucl-ex?searchtype=author&query=Humby%2C+P">P. Humby</a>, <a href="/search/nucl-ex?searchtype=author&query=Burke%2C+J+T">J. T. Burke</a>, <a href="/search/nucl-ex?searchtype=author&query=Casperson%2C+R+J">R. J. Casperson</a>, <a href="/search/nucl-ex?searchtype=author&query=Hughes%2C+R+O">R. O. Hughes</a>, <a href="/search/nucl-ex?searchtype=author&query=Ross%2C+T+J">T. J. Ross</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=Chyzh%2C+R">R. Chyzh</a>, <a href="/search/nucl-ex?searchtype=author&query=Dag%2C+M">M. Dag</a>, <a href="/search/nucl-ex?searchtype=author&query=Koglin%2C+J">J. Koglin</a>, <a href="/search/nucl-ex?searchtype=author&query=McCleskey%2C+E">E. McCleskey</a>, <a href="/search/nucl-ex?searchtype=author&query=McCleskey%2C+M">M. McCleskey</a>, <a href="/search/nucl-ex?searchtype=author&query=Ota%2C+S">S. Ota</a>, <a href="/search/nucl-ex?searchtype=author&query=Saastamoinen%2C+A">A. Saastamoinen</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="1602.05824v1-abstract-short" style="display: inline;"> The 纬-ray strength function and level density in the quasi-continuum of 151,153Sm have been measured using BGO shielded Ge clover detectors of the STARLiTeR system. The Compton shields allow for an extraction of the 纬 strength down to unprecedentedly low 纬 energies of about 500 keV. For the first time an enhanced low- energy 纬-ray strength has been observed in the rare-earth region. In addition, f… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1602.05824v1-abstract-full').style.display = 'inline'; document.getElementById('1602.05824v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1602.05824v1-abstract-full" style="display: none;"> The 纬-ray strength function and level density in the quasi-continuum of 151,153Sm have been measured using BGO shielded Ge clover detectors of the STARLiTeR system. The Compton shields allow for an extraction of the 纬 strength down to unprecedentedly low 纬 energies of about 500 keV. For the first time an enhanced low- energy 纬-ray strength has been observed in the rare-earth region. In addition, for the first time both the upbend and the well known scissors resonance have been observed simultaneously for the same nucleus. Hauser-Feshbach calculations show that this strength enhancement at low 纬 energies could have an impact of 2-3 orders of magnitude on the (n,纬) reaction rates for the r-process nucleosynthesis. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1602.05824v1-abstract-full').style.display = 'none'; document.getElementById('1602.05824v1-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 February, 2016; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2016. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1508.06531">arXiv:1508.06531</a> <span> [<a href="https://arxiv.org/pdf/1508.06531">pdf</a>, <a href="https://arxiv.org/format/1508.06531">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/10.5506/APhysPolB.46.537">10.5506/APhysPolB.46.537 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Recent direct reaction experimental studies with radioactive tin beams </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Jones%2C+K+L">K. L. Jones</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahn%2C+S">S. Ahn</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=Ayres%2C+A">A. Ayres</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=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=Bey%2C+A">A. Bey</a>, <a href="/search/nucl-ex?searchtype=author&query=Bingham%2C+C">C. Bingham</a>, <a href="/search/nucl-ex?searchtype=author&query=Cartegni%2C+L">L. Cartegni</a>, <a href="/search/nucl-ex?searchtype=author&query=Cerizza%2C+G">G. Cerizza</a>, <a href="/search/nucl-ex?searchtype=author&query=Chae%2C+K+Y">K. Y. Chae</a>, <a href="/search/nucl-ex?searchtype=author&query=Cizewski%2C+J+A">J. A. Cizewski</a>, <a href="/search/nucl-ex?searchtype=author&query=Gade%2C+A">A. Gade</a>, <a href="/search/nucl-ex?searchtype=author&query=Galindo-Uribarri%2C+A">A. Galindo-Uribarri</a>, <a href="/search/nucl-ex?searchtype=author&query=Garcia-Ruiz%2C+R+F">R. F. Garcia-Ruiz</a>, <a href="/search/nucl-ex?searchtype=author&query=Grzywacz%2C+R">R. Grzywacz</a>, <a href="/search/nucl-ex?searchtype=author&query=Howard%2C+M+E">M. E. Howard</a>, <a href="/search/nucl-ex?searchtype=author&query=Kozub%2C+R+L">R. L. Kozub</a>, <a href="/search/nucl-ex?searchtype=author&query=Liang%2C+J+F">J. F. Liang</a>, <a href="/search/nucl-ex?searchtype=author&query=Manning%2C+B">B. Manning</a>, <a href="/search/nucl-ex?searchtype=author&query=Matos%2C+M">M. Matos</a>, <a href="/search/nucl-ex?searchtype=author&query=McDaniel%2C+S">S. McDaniel</a>, <a href="/search/nucl-ex?searchtype=author&query=Miller%2C+D">D. Miller</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="1508.06531v1-abstract-short" style="display: inline;"> Direct reaction techniques are powerful tools to study the single-particle nature of nuclei. Performing direct reactions on short-lived nuclei requires radioactive ion beams produced either via fragmentation or the Isotope Separation OnLine (ISOL) method. Some of the most interesting regions to study with direct reactions are close to the magic numbers where changes in shell structure can be track… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1508.06531v1-abstract-full').style.display = 'inline'; document.getElementById('1508.06531v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1508.06531v1-abstract-full" style="display: none;"> Direct reaction techniques are powerful tools to study the single-particle nature of nuclei. Performing direct reactions on short-lived nuclei requires radioactive ion beams produced either via fragmentation or the Isotope Separation OnLine (ISOL) method. Some of the most interesting regions to study with direct reactions are close to the magic numbers where changes in shell structure can be tracked. These changes can impact the final abundances of explosive nucleosynthesis. The structure of the chain of tin isotopes is strongly influenced by the Z=50 proton shell closure, as well as the neutron shell closures lying in the neutron-rich, N=82, and neutron-deficient, N=50, regions. Here we present two examples of direct reactions on exotic tin isotopes. The first uses a one-neutron transfer reaction and a low-energy reaccelerated ISOL beam to study states in 131Sn from across the N=82 shell closure. The second example utilizes a one-neutron knockout reaction on fragmentation beams of neutron-deficient 106,108Sn. In both cases, measurements of gamma rays in coincidence with charged particles proved to be invaluable. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1508.06531v1-abstract-full').style.display = 'none'; document.getElementById('1508.06531v1-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> 26 August, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 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">11 pages, 5 figures, Zakopane Conference on Nuclear Physics "Extremes of the Nuclear Landscape", Zakopane, Poland, August 31 - September 7, 2014</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Acta Physica Polonica B, 46(3), 537-546 (2015) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1306.6846">arXiv:1306.6846</a> <span> [<a href="https://arxiv.org/pdf/1306.6846">pdf</a>, <a href="https://arxiv.org/ps/1306.6846">ps</a>, <a href="https://arxiv.org/format/1306.6846">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.87.064612">10.1103/PhysRevC.87.064612 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Sub-barrier fusion enhancement with radioactive 134Te </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Kohley%2C+Z">Z. Kohley</a>, <a href="/search/nucl-ex?searchtype=author&query=Liang%2C+J+F">J. F. Liang</a>, <a href="/search/nucl-ex?searchtype=author&query=Shapira%2C+D">D. Shapira</a>, <a href="/search/nucl-ex?searchtype=author&query=Gross%2C+C+J">C. J. Gross</a>, <a href="/search/nucl-ex?searchtype=author&query=Varner%2C+R+L">R. L. Varner</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=Kolata%2C+J+J">J. J. Kolata</a>, <a href="/search/nucl-ex?searchtype=author&query=Mueller%2C+P+E">P. E. Mueller</a>, <a href="/search/nucl-ex?searchtype=author&query=Roberts%2C+A">A. Roberts</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1306.6846v1-abstract-short" style="display: inline;"> The fusion cross sections of radioactive $^{134}$Te + $^{40}$Ca were measured at energies above and below the Coulomb barrier. The evaporation residues produced in the reaction were detected in a zero-degree ionization chamber providing high efficiency for inverse kinematics. Both coupled-channel calculations and comparison with similar Sn+Ca systems indicate an increased sub-barrier fusion probab… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1306.6846v1-abstract-full').style.display = 'inline'; document.getElementById('1306.6846v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1306.6846v1-abstract-full" style="display: none;"> The fusion cross sections of radioactive $^{134}$Te + $^{40}$Ca were measured at energies above and below the Coulomb barrier. The evaporation residues produced in the reaction were detected in a zero-degree ionization chamber providing high efficiency for inverse kinematics. Both coupled-channel calculations and comparison with similar Sn+Ca systems indicate an increased sub-barrier fusion probability that is correlated with the presence of positive Q-value neutron transfer channels. In comparison, the measured fusion excitation functions of $^{130}$Te + $^{58,64}$Ni, which have positive Q-value neutron transfer channels, were accurately reproduced by coupled-channel calculations including only inelastic excitations. The results demonstrate that the coupling of transfer channels can lead to enhanced sub-barrier fusion but this is not directly correlated with positive Q-value neutron transfer channels in all cases. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1306.6846v1-abstract-full').style.display = 'none'; document.getElementById('1306.6846v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 28 June, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2013. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. C 87, 064612 (2013) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/0805.1912">arXiv:0805.1912</a> <span> [<a href="https://arxiv.org/pdf/0805.1912">pdf</a>, <a href="https://arxiv.org/ps/0805.1912">ps</a>, <a href="https://arxiv.org/format/0805.1912">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.77.061301">10.1103/PhysRevC.77.061301 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Search for Intrinsic Excitations in 152Sm </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Kulp%2C+W+D">W. D. Kulp</a>, <a href="/search/nucl-ex?searchtype=author&query=Wood%2C+J+L">J. L. Wood</a>, <a href="/search/nucl-ex?searchtype=author&query=Garrett%2C+P+E">P. E. Garrett</a>, <a href="/search/nucl-ex?searchtype=author&query=Wu%2C+C+Y">C. Y. Wu</a>, <a href="/search/nucl-ex?searchtype=author&query=Cline%2C+D">D. Cline</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=Bandyopadhyay%2C+D">D. Bandyopadhyay</a>, <a href="/search/nucl-ex?searchtype=author&query=Dashdorj%2C+D">D. Dashdorj</a>, <a href="/search/nucl-ex?searchtype=author&query=Choudry%2C+S+N">S. N. Choudry</a>, <a href="/search/nucl-ex?searchtype=author&query=Hayes%2C+A+B">A. B. Hayes</a>, <a href="/search/nucl-ex?searchtype=author&query=Hua%2C+H">H. Hua</a>, <a href="/search/nucl-ex?searchtype=author&query=Mynk%2C+M+G">M. G. Mynk</a>, <a href="/search/nucl-ex?searchtype=author&query=McEllistrem%2C+M+T">M. T. McEllistrem</a>, <a href="/search/nucl-ex?searchtype=author&query=McKay%2C+C+J">C. J. McKay</a>, <a href="/search/nucl-ex?searchtype=author&query=Orce%2C+J+N">J. N. Orce</a>, <a href="/search/nucl-ex?searchtype=author&query=Teng%2C+R">R. Teng</a>, <a href="/search/nucl-ex?searchtype=author&query=Yates%2C+S+W">S. W. Yates</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="0805.1912v1-abstract-short" style="display: inline;"> The 685 keV excitation energy of the first excited 0+ state in 152Sm makes it an attractive candidate to explore expected two-phonon excitations at low energy. Multiple-step Coulomb excitation and inelastic neutron scattering studies of 152Sm are used to probe the E2 collectivity of excited 0+ states in this "soft" nucleus and the results are compared with model predictions. No candidates for tw… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('0805.1912v1-abstract-full').style.display = 'inline'; document.getElementById('0805.1912v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="0805.1912v1-abstract-full" style="display: none;"> The 685 keV excitation energy of the first excited 0+ state in 152Sm makes it an attractive candidate to explore expected two-phonon excitations at low energy. Multiple-step Coulomb excitation and inelastic neutron scattering studies of 152Sm are used to probe the E2 collectivity of excited 0+ states in this "soft" nucleus and the results are compared with model predictions. No candidates for two-phonon K=0+ quadrupole vibrational states are found. A 2+, K=2 state with strong E2 decay to the first excited K=0+ band and a probable 3+ band member are established. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('0805.1912v1-abstract-full').style.display = 'none'; document.getElementById('0805.1912v1-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 May, 2008; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2008. </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">4 pages, 6 figures, accepted for publication as a Rapid Communication in Physical Review C</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys.Rev.C77:061301,2008 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/0706.4129">arXiv:0706.4129</a> <span> [<a href="https://arxiv.org/pdf/0706.4129">pdf</a>, <a href="https://arxiv.org/ps/0706.4129">ps</a>, <a href="https://arxiv.org/format/0706.4129">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"> Shape Coexistence and Mixing in 152Sm </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Kulp%2C+W+D">W. D. Kulp</a>, <a href="/search/nucl-ex?searchtype=author&query=Wood%2C+J+L">J. L. Wood</a>, <a href="/search/nucl-ex?searchtype=author&query=Garrett%2C+P+E">P. E. Garrett</a>, <a href="/search/nucl-ex?searchtype=author&query=Wu%2C+C+Y">C. Y. Wu</a>, <a href="/search/nucl-ex?searchtype=author&query=Cline%2C+D">D. Cline</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=Bandyopadhyay%2C+D">D. Bandyopadhyay</a>, <a href="/search/nucl-ex?searchtype=author&query=Dashdorj%2C+D">D. Dashdorj</a>, <a href="/search/nucl-ex?searchtype=author&query=Choudry%2C+S+N">S. N. Choudry</a>, <a href="/search/nucl-ex?searchtype=author&query=Hayes%2C+A+B">A. B. Hayes</a>, <a href="/search/nucl-ex?searchtype=author&query=Hua%2C+H">H. Hua</a>, <a href="/search/nucl-ex?searchtype=author&query=Lesher%2C+S+R">S. R. Lesher</a>, <a href="/search/nucl-ex?searchtype=author&query=Mynk%2C+M">M. Mynk</a>, <a href="/search/nucl-ex?searchtype=author&query=McEllistrem%2C+M+T">M. T. McEllistrem</a>, <a href="/search/nucl-ex?searchtype=author&query=McKay%2C+C+J">C. J. McKay</a>, <a href="/search/nucl-ex?searchtype=author&query=Orce%2C+J+N">J. N. Orce</a>, <a href="/search/nucl-ex?searchtype=author&query=Teng%2C+R">R. Teng</a>, <a href="/search/nucl-ex?searchtype=author&query=Yates%2C+S+W">S. W. Yates</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="0706.4129v2-abstract-short" style="display: inline;"> Experimental studies of 152Sm using multiple-step Coulomb excitation and inelastic neutron scattering provide key data that clarify the low-energy collective structure of this nucleus. No candidates for two-phonon beta-vibrational states are found. Experimental level energies of the ground-state and first excited (0+ state) rotational bands, electric monopole transition rates, reduced quadrupole… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('0706.4129v2-abstract-full').style.display = 'inline'; document.getElementById('0706.4129v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="0706.4129v2-abstract-full" style="display: none;"> Experimental studies of 152Sm using multiple-step Coulomb excitation and inelastic neutron scattering provide key data that clarify the low-energy collective structure of this nucleus. No candidates for two-phonon beta-vibrational states are found. Experimental level energies of the ground-state and first excited (0+ state) rotational bands, electric monopole transition rates, reduced quadrupole transition rates, and the isomer shift of the first excited 2+ state are all described within ~10% precision using two-band mixing calculations. The basic collective structure of 152Sm is described using strong mixing of near-degenerate coexisting quasi-rotational bands with different deformations. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('0706.4129v2-abstract-full').style.display = 'none'; document.getElementById('0706.4129v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 28 June, 2007; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 27 June, 2007; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2007. </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 single-spaced, single-column pages, 4 figures, 1 table. Submitted to 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/nucl-ex/0607025">arXiv:nucl-ex/0607025</a> <span> [<a href="https://arxiv.org/pdf/nucl-ex/0607025">pdf</a>, <a href="https://arxiv.org/ps/nucl-ex/0607025">ps</a>, <a href="https://arxiv.org/format/nucl-ex/0607025">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.76.034319">10.1103/PhysRevC.76.034319 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> N=90 region: The decays of {152m,g}Eu to 152Sm </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Kulp%2C+W+D">W. D. Kulp</a>, <a href="/search/nucl-ex?searchtype=author&query=Wood%2C+J+L">J. L. Wood</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=Eimer%2C+J">J. Eimer</a>, <a href="/search/nucl-ex?searchtype=author&query=Furse%2C+D">D. Furse</a>, <a href="/search/nucl-ex?searchtype=author&query=Krane%2C+K+S">K. S. Krane</a>, <a href="/search/nucl-ex?searchtype=author&query=Larimer%2C+R+-">R. -M. Larimer</a>, <a href="/search/nucl-ex?searchtype=author&query=Loats%2C+J">J. Loats</a>, <a href="/search/nucl-ex?searchtype=author&query=Norman%2C+E+B">E. B. Norman</a>, <a href="/search/nucl-ex?searchtype=author&query=Piechaczek%2C+A">A. Piechaczek</a>, <a href="/search/nucl-ex?searchtype=author&query=Schmelzenbach%2C+P">P. Schmelzenbach</a>, <a href="/search/nucl-ex?searchtype=author&query=Stapels%2C+C+J">C. J. Stapels</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="nucl-ex/0607025v4-abstract-short" style="display: inline;"> The decays of {152m,g}Eu to 152Sm have been studied by gamma-ray spectroscopy using the 8pi Spectrometer, an array of 20 Compton-suppressed Ge detectors. Very weak gamma-decay branches in 152Sm were investigated through gamma-gamma coincidence spectroscopy. All possible E2 transitions between states below 1550 keV with transition energies > 130 keV are observed, including the previously unobserv… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('nucl-ex/0607025v4-abstract-full').style.display = 'inline'; document.getElementById('nucl-ex/0607025v4-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="nucl-ex/0607025v4-abstract-full" style="display: none;"> The decays of {152m,g}Eu to 152Sm have been studied by gamma-ray spectroscopy using the 8pi Spectrometer, an array of 20 Compton-suppressed Ge detectors. Very weak gamma-decay branches in 152Sm were investigated through gamma-gamma coincidence spectroscopy. All possible E2 transitions between states below 1550 keV with transition energies > 130 keV are observed, including the previously unobserved 2^+_3 to 0^+_2 401 keV transition. The results, combined with existing lifetime data, provide a number of new or revised E2 transition strengths which are critical for clarifying the collective structure of 152Sm and the N=90 isotones. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('nucl-ex/0607025v4-abstract-full').style.display = 'none'; document.getElementById('nucl-ex/0607025v4-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 June, 2007; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 20 July, 2006; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2006. </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">37 pages, 8 figures, 7 tables. Discussion significantly expanded: added comparisons of nine collective models to experimental data (excitation energies, B(E2), isomer shift, rho^2(E0))</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys.Rev.C76:034319,2007 </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 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