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<button class="button is-small is-link">Go</button> </div> </div> </form> </div> </div> <ol class="breathe-horizontal" start="1"> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2410.15807">arXiv:2410.15807</a> <span> [<a href="https://arxiv.org/pdf/2410.15807">pdf</a>, <a href="https://arxiv.org/format/2410.15807">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="Atomic Physics">physics.atom-ph</span> </div> </div> <p class="title is-5 mathjax"> Binding energies, charge radii, spins and moments: odd-odd Ag isotopes and discovery of a new isomer </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Borne%2C+B+v+d">B. van den Borne</a>, <a href="/search/nucl-ex?searchtype=author&query=Stryjczyk%2C+M">M. Stryjczyk</a>, <a href="/search/nucl-ex?searchtype=author&query=de+Groote%2C+R+P">R. P. de Groote</a>, <a href="/search/nucl-ex?searchtype=author&query=Kankainen%2C+A">A. Kankainen</a>, <a href="/search/nucl-ex?searchtype=author&query=Nesterenko%2C+D+A">D. A. Nesterenko</a>, <a href="/search/nucl-ex?searchtype=author&query=Ayoubi%2C+L+A">L. Al Ayoubi</a>, <a href="/search/nucl-ex?searchtype=author&query=Ascher%2C+P">P. Ascher</a>, <a href="/search/nucl-ex?searchtype=author&query=Beliuskina%2C+O">O. Beliuskina</a>, <a href="/search/nucl-ex?searchtype=author&query=Bissell%2C+M+L">M. L. Bissell</a>, <a href="/search/nucl-ex?searchtype=author&query=Bonnard%2C+J">J. Bonnard</a>, <a href="/search/nucl-ex?searchtype=author&query=Campbell%2C+P">P. Campbell</a>, <a href="/search/nucl-ex?searchtype=author&query=Canete%2C+L">L. Canete</a>, <a href="/search/nucl-ex?searchtype=author&query=Cheal%2C+B">B. Cheal</a>, <a href="/search/nucl-ex?searchtype=author&query=Delafosse%2C+C">C. Delafosse</a>, <a href="/search/nucl-ex?searchtype=author&query=de+Roubin%2C+A">A. de Roubin</a>, <a href="/search/nucl-ex?searchtype=author&query=Devlin%2C+C+S">C. S. Devlin</a>, <a href="/search/nucl-ex?searchtype=author&query=Eronen%2C+T">T. Eronen</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=Geldhof%2C+S">S. Geldhof</a>, <a href="/search/nucl-ex?searchtype=author&query=Gerbaux%2C+M">M. Gerbaux</a>, <a href="/search/nucl-ex?searchtype=author&query=Gins%2C+W">W. Gins</a>, <a href="/search/nucl-ex?searchtype=author&query=Gr%C3%A9vy%2C+S">S. Gr茅vy</a>, <a href="/search/nucl-ex?searchtype=author&query=Hukkanen%2C+M">M. Hukkanen</a>, <a href="/search/nucl-ex?searchtype=author&query=Husson%2C+A">A. Husson</a>, <a href="/search/nucl-ex?searchtype=author&query=Imgram%2C+P">P. Imgram</a> , et al. (11 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="2410.15807v2-abstract-short" style="display: inline;"> We report on the masses and hyperfine structure of ground and isomeric states in $^{114,116,118,120}$Ag isotopes, measured with the phase-imaging ion-cyclotron-resonance technique (PI-ICR) with the JYFLTRAP mass spectrometer and the collinear laser spectroscopy beamline at the Ion Guide Isotope Separator On-Line (IGISOL) facility, Jyv盲skyl盲, Finland. We measured the masses and excitation energies,… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2410.15807v2-abstract-full').style.display = 'inline'; document.getElementById('2410.15807v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2410.15807v2-abstract-full" style="display: none;"> We report on the masses and hyperfine structure of ground and isomeric states in $^{114,116,118,120}$Ag isotopes, measured with the phase-imaging ion-cyclotron-resonance technique (PI-ICR) with the JYFLTRAP mass spectrometer and the collinear laser spectroscopy beamline at the Ion Guide Isotope Separator On-Line (IGISOL) facility, Jyv盲skyl盲, Finland. We measured the masses and excitation energies, electromagnetic moments, and charge radii, and firmly established the nuclear spins of the long-lived states. A new isomer was discovered in $^{118}$Ag and the half-lives of $^{118}$Ag long-lived states were reevaluated. We unambiguously pinned down the level ordering of all long-lived states, placing the inversion of the $I = 0^-$ and $I = 4^+$ states at $A = 118$ $(N = 71)$. Lastly, we compared the electromagnetic moments of each state to empirical single-particle moments to identify the dominant configuration where possible. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2410.15807v2-abstract-full').style.display = 'none'; document.getElementById('2410.15807v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 5 December, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 21 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">Comments:</span> <span class="has-text-grey-dark mathjax">11 pages paper (excl. references) + 3 pages of supplementary material</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2409.07324">arXiv:2409.07324</a> <span> [<a href="https://arxiv.org/pdf/2409.07324">pdf</a>, <a href="https://arxiv.org/format/2409.07324">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"> $^{61}$Cr as a Doorway to the N = 40 Island of Inversion </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Lalanne%2C+L">L. Lalanne</a>, <a href="/search/nucl-ex?searchtype=author&query=Athanasakis-Kaklamanakis%2C+M">M. Athanasakis-Kaklamanakis</a>, <a href="/search/nucl-ex?searchtype=author&query=Dao%2C+D+D">D. D. Dao</a>, <a href="/search/nucl-ex?searchtype=author&query=Koszor%C3%BAs%2C+%C3%81">脕. Koszor煤s</a>, <a href="/search/nucl-ex?searchtype=author&query=Liu%2C+Y+C">Y. C. Liu</a>, <a href="/search/nucl-ex?searchtype=author&query=Mancheva%2C+R">R. Mancheva</a>, <a href="/search/nucl-ex?searchtype=author&query=Nowacki%2C+F">F. Nowacki</a>, <a href="/search/nucl-ex?searchtype=author&query=Reilly%2C+J">J. Reilly</a>, <a href="/search/nucl-ex?searchtype=author&query=Bernerd%2C+C">C. Bernerd</a>, <a href="/search/nucl-ex?searchtype=author&query=Chrysalidis%2C+K">K. Chrysalidis</a>, <a href="/search/nucl-ex?searchtype=author&query=Cocolios%2C+T+E">T. E. Cocolios</a>, <a href="/search/nucl-ex?searchtype=author&query=de+Groote%2C+R+P">R. P. de Groote</a>, <a href="/search/nucl-ex?searchtype=author&query=Flanagan%2C+K+T">K. T. Flanagan</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=Hanstorp%2C+D">D. Hanstorp</a>, <a href="/search/nucl-ex?searchtype=author&query=Heinke%2C+R">R. Heinke</a>, <a href="/search/nucl-ex?searchtype=author&query=Heines%2C+M">M. Heines</a>, <a href="/search/nucl-ex?searchtype=author&query=Lassegues%2C+P">P. Lassegues</a>, <a href="/search/nucl-ex?searchtype=author&query=Mack%2C+K">K. Mack</a>, <a href="/search/nucl-ex?searchtype=author&query=Marsh%2C+B+A">B. A. Marsh</a>, <a href="/search/nucl-ex?searchtype=author&query=McGlone%2C+A">A. McGlone</a>, <a href="/search/nucl-ex?searchtype=author&query=Lynch%2C+K+M">K. M. Lynch</a>, <a href="/search/nucl-ex?searchtype=author&query=Neyens%2C+G">G. Neyens</a>, <a href="/search/nucl-ex?searchtype=author&query=Borne%2C+B+v+d">B. van den Borne</a>, <a href="/search/nucl-ex?searchtype=author&query=Van+Duyse%2C+R">R. Van Duyse</a> , et al. (2 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2409.07324v1-abstract-short" style="display: inline;"> This paper reports on the measurement of the ground-state spin and nuclear magnetic dipole moment of $^{61}$Cr. The radioactive ion beam was produced at the CERN-ISOLDE facility and was probed using high-resolution resonance ionization laser spectroscopy with the CRIS apparatus. The present ground-state spin measurement $I = \frac{1}{2}$, differing from the previously adopted $I =(\frac{5}{2})$, h… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2409.07324v1-abstract-full').style.display = 'inline'; document.getElementById('2409.07324v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2409.07324v1-abstract-full" style="display: none;"> This paper reports on the measurement of the ground-state spin and nuclear magnetic dipole moment of $^{61}$Cr. The radioactive ion beam was produced at the CERN-ISOLDE facility and was probed using high-resolution resonance ionization laser spectroscopy with the CRIS apparatus. The present ground-state spin measurement $I = \frac{1}{2}$, differing from the previously adopted $I =(\frac{5}{2})$, has significant consequences on the interpretation of existing beta decay data and nuclear structure in the region. The structure and shape of $^{61}$Cr is interpreted with state-of-the-art Large-Scale Shell Model and Discrete-Non-Orthogonal Shell Model calculations. From the measured magnetic dipole moment $渭(^{61}$Cr$)=+0.539(7)~渭_N$ and the theoretical findings, its configuration is understood to be driven by 2 particle - 2 hole neutron excitations with an unpaired $1p_{1/2}$ neutron. This establishes the western border of the $N=40$ Island Of Inversion (IoI), characterized by 4 particle - 4 hole neutron components. We discuss the shape evolution along the Cr isotopic chain as a quantum phase transition at the entrance of the $N=40$ IoI. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2409.07324v1-abstract-full').style.display = 'none'; document.getElementById('2409.07324v1-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 September, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2024. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2408.14673">arXiv:2408.14673</a> <span> [<a href="https://arxiv.org/pdf/2408.14673">pdf</a>, <a href="https://arxiv.org/format/2408.14673">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Atomic Physics">physics.atom-ph</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="Chemical Physics">physics.chem-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Computational Physics">physics.comp-ph</span> </div> </div> <p class="title is-5 mathjax"> Ionization potential of radium monofluoride </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Wilkins%2C+S+G">S. G. Wilkins</a>, <a href="/search/nucl-ex?searchtype=author&query=Perrett%2C+H+A">H. A. Perrett</a>, <a href="/search/nucl-ex?searchtype=author&query=Udrescu%2C+S+M">S. M. Udrescu</a>, <a href="/search/nucl-ex?searchtype=author&query=Kyuberis%2C+A+A">A. A. Kyuberis</a>, <a href="/search/nucl-ex?searchtype=author&query=Pa%C5%A1teka%2C+L+F">L. F. Pa拧teka</a>, <a href="/search/nucl-ex?searchtype=author&query=Au%2C+M">M. Au</a>, <a href="/search/nucl-ex?searchtype=author&query=Belo%C5%A1evi%C4%87%2C+I">I. Belo拧evi膰</a>, <a href="/search/nucl-ex?searchtype=author&query=Berger%2C+R">R. Berger</a>, <a href="/search/nucl-ex?searchtype=author&query=Binnersley%2C+C+L">C. L. Binnersley</a>, <a href="/search/nucl-ex?searchtype=author&query=Bissell%2C+M+L">M. L. Bissell</a>, <a href="/search/nucl-ex?searchtype=author&query=Borschevsky%2C+A">A. Borschevsky</a>, <a href="/search/nucl-ex?searchtype=author&query=Breier%2C+A+A">A. A. Breier</a>, <a href="/search/nucl-ex?searchtype=author&query=Brinson%2C+A+J">A. J. Brinson</a>, <a href="/search/nucl-ex?searchtype=author&query=Chrysalidis%2C+K">K. Chrysalidis</a>, <a href="/search/nucl-ex?searchtype=author&query=Cocolios%2C+T+E">T. E. Cocolios</a>, <a href="/search/nucl-ex?searchtype=author&query=Cooper%2C+B+S">B. S. Cooper</a>, <a href="/search/nucl-ex?searchtype=author&query=de+Groote%2C+R+P">R. P. de Groote</a>, <a href="/search/nucl-ex?searchtype=author&query=Dorne%2C+A">A. Dorne</a>, <a href="/search/nucl-ex?searchtype=author&query=Eliav%2C+E">E. Eliav</a>, <a href="/search/nucl-ex?searchtype=author&query=Field%2C+R+W">R. W. Field</a>, <a href="/search/nucl-ex?searchtype=author&query=Flanagan%2C+K+T">K. T. Flanagan</a>, <a href="/search/nucl-ex?searchtype=author&query=Franchoo%2C+S">S. Franchoo</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=Gaul%2C+K">K. Gaul</a>, <a href="/search/nucl-ex?searchtype=author&query=Geldhof%2C+S">S. Geldhof</a> , et al. (21 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2408.14673v3-abstract-short" style="display: inline;"> The ionization potential (IP) of radium monofluoride (RaF) was measured to be 4.969(2)[10] eV, revealing a relativistic enhancement in the series of alkaline earth monofluorides. The results are in agreement with a relativistic coupled-cluster prediction of 4.969[7] eV, incorporating up to quantum electrodynamics corrections. Using the same computational methodology, an improved calculation for th… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2408.14673v3-abstract-full').style.display = 'inline'; document.getElementById('2408.14673v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2408.14673v3-abstract-full" style="display: none;"> The ionization potential (IP) of radium monofluoride (RaF) was measured to be 4.969(2)[10] eV, revealing a relativistic enhancement in the series of alkaline earth monofluorides. The results are in agreement with a relativistic coupled-cluster prediction of 4.969[7] eV, incorporating up to quantum electrodynamics corrections. Using the same computational methodology, an improved calculation for the dissociation energy ($D_{0}$) of 5.54[5] eV is presented. This confirms that radium monofluoride joins the small group of diatomic molecules for which $D_{0}>\mathrm{IP}$, paving the way for precision control and interrogation of its Rydberg states. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2408.14673v3-abstract-full').style.display = 'none'; document.getElementById('2408.14673v3-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 October, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 26 August, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2024. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2405.13668">arXiv:2405.13668</a> <span> [<a href="https://arxiv.org/pdf/2405.13668">pdf</a>, <a href="https://arxiv.org/format/2405.13668">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.2024.138737">10.1016/j.physletb.2024.138737 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Electromagnetic moments of the odd-mass nickel isotopes $^{59-67}$Ni </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=M%C3%BCller%2C+P">P. M眉ller</a>, <a href="/search/nucl-ex?searchtype=author&query=Kaufmann%2C+S">S. Kaufmann</a>, <a href="/search/nucl-ex?searchtype=author&query=Miyagi%2C+T">T. Miyagi</a>, <a href="/search/nucl-ex?searchtype=author&query=Billowes%2C+J">J. Billowes</a>, <a href="/search/nucl-ex?searchtype=author&query=Bissell%2C+M+L">M. L. Bissell</a>, <a href="/search/nucl-ex?searchtype=author&query=Blaum%2C+K">K. Blaum</a>, <a href="/search/nucl-ex?searchtype=author&query=Cheal%2C+B">B. Cheal</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=Gins%2C+W">W. Gins</a>, <a href="/search/nucl-ex?searchtype=author&query=Gorges%2C+C">C. Gorges</a>, <a href="/search/nucl-ex?searchtype=author&query=Heylen%2C+H">H. Heylen</a>, <a href="/search/nucl-ex?searchtype=author&query=Kanellakopoulos%2C+A">A. Kanellakopoulos</a>, <a href="/search/nucl-ex?searchtype=author&query=Malbrunot-Ettenauer%2C+S">S. Malbrunot-Ettenauer</a>, <a href="/search/nucl-ex?searchtype=author&query=Neugart%2C+R">R. Neugart</a>, <a href="/search/nucl-ex?searchtype=author&query=Neyens%2C+G">G. Neyens</a>, <a href="/search/nucl-ex?searchtype=author&query=N%C3%B6rtersh%C3%A4user%2C+W">W. N枚rtersh盲user</a>, <a href="/search/nucl-ex?searchtype=author&query=Ratajczyk%2C+T">T. Ratajczyk</a>, <a href="/search/nucl-ex?searchtype=author&query=Rodr%C3%ADguez%2C+L+V">L. V. Rodr铆guez</a>, <a href="/search/nucl-ex?searchtype=author&query=S%C3%A1nchez%2C+R">R. S谩nchez</a>, <a href="/search/nucl-ex?searchtype=author&query=Sailer%2C+S">S. Sailer</a>, <a href="/search/nucl-ex?searchtype=author&query=Schwenk%2C+A">A. Schwenk</a>, <a href="/search/nucl-ex?searchtype=author&query=Wehner%2C+L">L. Wehner</a>, <a href="/search/nucl-ex?searchtype=author&query=Wraith%2C+C">C. Wraith</a>, <a href="/search/nucl-ex?searchtype=author&query=Xie%2C+L">L. Xie</a>, <a href="/search/nucl-ex?searchtype=author&query=Xu%2C+Z+Y">Z. Y. Xu</a> , et al. (2 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2405.13668v2-abstract-short" style="display: inline;"> The magnetic dipole and the spectroscopic quadrupole moments of the nuclear ground states in the odd-mass nickel isotopes $^{59-67}$Ni have been determined using collinear laser spectroscopy at the CERN-ISOLDE facility. They are compared to ab initio valence-space in-medium similarity renormalization group (VS-IMSRG) calculations including contributions of two-body currents as well as to shell-mod… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2405.13668v2-abstract-full').style.display = 'inline'; document.getElementById('2405.13668v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2405.13668v2-abstract-full" style="display: none;"> The magnetic dipole and the spectroscopic quadrupole moments of the nuclear ground states in the odd-mass nickel isotopes $^{59-67}$Ni have been determined using collinear laser spectroscopy at the CERN-ISOLDE facility. They are compared to ab initio valence-space in-medium similarity renormalization group (VS-IMSRG) calculations including contributions of two-body currents as well as to shell-model calculations. The two-body-current contributions significantly improve the agreement with experimental data, reducing the mean-square deviation from the experimental moments by a factor of 3 to 5, depending on the employed interaction. For all interactions, the largest contributions are obtained for the $5/2^-$ ($7/2^-$) isotopes $^{65}$Ni ($^{55}$Ni), which is ascribed to the high angular momentum of the $f$ orbitals. Our results demonstrate that the inclusion of two-body-current contributions to the magnetic moment in an isotopic chain of complex nuclei can be handled by the VS-IMSRG and can outperform phenomenological shell-model calculations using effective $g$-factors in the nickel region. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2405.13668v2-abstract-full').style.display = 'none'; document.getElementById('2405.13668v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 30 May, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 22 May, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Published in Physics Letters B, 10 pages, 3 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Physics Letters B 854 (2024) 138737 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2404.06046">arXiv:2404.06046</a> <span> [<a href="https://arxiv.org/pdf/2404.06046">pdf</a>, <a href="https://arxiv.org/format/2404.06046">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.2024.138867">10.1016/j.physletb.2024.138867 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Nuclear charge radii of germanium isotopes around $N$ = 40 </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Wang%2C+S+J">S. J. Wang</a>, <a href="/search/nucl-ex?searchtype=author&query=Kanellakopoulos%2C+A">A. Kanellakopoulos</a>, <a href="/search/nucl-ex?searchtype=author&query=Yang%2C+X+F">X. F. Yang</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+S+W">S. W. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Billowes%2C+J">J. Billowes</a>, <a href="/search/nucl-ex?searchtype=author&query=Bissell%2C+M+L">M. L. Bissell</a>, <a href="/search/nucl-ex?searchtype=author&query=Blaum%2C+K">K. Blaum</a>, <a href="/search/nucl-ex?searchtype=author&query=Cheal%2C+B">B. Cheal</a>, <a href="/search/nucl-ex?searchtype=author&query=Devlin%2C+C+S">C. S. Devlin</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=Han%2C+J+Z">J. Z. Han</a>, <a href="/search/nucl-ex?searchtype=author&query=Heylen%2C+H">H. Heylen</a>, <a href="/search/nucl-ex?searchtype=author&query=Kaufmann%2C+S">S. Kaufmann</a>, <a href="/search/nucl-ex?searchtype=author&query=Konig%2C+K">K. Konig</a>, <a href="/search/nucl-ex?searchtype=author&query=Koszorus%2C+A">A. Koszorus</a>, <a href="/search/nucl-ex?searchtype=author&query=Lechner%2C+S">S. Lechner</a>, <a href="/search/nucl-ex?searchtype=author&query=Malbrunot-Ettenauer%2C+S">S. Malbrunot-Ettenauer</a>, <a href="/search/nucl-ex?searchtype=author&query=Nazarewicz%2C+W">W. Nazarewicz</a>, <a href="/search/nucl-ex?searchtype=author&query=Neugart%2C+R">R. Neugart</a>, <a href="/search/nucl-ex?searchtype=author&query=Neyens%2C+G">G. Neyens</a>, <a href="/search/nucl-ex?searchtype=author&query=Nortershauser%2C+W">W. Nortershauser</a>, <a href="/search/nucl-ex?searchtype=author&query=Ratajczyk%2C+T">T. Ratajczyk</a>, <a href="/search/nucl-ex?searchtype=author&query=Reinhard%2C+P+-">P. -G. Reinhard</a>, <a href="/search/nucl-ex?searchtype=author&query=Rodr%C4%B1guez%2C+L+V">L. V. Rodr谋guez</a>, <a href="/search/nucl-ex?searchtype=author&query=Sels%2C+S">S. Sels</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="2404.06046v1-abstract-short" style="display: inline;"> Collinear laser spectroscopy measurements were performed on $^{68-74}$Ge isotopes ($Z = 32$) at ISOLDE-CERN, by probing the $4s^2 4p^2 \, ^3\!P_1 \rightarrow 4s^2 4p 5s \, ^3\!P_1^o$ atomic transition (269~nm) of germanium. Nuclear charge radii are determined via the measured isotope shifts, revealing a larger local variation than the neighboring isotopic chains. Nuclear density functional theory… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2404.06046v1-abstract-full').style.display = 'inline'; document.getElementById('2404.06046v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2404.06046v1-abstract-full" style="display: none;"> Collinear laser spectroscopy measurements were performed on $^{68-74}$Ge isotopes ($Z = 32$) at ISOLDE-CERN, by probing the $4s^2 4p^2 \, ^3\!P_1 \rightarrow 4s^2 4p 5s \, ^3\!P_1^o$ atomic transition (269~nm) of germanium. Nuclear charge radii are determined via the measured isotope shifts, revealing a larger local variation than the neighboring isotopic chains. Nuclear density functional theory with the Fayans functionals Fy($螖r$,HFB) and Fy(IVP), and the SV-min Skyrme describes the experimental data for the differential charge radii $未\langle r^{2} \rangle$ and charge radii $R_{\rm c}$ within the theoretical uncertainties. The observed large variation in the charge radii of germanium isotopes is better accounted for by theoretical models incorporating ground state quadrupole correlations. This suggests that the polarization effects due to pairing and deformation contribute to the observed large odd-even staggering in the charge radii of the Ge isotopic chain. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2404.06046v1-abstract-full').style.display = 'none'; document.getElementById('2404.06046v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 9 April, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 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">6 pages,5 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2403.09336">arXiv:2403.09336</a> <span> [<a href="https://arxiv.org/pdf/2403.09336">pdf</a>, <a href="https://arxiv.org/format/2403.09336">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Atomic Physics">physics.atom-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> </div> <p class="title is-5 mathjax"> Radiative lifetime of the A 2螤1/2 state in RaF with relevance to laser cooling </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Athanasakis-Kaklamanakis%2C+M">M. Athanasakis-Kaklamanakis</a>, <a href="/search/nucl-ex?searchtype=author&query=Wilkins%2C+S+G">S. G. Wilkins</a>, <a href="/search/nucl-ex?searchtype=author&query=Lass%C3%A8gues%2C+P">P. Lass猫gues</a>, <a href="/search/nucl-ex?searchtype=author&query=Lalanne%2C+L">L. Lalanne</a>, <a href="/search/nucl-ex?searchtype=author&query=Reilly%2C+J+R">J. R. Reilly</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahmad%2C+O">O. Ahmad</a>, <a href="/search/nucl-ex?searchtype=author&query=Au%2C+M">M. Au</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+S+W">S. W. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Berbalk%2C+J">J. Berbalk</a>, <a href="/search/nucl-ex?searchtype=author&query=Bernerd%2C+C">C. Bernerd</a>, <a href="/search/nucl-ex?searchtype=author&query=Borschevsky%2C+A">A. Borschevsky</a>, <a href="/search/nucl-ex?searchtype=author&query=Breier%2C+A+A">A. A. Breier</a>, <a href="/search/nucl-ex?searchtype=author&query=Chrysalidis%2C+K">K. Chrysalidis</a>, <a href="/search/nucl-ex?searchtype=author&query=Cocolios%2C+T+E">T. E. Cocolios</a>, <a href="/search/nucl-ex?searchtype=author&query=de+Groote%2C+R+P">R. P. de Groote</a>, <a href="/search/nucl-ex?searchtype=author&query=Fajardo-Zambrano%2C+C+M">C. M. Fajardo-Zambrano</a>, <a href="/search/nucl-ex?searchtype=author&query=Flanagan%2C+K+T">K. T. Flanagan</a>, <a href="/search/nucl-ex?searchtype=author&query=Franchoo%2C+S">S. Franchoo</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=Hanstorp%2C+D">D. Hanstorp</a>, <a href="/search/nucl-ex?searchtype=author&query=Heinke%2C+R">R. Heinke</a>, <a href="/search/nucl-ex?searchtype=author&query=Imgram%2C+P">P. Imgram</a>, <a href="/search/nucl-ex?searchtype=author&query=Koszor%C3%BAs%2C+A">A. Koszor煤s</a>, <a href="/search/nucl-ex?searchtype=author&query=Kyuberis%2C+A+A">A. A. Kyuberis</a>, <a href="/search/nucl-ex?searchtype=author&query=Lim%2C+J">J. Lim</a> , et al. (16 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2403.09336v2-abstract-short" style="display: inline;"> The radiative lifetime of the $A$ $^2 螤_{1/2}$ (v=0) state in radium monofluoride (RaF) is measured to be 35(1) ns. The lifetime of this state and the related decay rate $螕= 2.86(8) \times 10^7$ $s^{-1}$ are of relevance to the laser cooling of RaF via the optically closed $A$ $^2 螤_{1/2} \leftarrow X$ $^2危_{1/2}$ transition, which makes the molecule a promising probe to search for new physics. Ra… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2403.09336v2-abstract-full').style.display = 'inline'; document.getElementById('2403.09336v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2403.09336v2-abstract-full" style="display: none;"> The radiative lifetime of the $A$ $^2 螤_{1/2}$ (v=0) state in radium monofluoride (RaF) is measured to be 35(1) ns. The lifetime of this state and the related decay rate $螕= 2.86(8) \times 10^7$ $s^{-1}$ are of relevance to the laser cooling of RaF via the optically closed $A$ $^2 螤_{1/2} \leftarrow X$ $^2危_{1/2}$ transition, which makes the molecule a promising probe to search for new physics. RaF is found to have a comparable photon-scattering rate to homoelectronic laser-coolable molecules. Thanks to its highly diagonal Franck-Condon matrix, it is expected to scatter an order of magnitude more photons than other molecules when using just 3 cooling lasers, before it decays to a dark state. The lifetime measurement in RaF is benchmarked by measuring the lifetime of the $8P_{3/2}$ state in Fr to be 83(3) ns, in agreement with literature. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2403.09336v2-abstract-full').style.display = 'none'; document.getElementById('2403.09336v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 6 June, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 14 March, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 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">Accepted as a Letter in Physical Review A; 8 pages of main text, 5 pages of supplemental material</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2402.12157">arXiv:2402.12157</a> <span> [<a href="https://arxiv.org/pdf/2402.12157">pdf</a>, <a href="https://arxiv.org/format/2402.12157">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Atomic Physics">physics.atom-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> </div> <p class="title is-5 mathjax"> Nuclear matter radii from molecular rotations using ultra-high-resolution spectroscopy </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Athanasakis-Kaklamanakis%2C+M">Michail Athanasakis-Kaklamanakis</a>, <a href="/search/nucl-ex?searchtype=author&query=Neyens%2C+G">Gerda Neyens</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="2402.12157v1-abstract-short" style="display: inline;"> The rotational constant parametrizes the relative spacing between a molecule's rotational energy levels. It depends on the molecule's classical moments of inertia, which, in all studies, are expressed by treating the constituent nuclei as point masses separated by the bond length. We point out that treating the finite nuclear size leads to a correction to the rotational constant at the Hz level, w… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2402.12157v1-abstract-full').style.display = 'inline'; document.getElementById('2402.12157v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2402.12157v1-abstract-full" style="display: none;"> The rotational constant parametrizes the relative spacing between a molecule's rotational energy levels. It depends on the molecule's classical moments of inertia, which, in all studies, are expressed by treating the constituent nuclei as point masses separated by the bond length. We point out that treating the finite nuclear size leads to a correction to the rotational constant at the Hz level, which is resolvable with recently developed ultra-high-resolution molecular spectrometers. Nuclear-model-independent measurements of nuclear matter radii can thus be envisioned in the future using such apparatuses, advancing beyond the existing hadronic scattering experiments and further developing the intersection of nuclear and molecular physics. In the present time, it appears that the computational ability of ab initio quantum chemistry might be the limiting factor to the technical readiness of the approach. To test the premises of the proposed method, we call for benchmark experiments using HD+ that are feasible with state-of-the-art experiment and theory. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2402.12157v1-abstract-full').style.display = 'none'; document.getElementById('2402.12157v1-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 February, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 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">10 pages, accepted in Physical Review Research</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2311.04121">arXiv:2311.04121</a> <span> [<a href="https://arxiv.org/pdf/2311.04121">pdf</a>, <a href="https://arxiv.org/format/2311.04121">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="Atomic Physics">physics.atom-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Chemical Physics">physics.chem-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Computational Physics">physics.comp-ph</span> </div> </div> <p class="title is-5 mathjax"> Observation of the distribution of nuclear magnetization in a molecule </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Wilkins%2C+S+G">S. G. Wilkins</a>, <a href="/search/nucl-ex?searchtype=author&query=Udrescu%2C+S+M">S. M. Udrescu</a>, <a href="/search/nucl-ex?searchtype=author&query=Athanasakis-Kaklamanakis%2C+M">M. Athanasakis-Kaklamanakis</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=Au%2C+M">M. Au</a>, <a href="/search/nucl-ex?searchtype=author&query=Belo%C5%A1evi%C4%87%2C+I">I. Belo拧evi膰</a>, <a href="/search/nucl-ex?searchtype=author&query=Berger%2C+R">R. Berger</a>, <a href="/search/nucl-ex?searchtype=author&query=Bissell%2C+M+L">M. L. Bissell</a>, <a href="/search/nucl-ex?searchtype=author&query=Breier%2C+A+A">A. A. Breier</a>, <a href="/search/nucl-ex?searchtype=author&query=Brinson%2C+A+J">A. J. Brinson</a>, <a href="/search/nucl-ex?searchtype=author&query=Chrysalidis%2C+K">K. Chrysalidis</a>, <a href="/search/nucl-ex?searchtype=author&query=Cocolios%2C+T+E">T. E. Cocolios</a>, <a href="/search/nucl-ex?searchtype=author&query=de+Groote%2C+R+P">R. P. de Groote</a>, <a href="/search/nucl-ex?searchtype=author&query=Dorne%2C+A">A. Dorne</a>, <a href="/search/nucl-ex?searchtype=author&query=Flanagan%2C+K+T">K. T. Flanagan</a>, <a href="/search/nucl-ex?searchtype=author&query=Franchoo%2C+S">S. Franchoo</a>, <a href="/search/nucl-ex?searchtype=author&query=Gaul%2C+K">K. Gaul</a>, <a href="/search/nucl-ex?searchtype=author&query=Geldhof%2C+S">S. Geldhof</a>, <a href="/search/nucl-ex?searchtype=author&query=Giesen%2C+T+F">T. F. Giesen</a>, <a href="/search/nucl-ex?searchtype=author&query=Hanstorp%2C+D">D. Hanstorp</a>, <a href="/search/nucl-ex?searchtype=author&query=Heinke%2C+R">R. Heinke</a>, <a href="/search/nucl-ex?searchtype=author&query=Isaev%2C+T">T. Isaev</a>, <a href="/search/nucl-ex?searchtype=author&query=Koszor%C3%BAs%2C+%C3%81">脕. Koszor煤s</a>, <a href="/search/nucl-ex?searchtype=author&query=Kujanp%C3%A4%C3%A4%2C+S">S. Kujanp盲盲</a>, <a href="/search/nucl-ex?searchtype=author&query=Lalanne%2C+L">L. Lalanne</a> , et al. (11 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2311.04121v1-abstract-short" style="display: inline;"> Rapid progress in the experimental control and interrogation of molecules, combined with developments in precise calculations of their structure, are enabling new opportunities in the investigation of nuclear and particle physics phenomena. Molecules containing heavy, octupole-deformed nuclei such as radium are of particular interest for such studies, offering an enhanced sensitivity to the proper… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2311.04121v1-abstract-full').style.display = 'inline'; document.getElementById('2311.04121v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2311.04121v1-abstract-full" style="display: none;"> Rapid progress in the experimental control and interrogation of molecules, combined with developments in precise calculations of their structure, are enabling new opportunities in the investigation of nuclear and particle physics phenomena. Molecules containing heavy, octupole-deformed nuclei such as radium are of particular interest for such studies, offering an enhanced sensitivity to the properties of fundamental particles and interactions. Here, we report precision laser spectroscopy measurements and theoretical calculations of the structure of the radioactive radium monofluoride molecule, $^{225}$Ra$^{19}$F. Our results allow fine details of the short-range electron-nucleus interaction to be revealed, indicating the high sensitivity of this molecule to the distribution of magnetization, currently a poorly constrained nuclear property, within the radium nucleus. These results provide a direct and stringent test of the description of the electronic wavefunction inside the nuclear volume, highlighting the suitability of these molecules to investigate subatomic phenomena. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2311.04121v1-abstract-full').style.display = 'none'; document.getElementById('2311.04121v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 7 November, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2023. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2311.01110">arXiv:2311.01110</a> <span> [<a href="https://arxiv.org/pdf/2311.01110">pdf</a>, <a href="https://arxiv.org/format/2311.01110">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.2023.138278">10.1016/j.physletb.2023.138278 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Electromagnetic moments of the antimony isotopes $^{112-133}$Sb </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Lechner%2C+S">S. Lechner</a>, <a href="/search/nucl-ex?searchtype=author&query=Miyagi%2C+T">T. Miyagi</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=Bissell%2C+M+L">M. L. Bissell</a>, <a href="/search/nucl-ex?searchtype=author&query=Blaum%2C+K">K. Blaum</a>, <a href="/search/nucl-ex?searchtype=author&query=Cheal%2C+B">B. Cheal</a>, <a href="/search/nucl-ex?searchtype=author&query=Devlin%2C+C+S">C. S. Devlin</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=Ginges%2C+J+S+M">J. S. M. Ginges</a>, <a href="/search/nucl-ex?searchtype=author&query=Heylen%2C+H">H. Heylen</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=Imgram%2C+P">P. Imgram</a>, <a href="/search/nucl-ex?searchtype=author&query=Kanellakopoulos%2C+A">A. Kanellakopoulos</a>, <a href="/search/nucl-ex?searchtype=author&query=Koszor%C3%BAs%2C+%C3%81">脕. Koszor煤s</a>, <a href="/search/nucl-ex?searchtype=author&query=Malbrunot-Ettenauer%2C+S">S. Malbrunot-Ettenauer</a>, <a href="/search/nucl-ex?searchtype=author&query=Neugart%2C+R">R. Neugart</a>, <a href="/search/nucl-ex?searchtype=author&query=Neyens%2C+G">G. Neyens</a>, <a href="/search/nucl-ex?searchtype=author&query=N%C3%B6rtersh%C3%A4user%2C+W">W. N枚rtersh盲user</a>, <a href="/search/nucl-ex?searchtype=author&query=Plattner%2C+P">P. Plattner</a>, <a href="/search/nucl-ex?searchtype=author&query=Rodr%C3%ADguez%2C+L+V">L. V. Rodr铆guez</a>, <a href="/search/nucl-ex?searchtype=author&query=Sanamyan%2C+G">G. Sanamyan</a>, <a href="/search/nucl-ex?searchtype=author&query=Stroberg%2C+S+R">S. R. Stroberg</a>, <a href="/search/nucl-ex?searchtype=author&query=Utsuno%2C+Y">Y. Utsuno</a>, <a href="/search/nucl-ex?searchtype=author&query=Yang%2C+X+F">X. F. Yang</a>, <a href="/search/nucl-ex?searchtype=author&query=Yordanov%2C+D+T">D. T. Yordanov</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2311.01110v1-abstract-short" style="display: inline;"> Nuclear moments of the antimony isotopes $^{113-133}$Sb are measured by collinear laser spectroscopy and used to benchmark phenomenological shell-model and \textit{ab initio} calculations in the valence-space in-medium similarity renormalization group (VS-IMSRG). The shell-model calculations reproduce the electromagnetic moments over all Sb isotopes when suitable effective $g$-factors and charges… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2311.01110v1-abstract-full').style.display = 'inline'; document.getElementById('2311.01110v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2311.01110v1-abstract-full" style="display: none;"> Nuclear moments of the antimony isotopes $^{113-133}$Sb are measured by collinear laser spectroscopy and used to benchmark phenomenological shell-model and \textit{ab initio} calculations in the valence-space in-medium similarity renormalization group (VS-IMSRG). The shell-model calculations reproduce the electromagnetic moments over all Sb isotopes when suitable effective $g$-factors and charges are employed. Good agreement is achieved by VS-IMSRG for magnetic moments on the neutron-deficient side for both odd-even and odd-odd Sb isotopes while its results deviate from experiment on the neutron-rich side. When the same effective $g$-factors are used, VS-IMSRG agrees with experiment nearly as well as the shell model. Hence, the wave functions are very similar in both approaches and missing contributions to the M1 operator are identified as the cause of the discrepancy of VS-IMSRG with experiment. Electric quadrupole moments remain more challenging for VS-IMSRG. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2311.01110v1-abstract-full').style.display = 'none'; document.getElementById('2311.01110v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 2 November, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2023. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2310.15291">arXiv:2310.15291</a> <span> [<a href="https://arxiv.org/pdf/2310.15291">pdf</a>, <a href="https://arxiv.org/format/2310.15291">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.131.222502">10.1103/PhysRevLett.131.222502 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Nuclear charge radius of $^{26m}$Al and its implication for V$_{ud}$ in the quark-mixing matrix </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Plattner%2C+P">P. Plattner</a>, <a href="/search/nucl-ex?searchtype=author&query=Wood%2C+E">E. Wood</a>, <a href="/search/nucl-ex?searchtype=author&query=Ayoubi%2C+L+A">L. Al Ayoubi</a>, <a href="/search/nucl-ex?searchtype=author&query=Beliuskina%2C+O">O. Beliuskina</a>, <a href="/search/nucl-ex?searchtype=author&query=Bissell%2C+M+L">M. L. Bissell</a>, <a href="/search/nucl-ex?searchtype=author&query=Blaum%2C+K">K. Blaum</a>, <a href="/search/nucl-ex?searchtype=author&query=Campbell%2C+P">P. Campbell</a>, <a href="/search/nucl-ex?searchtype=author&query=Cheal%2C+B">B. Cheal</a>, <a href="/search/nucl-ex?searchtype=author&query=de+Groote%2C+R+P">R. P. de Groote</a>, <a href="/search/nucl-ex?searchtype=author&query=Devlin%2C+C+S">C. S. Devlin</a>, <a href="/search/nucl-ex?searchtype=author&query=Eronen%2C+T">T. Eronen</a>, <a href="/search/nucl-ex?searchtype=author&query=Filippin%2C+L">L. Filippin</a>, <a href="/search/nucl-ex?searchtype=author&query=Ru%C3%ADz%2C+R+F+G">R. F. Garc铆a Ru铆z</a>, <a href="/search/nucl-ex?searchtype=author&query=Ge%2C+Z">Z. Ge</a>, <a href="/search/nucl-ex?searchtype=author&query=Geldhof%2C+S">S. Geldhof</a>, <a href="/search/nucl-ex?searchtype=author&query=Gins%2C+W">W. Gins</a>, <a href="/search/nucl-ex?searchtype=author&query=Godefroid%2C+M">M. Godefroid</a>, <a href="/search/nucl-ex?searchtype=author&query=Heylen%2C+H">H. Heylen</a>, <a href="/search/nucl-ex?searchtype=author&query=Hukkanen%2C+M">M. Hukkanen</a>, <a href="/search/nucl-ex?searchtype=author&query=Imgram%2C+P">P. Imgram</a>, <a href="/search/nucl-ex?searchtype=author&query=Jaries%2C+A">A. Jaries</a>, <a href="/search/nucl-ex?searchtype=author&query=Jokinen%2C+A">A. Jokinen</a>, <a href="/search/nucl-ex?searchtype=author&query=Kanellakopoulos%2C+A">A. Kanellakopoulos</a>, <a href="/search/nucl-ex?searchtype=author&query=Kankainen%2C+A">A. Kankainen</a>, <a href="/search/nucl-ex?searchtype=author&query=Kaufmann%2C+S">S. Kaufmann</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="2310.15291v1-abstract-short" style="display: inline;"> Collinear laser spectroscopy was performed on the isomer of the aluminium isotope $^{26m}$Al. The measured isotope shift to $^{27}$Al in the $3s^{2}3p\;^{2}\!P^\circ_{3/2} \rightarrow 3s^{2}4s\;^{2}\!S_{1/2}$ atomic transition enabled the first experimental determination of the nuclear charge radius of $^{26m}$Al, resulting in $R_c$=\qty{3.130\pm.015}{\femto\meter}. This differs by 4.5 standard de… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2310.15291v1-abstract-full').style.display = 'inline'; document.getElementById('2310.15291v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2310.15291v1-abstract-full" style="display: none;"> Collinear laser spectroscopy was performed on the isomer of the aluminium isotope $^{26m}$Al. The measured isotope shift to $^{27}$Al in the $3s^{2}3p\;^{2}\!P^\circ_{3/2} \rightarrow 3s^{2}4s\;^{2}\!S_{1/2}$ atomic transition enabled the first experimental determination of the nuclear charge radius of $^{26m}$Al, resulting in $R_c$=\qty{3.130\pm.015}{\femto\meter}. This differs by 4.5 standard deviations from the extrapolated value used to calculate the isospin-symmetry breaking corrections in the superallowed $尾$ decay of $^{26m}$Al. Its corrected $\mathcal{F}t$ value, important for the estimation of $V_{ud}$ in the CKM matrix, is thus shifted by one standard deviation to \qty{3071.4\pm1.0}{\second}. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2310.15291v1-abstract-full').style.display = 'none'; document.getElementById('2310.15291v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 23 October, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2023. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">5 pages, 2 figures, submitted to Phys. Rev. Lett</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 131, 222502 (2023) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2310.15093">arXiv:2310.15093</a> <span> [<a href="https://arxiv.org/pdf/2310.15093">pdf</a>, <a href="https://arxiv.org/format/2310.15093">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> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Atomic Physics">physics.atom-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1038/s41567-024-02612-y">10.1038/s41567-024-02612-y <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Electromagnetic Properties of Indium Isotopes Elucidate the Doubly Magic Character of $^{100}$Sn </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Karthein%2C+J">J. Karthein</a>, <a href="/search/nucl-ex?searchtype=author&query=Ricketts%2C+C+M">C. M. Ricketts</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=Billowes%2C+J">J. Billowes</a>, <a href="/search/nucl-ex?searchtype=author&query=Binnersley%2C+C+L">C. L. Binnersley</a>, <a href="/search/nucl-ex?searchtype=author&query=Cocolios%2C+T+E">T. E. Cocolios</a>, <a href="/search/nucl-ex?searchtype=author&query=Dobaczewski%2C+J">J. Dobaczewski</a>, <a href="/search/nucl-ex?searchtype=author&query=Farooq-Smith%2C+G+J">G. J. Farooq-Smith</a>, <a href="/search/nucl-ex?searchtype=author&query=Flanagan%2C+K+T">K. T. Flanagan</a>, <a href="/search/nucl-ex?searchtype=author&query=Georgiev%2C+G">G. Georgiev</a>, <a href="/search/nucl-ex?searchtype=author&query=Gins%2C+W">W. Gins</a>, <a href="/search/nucl-ex?searchtype=author&query=de+Groote%2C+R+P">R. P. de Groote</a>, <a href="/search/nucl-ex?searchtype=author&query=Gustafsson%2C+F+P">F. P. Gustafsson</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=Kanellakopoulos%2C+A">A. Kanellakopoulos</a>, <a href="/search/nucl-ex?searchtype=author&query=Koszor%C3%BAs%2C+%C3%81">脕. Koszor煤s</a>, <a href="/search/nucl-ex?searchtype=author&query=Leimbach%2C+D">D. Leimbach</a>, <a href="/search/nucl-ex?searchtype=author&query=Lynch%2C+K+M">K. M. Lynch</a>, <a href="/search/nucl-ex?searchtype=author&query=Miyagi%2C+T">T. Miyagi</a>, <a href="/search/nucl-ex?searchtype=author&query=Nazarewicz%2C+W">W. Nazarewicz</a>, <a href="/search/nucl-ex?searchtype=author&query=Neyens%2C+G">G. Neyens</a>, <a href="/search/nucl-ex?searchtype=author&query=Reinhard%2C+P+-">P. -G. Reinhard</a>, <a href="/search/nucl-ex?searchtype=author&query=Sahoo%2C+B+K">B. K. Sahoo</a>, <a href="/search/nucl-ex?searchtype=author&query=Vernon%2C+A+R">A. R. Vernon</a>, <a href="/search/nucl-ex?searchtype=author&query=Wilkins%2C+S+G">S. G. Wilkins</a> , et al. (2 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2310.15093v3-abstract-short" style="display: inline;"> Our understanding of nuclear properties in the vicinity of $^{100}$Sn, suggested to be the heaviest doubly magic nucleus with equal numbers of protons (Z=50) and neutrons (N=50), has been a long-standing challenge for experimental and theoretical nuclear physics. Contradictory experimental evidence exists on the role of nuclear collectivity in this region of the nuclear chart. Using precision lase… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2310.15093v3-abstract-full').style.display = 'inline'; document.getElementById('2310.15093v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2310.15093v3-abstract-full" style="display: none;"> Our understanding of nuclear properties in the vicinity of $^{100}$Sn, suggested to be the heaviest doubly magic nucleus with equal numbers of protons (Z=50) and neutrons (N=50), has been a long-standing challenge for experimental and theoretical nuclear physics. Contradictory experimental evidence exists on the role of nuclear collectivity in this region of the nuclear chart. Using precision laser spectroscopy, we measured the ground-state electromagnetic moments of indium (Z=49) isotopes approaching the N=50 neutron number down to 101In, and nuclear charge radii of 101-131In spanning almost the complete range between the two major neutron closed-shells at N=50 and N=82. Our results for both nuclear charge radii and quadrupole moments reveal striking parabolic trends as a function of the neutron number, with a clear reduction toward these two neutron closed-shells, thus supporting a doubly magic character of $^{100}$Sn. Two complementary nuclear many-body frameworks, density functional theory and ab initio methods, elucidate our findings. A detailed comparison with our experimental results exposes deficiencies of nuclear models, establishing a benchmark for future theoretical developments. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2310.15093v3-abstract-full').style.display = 'none'; document.getElementById('2310.15093v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 30 September, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 23 October, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2023. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">12 pages, 6 figures, 4 tables; text-identical to Nature Physics article (2024)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Nature Physics 20 (2024) 1719 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2308.14862">arXiv:2308.14862</a> <span> [<a href="https://arxiv.org/pdf/2308.14862">pdf</a>, <a href="https://arxiv.org/format/2308.14862">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Atomic Physics">physics.atom-ph</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="Chemical Physics">physics.chem-ph</span> </div> </div> <p class="title is-5 mathjax"> Pinning down electron correlations in RaF via spectroscopy of excited states and high-accuracy relativistic quantum chemistry </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Athanasakis-Kaklamanakis%2C+M">M. Athanasakis-Kaklamanakis</a>, <a href="/search/nucl-ex?searchtype=author&query=Wilkins%2C+S+G">S. G. Wilkins</a>, <a href="/search/nucl-ex?searchtype=author&query=Skripnikov%2C+L+V">L. V. Skripnikov</a>, <a href="/search/nucl-ex?searchtype=author&query=Koszor%C3%BAs%2C+A">A. Koszor煤s</a>, <a href="/search/nucl-ex?searchtype=author&query=Breier%2C+A+A">A. A. Breier</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahmad%2C+O">O. Ahmad</a>, <a href="/search/nucl-ex?searchtype=author&query=Au%2C+M">M. Au</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+S+W">S. W. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Belo%C5%A1evi%C4%87%2C+I">I. Belo拧evi膰</a>, <a href="/search/nucl-ex?searchtype=author&query=Berbalk%2C+J">J. Berbalk</a>, <a href="/search/nucl-ex?searchtype=author&query=Berger%2C+R">R. Berger</a>, <a href="/search/nucl-ex?searchtype=author&query=Bernerd%2C+C">C. Bernerd</a>, <a href="/search/nucl-ex?searchtype=author&query=Bissell%2C+M+L">M. L. Bissell</a>, <a href="/search/nucl-ex?searchtype=author&query=Borschevsky%2C+A">A. Borschevsky</a>, <a href="/search/nucl-ex?searchtype=author&query=Brinson%2C+A">A. Brinson</a>, <a href="/search/nucl-ex?searchtype=author&query=Chrysalidis%2C+K">K. Chrysalidis</a>, <a href="/search/nucl-ex?searchtype=author&query=Cocolios%2C+T+E">T. E. Cocolios</a>, <a href="/search/nucl-ex?searchtype=author&query=de+Groote%2C+R+P">R. P. de Groote</a>, <a href="/search/nucl-ex?searchtype=author&query=Dorne%2C+A">A. Dorne</a>, <a href="/search/nucl-ex?searchtype=author&query=Fajardo-Zambrano%2C+C+M">C. M. Fajardo-Zambrano</a>, <a href="/search/nucl-ex?searchtype=author&query=Field%2C+R+W">R. W. Field</a>, <a href="/search/nucl-ex?searchtype=author&query=Flanagan%2C+K+T">K. T. Flanagan</a>, <a href="/search/nucl-ex?searchtype=author&query=Franchoo%2C+S">S. Franchoo</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=Gaul%2C+K">K. Gaul</a> , et al. (31 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="2308.14862v2-abstract-short" style="display: inline;"> We report the spectroscopy of the 14 lowest excited electronic states in the radioactive molecule radium monofluoride (RaF). The observed excitation energies are compared with fully relativistic state-of-the-art Fock-space coupled cluster (FS-RCC) calculations, which achieve an agreement of >=99.64% (within ~12 meV) with experiment for all states. Guided by theory, a firm assignment of the angular… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2308.14862v2-abstract-full').style.display = 'inline'; document.getElementById('2308.14862v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2308.14862v2-abstract-full" style="display: none;"> We report the spectroscopy of the 14 lowest excited electronic states in the radioactive molecule radium monofluoride (RaF). The observed excitation energies are compared with fully relativistic state-of-the-art Fock-space coupled cluster (FS-RCC) calculations, which achieve an agreement of >=99.64% (within ~12 meV) with experiment for all states. Guided by theory, a firm assignment of the angular momentum and term symbol is made for 10 states and a tentative assignment for 4 states. The role of high-order electron correlation and quantum electrodynamics effects in the excitation energy of excited states is studied, found to be important for all states. Establishing the simultaneous accuracy and precision of calculations is an important step for research at the intersection of particle, nuclear, and chemical physics, including searches of physics beyond the Standard Model, for which RaF is a promising probe. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2308.14862v2-abstract-full').style.display = 'none'; document.getElementById('2308.14862v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 20 December, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 28 August, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 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">Significant changes compared to previous version with additional experimental data. Accepted for publication under a different title</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2303.15312">arXiv:2303.15312</a> <span> [<a href="https://arxiv.org/pdf/2303.15312">pdf</a>, <a href="https://arxiv.org/format/2303.15312">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.nimb.2023.04.054">10.1016/j.nimb.2023.04.054 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Voltage scanning and technical upgrades at the Collinear Resonance Ionization Spectroscopy experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Athanasakis-Kaklamanakis%2C+M">Michail Athanasakis-Kaklamanakis</a>, <a href="/search/nucl-ex?searchtype=author&query=Reilly%2C+J+R">Jordan R. Reilly</a>, <a href="/search/nucl-ex?searchtype=author&query=Koszorus%2C+A">Agota Koszorus</a>, <a href="/search/nucl-ex?searchtype=author&query=Wilkins%2C+S+G">Shane G. Wilkins</a>, <a href="/search/nucl-ex?searchtype=author&query=Lalanne%2C+L">Louis Lalanne</a>, <a href="/search/nucl-ex?searchtype=author&query=Geldhof%2C+S">Sarina Geldhof</a>, <a href="/search/nucl-ex?searchtype=author&query=Nichols%2C+M">Miranda Nichols</a>, <a href="/search/nucl-ex?searchtype=author&query=Wang%2C+Q">Quanjun Wang</a>, <a href="/search/nucl-ex?searchtype=author&query=Borne%2C+B+v+d">Bram van den Borne</a>, <a href="/search/nucl-ex?searchtype=author&query=Chorlton%2C+D">David Chorlton</a>, <a href="/search/nucl-ex?searchtype=author&query=Cocolios%2C+T+E">Thomas E. Cocolios</a>, <a href="/search/nucl-ex?searchtype=author&query=Flanagan%2C+K+T">Kieran T. Flanagan</a>, <a href="/search/nucl-ex?searchtype=author&query=Ruiz%2C+R+F+G">Ronald F. Garcia Ruiz</a>, <a href="/search/nucl-ex?searchtype=author&query=de+Groote%2C+R">Ruben de Groote</a>, <a href="/search/nucl-ex?searchtype=author&query=Hanstorp%2C+D">Dag Hanstorp</a>, <a href="/search/nucl-ex?searchtype=author&query=Neyens%2C+G">Gerda Neyens</a>, <a href="/search/nucl-ex?searchtype=author&query=Smith%2C+A+J">Andrew J. Smith</a>, <a href="/search/nucl-ex?searchtype=author&query=Vernon%2C+A+R">Adam R. Vernon</a>, <a href="/search/nucl-ex?searchtype=author&query=Yang%2C+X+F">Xiaofei F. Yang</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="2303.15312v1-abstract-short" style="display: inline;"> To optimize the performance of the Collinear Resonance Ionization Spectroscopy (CRIS) experiment at CERN-ISOLDE, technical upgrades are continuously introduced, aiming to enhance its sensitivity, precision, stability, and efficiency. Recently, a voltage-scanning setup was developed and commissioned at CRIS, which improved the scanning speed by a factor of three as compared to the current laser-fre… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2303.15312v1-abstract-full').style.display = 'inline'; document.getElementById('2303.15312v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2303.15312v1-abstract-full" style="display: none;"> To optimize the performance of the Collinear Resonance Ionization Spectroscopy (CRIS) experiment at CERN-ISOLDE, technical upgrades are continuously introduced, aiming to enhance its sensitivity, precision, stability, and efficiency. Recently, a voltage-scanning setup was developed and commissioned at CRIS, which improved the scanning speed by a factor of three as compared to the current laser-frequency scanning approach. This leads to faster measurements of the hyperfine structure for systems with high yields (more than a few thousand ions per second). Additionally, several beamline sections have been redesigned and manufactured, including a new field-ionization unit, a sharper electrostatic bend, and improved ion optics. The beamline upgrades are expected to yield an improvement of at least a factor of 5 in the signal-to-noise ratio by suppressing the non-resonant laser ions and providing time-of-flight separation between the resonant ions and the collisional background. Overall, the presented developments will further improve the selectivity, sensitivity, and efficiency of the CRIS technique. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2303.15312v1-abstract-full').style.display = 'none'; document.getElementById('2303.15312v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 20 March, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 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">10 pages. Under review at NIM B as part of the proceedings of EMIS 2022 at RAON, South Korea</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2302.02165">arXiv:2302.02165</a> <span> [<a href="https://arxiv.org/pdf/2302.02165">pdf</a>, <a href="https://arxiv.org/format/2302.02165">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> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Atomic Physics">physics.atom-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1361-6633/ad1e39">10.1088/1361-6633/ad1e39 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Opportunities for Fundamental Physics Research with Radioactive Molecules </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Arrowsmith-Kron%2C+G">Gordon Arrowsmith-Kron</a>, <a href="/search/nucl-ex?searchtype=author&query=Athanasakis-Kaklamanakis%2C+M">Michail Athanasakis-Kaklamanakis</a>, <a href="/search/nucl-ex?searchtype=author&query=Au%2C+M">Mia Au</a>, <a href="/search/nucl-ex?searchtype=author&query=Ballof%2C+J">Jochen Ballof</a>, <a href="/search/nucl-ex?searchtype=author&query=Berger%2C+R">Robert Berger</a>, <a href="/search/nucl-ex?searchtype=author&query=Borschevsky%2C+A">Anastasia Borschevsky</a>, <a href="/search/nucl-ex?searchtype=author&query=Breier%2C+A+A">Alexander A. Breier</a>, <a href="/search/nucl-ex?searchtype=author&query=Buchinger%2C+F">Fritz Buchinger</a>, <a href="/search/nucl-ex?searchtype=author&query=Budker%2C+D">Dmitry Budker</a>, <a href="/search/nucl-ex?searchtype=author&query=Caldwell%2C+L">Luke Caldwell</a>, <a href="/search/nucl-ex?searchtype=author&query=Charles%2C+C">Christopher Charles</a>, <a href="/search/nucl-ex?searchtype=author&query=Dattani%2C+N">Nike Dattani</a>, <a href="/search/nucl-ex?searchtype=author&query=de+Groote%2C+R+P">Ruben P. de Groote</a>, <a href="/search/nucl-ex?searchtype=author&query=DeMille%2C+D">David DeMille</a>, <a href="/search/nucl-ex?searchtype=author&query=Dickel%2C+T">Timo Dickel</a>, <a href="/search/nucl-ex?searchtype=author&query=Dobaczewski%2C+J">Jacek Dobaczewski</a>, <a href="/search/nucl-ex?searchtype=author&query=D%C3%BCllmann%2C+C+E">Christoph E. D眉llmann</a>, <a href="/search/nucl-ex?searchtype=author&query=Eliav%2C+E">Ephraim Eliav</a>, <a href="/search/nucl-ex?searchtype=author&query=Engel%2C+J">Jon Engel</a>, <a href="/search/nucl-ex?searchtype=author&query=Fan%2C+M">Mingyu Fan</a>, <a href="/search/nucl-ex?searchtype=author&query=Flambaum%2C+V">Victor Flambaum</a>, <a href="/search/nucl-ex?searchtype=author&query=Flanagan%2C+K+T">Kieran T. Flanagan</a>, <a href="/search/nucl-ex?searchtype=author&query=Gaiser%2C+A">Alyssa Gaiser</a>, <a href="/search/nucl-ex?searchtype=author&query=Ruiz%2C+R+G">Ronald Garcia Ruiz</a>, <a href="/search/nucl-ex?searchtype=author&query=Gaul%2C+K">Konstantin Gaul</a> , et al. (37 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="2302.02165v1-abstract-short" style="display: inline;"> Molecules containing short-lived, radioactive nuclei are uniquely positioned to enable a wide range of scientific discoveries in the areas of fundamental symmetries, astrophysics, nuclear structure, and chemistry. Recent advances in the ability to create, cool, and control complex molecules down to the quantum level, along with recent and upcoming advances in radioactive species production at seve… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2302.02165v1-abstract-full').style.display = 'inline'; document.getElementById('2302.02165v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2302.02165v1-abstract-full" style="display: none;"> Molecules containing short-lived, radioactive nuclei are uniquely positioned to enable a wide range of scientific discoveries in the areas of fundamental symmetries, astrophysics, nuclear structure, and chemistry. Recent advances in the ability to create, cool, and control complex molecules down to the quantum level, along with recent and upcoming advances in radioactive species production at several facilities around the world, create a compelling opportunity to coordinate and combine these efforts to bring precision measurement and control to molecules containing extreme nuclei. In this manuscript, we review the scientific case for studying radioactive molecules, discuss recent atomic, molecular, nuclear, astrophysical, and chemical advances which provide the foundation for their study, describe the facilities where these species are and will be produced, and provide an outlook for the future of this nascent field. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2302.02165v1-abstract-full').style.display = 'none'; document.getElementById('2302.02165v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 4 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">Journal ref:</span> Rep. Prog. Phys. 87 084301 (2024) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2301.11064">arXiv:2301.11064</a> <span> [<a href="https://arxiv.org/pdf/2301.11064">pdf</a>, <a href="https://arxiv.org/format/2301.11064">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Atomic Physics">physics.atom-ph</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="Nuclear Theory">nucl-th</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Atomic and Molecular Clusters">physics.atm-clus</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/PhysRevX.13.011015">10.1103/PhysRevX.13.011015 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> King-plot analysis of isotope shifts in simple diatomic molecules </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Athanasakis-Kaklamanakis%2C+M">Michail Athanasakis-Kaklamanakis</a>, <a href="/search/nucl-ex?searchtype=author&query=Wilkins%2C+S+G">Shane G. Wilkins</a>, <a href="/search/nucl-ex?searchtype=author&query=Breier%2C+A+A">Alexander A. Breier</a>, <a href="/search/nucl-ex?searchtype=author&query=Neyens%2C+G">Gerda Neyens</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="2301.11064v1-abstract-short" style="display: inline;"> We demonstrate that the isotope shift in isotopomers of diatomic molecules, where the nucleus of one of its constituent atoms is replaced by another isotope, can be expressed as the sum of a field shift and a mass shift, similar to the atomic case. We show that a linear relation holds between atomic and molecular isotopes shifts, thus extending the King-plot analysis to molecular isotope shifts. O… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2301.11064v1-abstract-full').style.display = 'inline'; document.getElementById('2301.11064v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2301.11064v1-abstract-full" style="display: none;"> We demonstrate that the isotope shift in isotopomers of diatomic molecules, where the nucleus of one of its constituent atoms is replaced by another isotope, can be expressed as the sum of a field shift and a mass shift, similar to the atomic case. We show that a linear relation holds between atomic and molecular isotopes shifts, thus extending the King-plot analysis to molecular isotope shifts. Optical isotope shifts in YbF and ZrO and infrared isotope shifts in SnH are analyzed with a molecular King-plot approach, utilizing Yb$^{+}$ and Zr$^{+}$ ionic isotope shifts and charge radii of Sn obtained with non-optical methods. The changes in the mean-squared nuclear charge radii $未\langle r^2 \rangle$ of $^{170-174,176}$Yb and $^{90-92,94,96}$Zr extracted from the molecular transitions are found to be in excellent agreement with the values from the spectroscopy of Yb$^{+}$ and Zr$^{+}$, respectively. On the contrary, in the case of the vibrational-rotational transition in SnH, no sensitivity to the nuclear volume could be deduced within the experimental resolution, which makes it unsuitable for the extraction of nuclear charge radii but provides insights into the molecular electronic wave function not accessible via other methods. The new opportunities offered by the molecular King-plot analysis for research in nuclear structure and molecular physics are discussed. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2301.11064v1-abstract-full').style.display = 'none'; document.getElementById('2301.11064v1-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 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">Accepted at Physical Review X. Link to abstract: https://journals.aps.org/prx/accepted/be075Kf7E0c16505459d9fa833408356a593fd904</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. X 13, 011015 (2023) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2203.09111">arXiv:2203.09111</a> <span> [<a href="https://arxiv.org/pdf/2203.09111">pdf</a>, <a href="https://arxiv.org/format/2203.09111">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"> Electromagnetic moments of scandium isotopes and $N=28$ isotones in the distinctive $0f_{7/2}$ orbit </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+S+W">S. W. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Koszor%C3%BAs%2C+%C3%81">脕. Koszor煤s</a>, <a href="/search/nucl-ex?searchtype=author&query=Hu%2C+B+S">B. S. Hu</a>, <a href="/search/nucl-ex?searchtype=author&query=Yang%2C+X+F">X. F. Yang</a>, <a href="/search/nucl-ex?searchtype=author&query=Billowes%2C+J">J. Billowes</a>, <a href="/search/nucl-ex?searchtype=author&query=Binnersley%2C+C+L">C. L. Binnersley</a>, <a href="/search/nucl-ex?searchtype=author&query=Bissell%2C+M+L">M. L. Bissell</a>, <a href="/search/nucl-ex?searchtype=author&query=Blaum%2C+K">K. Blaum</a>, <a href="/search/nucl-ex?searchtype=author&query=Campbell%2C+P">P. Campbell</a>, <a href="/search/nucl-ex?searchtype=author&query=Cheal%2C+B">B. Cheal</a>, <a href="/search/nucl-ex?searchtype=author&query=Cocolios%2C+T+E">T. E. Cocolios</a>, <a href="/search/nucl-ex?searchtype=author&query=de+Groote%2C+R+P">R. P. de Groote</a>, <a href="/search/nucl-ex?searchtype=author&query=Devlin%2C+C+S">C. S. Devlin</a>, <a href="/search/nucl-ex?searchtype=author&query=Flanagan%2C+K+T">K. T. Flanagan</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=Heylen%2C+H">H. Heylen</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=Kanellakopoulos%2C+A">A. Kanellakopoulos</a>, <a href="/search/nucl-ex?searchtype=author&query=Kr%C3%A4mer%2C+J">J. Kr盲mer</a>, <a href="/search/nucl-ex?searchtype=author&query=Lagaki%2C+V">V. Lagaki</a>, <a href="/search/nucl-ex?searchtype=author&query=Maa%C3%9F%2C+B">B. Maa脽</a>, <a href="/search/nucl-ex?searchtype=author&query=Malbrunot-Ettenauer%2C+S">S. Malbrunot-Ettenauer</a>, <a href="/search/nucl-ex?searchtype=author&query=Miyagi%2C+T">T. Miyagi</a>, <a href="/search/nucl-ex?searchtype=author&query=Neugart%2C+R">R. Neugart</a>, <a href="/search/nucl-ex?searchtype=author&query=Neyens%2C+G">G. Neyens</a> , et al. (9 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2203.09111v2-abstract-short" style="display: inline;"> The electric quadrupole moment of $^{49}$Sc was measured by collinear laser spectroscopy at CERN-ISOLDE to be $Q_{\rm s}=-0.159(8)$ $e$b, and a nearly tenfold improvement in precision was reached for the electromagnetic moments of $^{47,49}$Sc. The single-particle behavior and nucleon-nucleon correlations are investigated with the electromagnetic moments of $Z=21$ isotopes and $N=28$ isotones as v… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2203.09111v2-abstract-full').style.display = 'inline'; document.getElementById('2203.09111v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2203.09111v2-abstract-full" style="display: none;"> The electric quadrupole moment of $^{49}$Sc was measured by collinear laser spectroscopy at CERN-ISOLDE to be $Q_{\rm s}=-0.159(8)$ $e$b, and a nearly tenfold improvement in precision was reached for the electromagnetic moments of $^{47,49}$Sc. The single-particle behavior and nucleon-nucleon correlations are investigated with the electromagnetic moments of $Z=21$ isotopes and $N=28$ isotones as valence neutrons and protons fill the distinctive $0f_{7/2}$ orbit, respectively, located between magic numbers, 20 and 28. The experimental data are interpreted with shell-model calculations using an effective interaction, and ab-initio valence-space in-medium similarity renormalization group calculations based on chiral interactions. These results highlight the sensitivity of nuclear electromagnetic moments to different types of nucleon-nucleon correlations, and establish an important benchmark for further developments of theoretical calculations. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2203.09111v2-abstract-full').style.display = 'none'; document.getElementById('2203.09111v2-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 March, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 17 March, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 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">Accepted by Physics Letters B (2022)</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2112.03382">arXiv:2112.03382</a> <span> [<a href="https://arxiv.org/pdf/2112.03382">pdf</a>, <a href="https://arxiv.org/format/2112.03382">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.128.022502">10.1103/PhysRevLett.128.022502 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Nuclear Charge Radii of the Nickel Isotopes $^{58-68,70}$Ni </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Malbrunot-Ettenauer%2C+S">S. Malbrunot-Ettenauer</a>, <a href="/search/nucl-ex?searchtype=author&query=Kaufmann%2C+S">S. Kaufmann</a>, <a href="/search/nucl-ex?searchtype=author&query=Bacca%2C+S">S. Bacca</a>, <a href="/search/nucl-ex?searchtype=author&query=Barbieri%2C+C">C. Barbieri</a>, <a href="/search/nucl-ex?searchtype=author&query=Billowes%2C+J">J. Billowes</a>, <a href="/search/nucl-ex?searchtype=author&query=Bissell%2C+M+L">M. L. Bissell</a>, <a href="/search/nucl-ex?searchtype=author&query=Blaum%2C+K">K. Blaum</a>, <a href="/search/nucl-ex?searchtype=author&query=Cheal%2C+B">B. Cheal</a>, <a href="/search/nucl-ex?searchtype=author&query=Duguet%2C+T">T. Duguet</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=Gins%2C+W">W. Gins</a>, <a href="/search/nucl-ex?searchtype=author&query=Gorges%2C+C">C. Gorges</a>, <a href="/search/nucl-ex?searchtype=author&query=Hagen%2C+G">G. Hagen</a>, <a href="/search/nucl-ex?searchtype=author&query=Heylen%2C+H">H. Heylen</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=Jansen%2C+G+R">G. R. Jansen</a>, <a href="/search/nucl-ex?searchtype=author&query=Kanellakopoulos%2C+A">A. Kanellakopoulos</a>, <a href="/search/nucl-ex?searchtype=author&query=Kortelainen%2C+M">M. Kortelainen</a>, <a href="/search/nucl-ex?searchtype=author&query=Miyagi%2C+T">T. Miyagi</a>, <a href="/search/nucl-ex?searchtype=author&query=Navr%C3%A1til%2C+P">P. Navr谩til</a>, <a href="/search/nucl-ex?searchtype=author&query=Nazarewicz%2C+W">W. Nazarewicz</a>, <a href="/search/nucl-ex?searchtype=author&query=Neugart%2C+R">R. Neugart</a>, <a href="/search/nucl-ex?searchtype=author&query=Neyens%2C+G">G. Neyens</a>, <a href="/search/nucl-ex?searchtype=author&query=N%C3%B6rtersh%C3%A4user%2C+W">W. N枚rtersh盲user</a>, <a href="/search/nucl-ex?searchtype=author&query=Novario%2C+S+J">S. J. Novario</a> , et al. (16 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2112.03382v1-abstract-short" style="display: inline;"> Collinear laser spectroscopy is performed on the nickel isotopes $^{58-68,70}$Ni, using a time-resolved photon counting system. From the measured isotope shifts, nuclear charge radii $R_c$ are extracted and compared to theoretical results. Three ab initio approaches all employ, among others, the chiral interaction NNLO$_{\rm sat}$, which allows an assessment of their accuracy. We find agreement wi… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2112.03382v1-abstract-full').style.display = 'inline'; document.getElementById('2112.03382v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2112.03382v1-abstract-full" style="display: none;"> Collinear laser spectroscopy is performed on the nickel isotopes $^{58-68,70}$Ni, using a time-resolved photon counting system. From the measured isotope shifts, nuclear charge radii $R_c$ are extracted and compared to theoretical results. Three ab initio approaches all employ, among others, the chiral interaction NNLO$_{\rm sat}$, which allows an assessment of their accuracy. We find agreement with experiment in differential radii $未\left\langle r_\mathrm{c}^2 \right\rangle$ for all employed ab initio methods and interactions, while the absolute radii are consistent with data only for NNLO$_{\rm sat}$. Within nuclear density functional theory, the Skyrme functional SV-min matches experiment more closely than the Fayans functional Fy($螖r$,HFB). <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2112.03382v1-abstract-full').style.display = 'none'; document.getElementById('2112.03382v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 6 December, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 128, 022502 (2021) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2105.10549">arXiv:2105.10549</a> <span> [<a href="https://arxiv.org/pdf/2105.10549">pdf</a>, <a href="https://arxiv.org/format/2105.10549">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> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Atomic Physics">physics.atom-ph</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.127.033001">10.1103/PhysRevLett.127.033001 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Isotope Shifts of Radium Monofluoride Molecules </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Udrescu%2C+S+M">S. M. Udrescu</a>, <a href="/search/nucl-ex?searchtype=author&query=Brinson%2C+A+J">A. J. Brinson</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=Gaul%2C+K">K. Gaul</a>, <a href="/search/nucl-ex?searchtype=author&query=Berger%2C+R">R. Berger</a>, <a href="/search/nucl-ex?searchtype=author&query=Billowes%2C+J">J. Billowes</a>, <a href="/search/nucl-ex?searchtype=author&query=Binnersley%2C+C+L">C. L. Binnersley</a>, <a href="/search/nucl-ex?searchtype=author&query=Bissell%2C+M+L">M. L. Bissell</a>, <a href="/search/nucl-ex?searchtype=author&query=Breier%2C+A+A">A. A. Breier</a>, <a href="/search/nucl-ex?searchtype=author&query=Chrysalidis%2C+K">K. Chrysalidis</a>, <a href="/search/nucl-ex?searchtype=author&query=Cocolios%2C+T+E">T. E. Cocolios</a>, <a href="/search/nucl-ex?searchtype=author&query=Cooper%2C+B+S">B. S. Cooper</a>, <a href="/search/nucl-ex?searchtype=author&query=Flanagan%2C+K+T">K. T. Flanagan</a>, <a href="/search/nucl-ex?searchtype=author&query=Giesen%2C+T+F">T. F. Giesen</a>, <a href="/search/nucl-ex?searchtype=author&query=de+Groote%2C+R+P">R. P. de Groote</a>, <a href="/search/nucl-ex?searchtype=author&query=Franchoo%2C+S">S. Franchoo</a>, <a href="/search/nucl-ex?searchtype=author&query=Gustafsson%2C+F+P">F. P. Gustafsson</a>, <a href="/search/nucl-ex?searchtype=author&query=Isaev%2C+T+A">T. A. Isaev</a>, <a href="/search/nucl-ex?searchtype=author&query=Koszorus%2C+A">A. Koszorus</a>, <a href="/search/nucl-ex?searchtype=author&query=Neyens%2C+G">G. Neyens</a>, <a href="/search/nucl-ex?searchtype=author&query=Perrett%2C+H+A">H. A. Perrett</a>, <a href="/search/nucl-ex?searchtype=author&query=Ricketts%2C+C+M">C. M. Ricketts</a>, <a href="/search/nucl-ex?searchtype=author&query=Rothe%2C+S">S. Rothe</a>, <a href="/search/nucl-ex?searchtype=author&query=Vernon%2C+A+R">A. R. Vernon</a>, <a href="/search/nucl-ex?searchtype=author&query=Wendt%2C+K+D+A">K. D. A. Wendt</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="2105.10549v1-abstract-short" style="display: inline;"> Isotope shifts of $^{223-226,228}$Ra$^{19}$F were measured for different vibrational levels in the electronic transition $A^{2}{}螤_{1/2}\leftarrow X^{2}{}危^{+}$. The observed isotope shifts demonstrate the particularly high sensitivity of radium monofluoride to nuclear size effects, offering a stringent test of models describing the electronic density within the radium nucleus. Ab initio quantum c… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2105.10549v1-abstract-full').style.display = 'inline'; document.getElementById('2105.10549v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2105.10549v1-abstract-full" style="display: none;"> Isotope shifts of $^{223-226,228}$Ra$^{19}$F were measured for different vibrational levels in the electronic transition $A^{2}{}螤_{1/2}\leftarrow X^{2}{}危^{+}$. The observed isotope shifts demonstrate the particularly high sensitivity of radium monofluoride to nuclear size effects, offering a stringent test of models describing the electronic density within the radium nucleus. Ab initio quantum chemical calculations are in excellent agreement with experimental observations. These results highlight some of the unique opportunities that short-lived molecules could offer in nuclear structure and in fundamental symmetry studies. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2105.10549v1-abstract-full').style.display = 'none'; document.getElementById('2105.10549v1-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 May, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">The paper was accepted for publication as a Letter in Physical Review Letters</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2012.01864">arXiv:2012.01864</a> <span> [<a href="https://arxiv.org/pdf/2012.01864">pdf</a>, <a href="https://arxiv.org/format/2012.01864">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> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Atomic Physics">physics.atom-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1038/s41567-020-01136-5">10.1038/s41567-020-01136-5 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Charge radii of exotic potassium isotopes challenge nuclear theory and the magic character of $N = 32$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Koszor%C3%BAs%2C+%C3%81">脕. Koszor煤s</a>, <a href="/search/nucl-ex?searchtype=author&query=Yang%2C+X+F">X. F. Yang</a>, <a href="/search/nucl-ex?searchtype=author&query=Jiang%2C+W+G">W. G. Jiang</a>, <a href="/search/nucl-ex?searchtype=author&query=Novario%2C+S+J">S. J. Novario</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+S+W">S. W. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Billowes%2C+J">J. Billowes</a>, <a href="/search/nucl-ex?searchtype=author&query=Binnersley%2C+C+L">C. L. Binnersley</a>, <a href="/search/nucl-ex?searchtype=author&query=Bissell%2C+M+L">M. L. Bissell</a>, <a href="/search/nucl-ex?searchtype=author&query=Cocolios%2C+T+E">T. E. Cocolios</a>, <a href="/search/nucl-ex?searchtype=author&query=Cooper%2C+B+S">B. S. Cooper</a>, <a href="/search/nucl-ex?searchtype=author&query=de+Groote%2C+R+P">R. P. de Groote</a>, <a href="/search/nucl-ex?searchtype=author&query=Ekstr%C3%B6m%2C+A">A. Ekstr枚m</a>, <a href="/search/nucl-ex?searchtype=author&query=Flanagan%2C+K+T">K. T. Flanagan</a>, <a href="/search/nucl-ex?searchtype=author&query=Forss%C3%A9n%2C+C">C. Forss茅n</a>, <a href="/search/nucl-ex?searchtype=author&query=Franchoo%2C+S">S. Franchoo</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=Gustafsson%2C+F+P">F. P. Gustafsson</a>, <a href="/search/nucl-ex?searchtype=author&query=Hagen%2C+G">G. Hagen</a>, <a href="/search/nucl-ex?searchtype=author&query=Jansen%2C+G+R">G. R. Jansen</a>, <a href="/search/nucl-ex?searchtype=author&query=Kanellakopoulos%2C+A">A. Kanellakopoulos</a>, <a href="/search/nucl-ex?searchtype=author&query=Kortelainen%2C+M">M. Kortelainen</a>, <a href="/search/nucl-ex?searchtype=author&query=Nazarewicz%2C+W">W. Nazarewicz</a>, <a href="/search/nucl-ex?searchtype=author&query=Neyens%2C+G">G. Neyens</a>, <a href="/search/nucl-ex?searchtype=author&query=Papenbrock%2C+T">T. Papenbrock</a>, <a href="/search/nucl-ex?searchtype=author&query=Reinhard%2C+P+-">P. -G. Reinhard</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="2012.01864v1-abstract-short" style="display: inline;"> Nuclear charge radii are sensitive probes of different aspects of the nucleon-nucleon interaction and the bulk properties of nuclear matter; thus, they provide a stringent test and challenge for nuclear theory. The calcium region has been of particular interest, as experimental evidence has suggested a new magic number at $N = 32$ [1-3], while the unexpectedly large increases in the charge radii [… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2012.01864v1-abstract-full').style.display = 'inline'; document.getElementById('2012.01864v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2012.01864v1-abstract-full" style="display: none;"> Nuclear charge radii are sensitive probes of different aspects of the nucleon-nucleon interaction and the bulk properties of nuclear matter; thus, they provide a stringent test and challenge for nuclear theory. The calcium region has been of particular interest, as experimental evidence has suggested a new magic number at $N = 32$ [1-3], while the unexpectedly large increases in the charge radii [4,5] open new questions about the evolution of nuclear size in neutron-rich systems. By combining the collinear resonance ionization spectroscopy method with $尾$-decay detection, we were able to extend the charge radii measurement of potassium ($Z =19$) isotopes up to the exotic $^{52}$K ($t_{1/2}$ = 110 ms), produced in minute quantities. Our work provides the first charge radii measurement beyond $N = 32$ in the region, revealing no signature of the magic character at this neutron number. The results are interpreted with two state-of-the-art nuclear theories. For the first time, a long sequence of isotopes could be calculated with coupled-cluster calculations based on newly developed nuclear interactions. The strong increase in the charge radii beyond $N = 28$ is not well captured by these calculations, but is well reproduced by Fayans nuclear density functional theory, which, however, overestimates the odd-even staggering effect. These findings highlight our limited understanding on the nuclear size of neutron-rich systems, and expose pressing problems that are present in some of the best current models of nuclear theory. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2012.01864v1-abstract-full').style.display = 'none'; document.getElementById('2012.01864v1-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 December, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">submitted version; revision accepted in Nature Physics</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Nature Physics 17, 439 (2021) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2011.01659">arXiv:2011.01659</a> <span> [<a href="https://arxiv.org/pdf/2011.01659">pdf</a>, <a href="https://arxiv.org/format/2011.01659">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Theory">nucl-th</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevC.102.054331">10.1103/PhysRevC.102.054331 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Nuclear Moments of Germanium Isotopes around $N$ = 40 </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Kanellakopoulos%2C+A">A. Kanellakopoulos</a>, <a href="/search/nucl-ex?searchtype=author&query=Yang%2C+X+F">X. F. Yang</a>, <a href="/search/nucl-ex?searchtype=author&query=Bissell%2C+M+L">M. L. Bissell</a>, <a href="/search/nucl-ex?searchtype=author&query=Reitsma%2C+M+L">M. L. Reitsma</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+S+W">S. W. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Billowes%2C+J">J. Billowes</a>, <a href="/search/nucl-ex?searchtype=author&query=Blaum%2C+K">K. Blaum</a>, <a href="/search/nucl-ex?searchtype=author&query=Borschevsky%2C+A">A. Borschevsky</a>, <a href="/search/nucl-ex?searchtype=author&query=Cheal%2C+B">B. Cheal</a>, <a href="/search/nucl-ex?searchtype=author&query=Devlin%2C+C+S">C. S. Devlin</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=Heylen%2C+H">H. Heylen</a>, <a href="/search/nucl-ex?searchtype=author&query=Kaufmann%2C+S">S. Kaufmann</a>, <a href="/search/nucl-ex?searchtype=author&query=K%C3%B6nig%2C+K">K. K枚nig</a>, <a href="/search/nucl-ex?searchtype=author&query=Koszor%C3%BAs%2C+%C3%81">脕. Koszor煤s</a>, <a href="/search/nucl-ex?searchtype=author&query=Lechner%2C+S">S. Lechner</a>, <a href="/search/nucl-ex?searchtype=author&query=Malbrunot-Ettenauer%2C+S">S. Malbrunot-Ettenauer</a>, <a href="/search/nucl-ex?searchtype=author&query=Neugart%2C+R">R. Neugart</a>, <a href="/search/nucl-ex?searchtype=author&query=Neyens%2C+G">G. Neyens</a>, <a href="/search/nucl-ex?searchtype=author&query=N%C3%B6rtersh%C3%A4user%2C+W">W. N枚rtersh盲user</a>, <a href="/search/nucl-ex?searchtype=author&query=Ratajczyk%2C+T">T. Ratajczyk</a>, <a href="/search/nucl-ex?searchtype=author&query=Rodr%C3%ADguez%2C+L+V">L. V. Rodr铆guez</a>, <a href="/search/nucl-ex?searchtype=author&query=Sels%2C+S">S. Sels</a>, <a href="/search/nucl-ex?searchtype=author&query=Wang%2C+S+J">S. J. Wang</a>, <a href="/search/nucl-ex?searchtype=author&query=Xie%2C+L">L. Xie</a> , et al. (2 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2011.01659v1-abstract-short" style="display: inline;"> Collinear laser spectroscopy measurements were performed on $^{69,71,73}$Ge isotopes ($Z = 32$) at ISOLDE-CERN. The hyperfine structure of the $4s^2 4p^2 \, ^3P_1 \rightarrow 4s^2 4p 5s \, ^3P_1^o$ transition of the germanium atom was probed with laser light of 269 nm, produced by combining the frequency-mixing and frequency-doubling techniques. The hyperfine fields for both atomic levels were cal… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2011.01659v1-abstract-full').style.display = 'inline'; document.getElementById('2011.01659v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2011.01659v1-abstract-full" style="display: none;"> Collinear laser spectroscopy measurements were performed on $^{69,71,73}$Ge isotopes ($Z = 32$) at ISOLDE-CERN. The hyperfine structure of the $4s^2 4p^2 \, ^3P_1 \rightarrow 4s^2 4p 5s \, ^3P_1^o$ transition of the germanium atom was probed with laser light of 269 nm, produced by combining the frequency-mixing and frequency-doubling techniques. The hyperfine fields for both atomic levels were calculated using state-of-the-art atomic relativistic Fock-space coupled-cluster calculations. A new $^{73}$Ge quadrupole moment was determined from these calculations and previously measured precision hyperfine parameters, yielding $Q_{\rm s}$ = $-$0.198(4) b, in excellent agreement with the literature value from molecular calculations. The moments of $^{69}$Ge have been revised: $渭$ = +0.920(5) $渭_{N}$ and $Q_{\rm s}$= +0.114(8) b, and those of $^{71}$Ge have been confirmed. The experimental moments around $N = 40$ are interpreted with large-scale shell-model calculations using the JUN45 interaction, revealing rather mixed wave function configurations, although their $g$-factors are lying close to the effective single-particle values. Through a comparison with neighboring isotones, the structural change from the single-particle nature of nickel to deformation in germanium is further investigated around $N = 40$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2011.01659v1-abstract-full').style.display = 'none'; document.getElementById('2011.01659v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 3 November, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">accepted in Phys. Rev. C., in production</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2010.06918">arXiv:2010.06918</a> <span> [<a href="https://arxiv.org/pdf/2010.06918">pdf</a>, <a href="https://arxiv.org/format/2010.06918">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.103.014318">10.1103/PhysRevC.103.014318 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> High-resolution laser spectroscopy of $^{27-32}$Al </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Heylen%2C+H">H. Heylen</a>, <a href="/search/nucl-ex?searchtype=author&query=Devlin%2C+C+S">C. S. Devlin</a>, <a href="/search/nucl-ex?searchtype=author&query=Gins%2C+W">W. Gins</a>, <a href="/search/nucl-ex?searchtype=author&query=Bissell%2C+M+L">M. L. Bissell</a>, <a href="/search/nucl-ex?searchtype=author&query=Blaum%2C+K">K. Blaum</a>, <a href="/search/nucl-ex?searchtype=author&query=Cheal%2C+B">B. Cheal</a>, <a href="/search/nucl-ex?searchtype=author&query=Filippin%2C+L">L. Filippin</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=Godefroid%2C+M">M. Godefroid</a>, <a href="/search/nucl-ex?searchtype=author&query=Gorges%2C+C">C. Gorges</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=Kanellakopoulos%2C+A">A. Kanellakopoulos</a>, <a href="/search/nucl-ex?searchtype=author&query=Kaufmann%2C+S">S. Kaufmann</a>, <a href="/search/nucl-ex?searchtype=author&query=Koszor%C3%BAs%2C+%C3%81">脕. Koszor煤s</a>, <a href="/search/nucl-ex?searchtype=author&query=K%C3%B6nig%2C+K">K. K枚nig</a>, <a href="/search/nucl-ex?searchtype=author&query=Malbrunot-Ettanauer%2C+S">S. Malbrunot-Ettanauer</a>, <a href="/search/nucl-ex?searchtype=author&query=Miyagi%2C+T">T. Miyagi</a>, <a href="/search/nucl-ex?searchtype=author&query=Neugart%2C+R">R. Neugart</a>, <a href="/search/nucl-ex?searchtype=author&query=Neyens%2C+G">G. Neyens</a>, <a href="/search/nucl-ex?searchtype=author&query=N%C3%B6rtersh%C3%A4user%2C+W">W. N枚rtersh盲user</a>, <a href="/search/nucl-ex?searchtype=author&query=S%C3%A1nchez%2C+R">R. S谩nchez</a>, <a href="/search/nucl-ex?searchtype=author&query=Sommer%2C+F">F. Sommer</a>, <a href="/search/nucl-ex?searchtype=author&query=Rodr%C3%ADguez%2C+L+V">L. V. Rodr铆guez</a>, <a href="/search/nucl-ex?searchtype=author&query=Xie%2C+L">L. Xie</a>, <a href="/search/nucl-ex?searchtype=author&query=Xu%2C+Z+Y">Z. Y. Xu</a> , et al. (2 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2010.06918v1-abstract-short" style="display: inline;"> Hyperfine spectra of $^\text{27-32}$Al ($Z=13$) have been measured at the ISOLDE-CERN facility via collinear laser spectroscopy using the $3s^23p\ ^2\text{P}^\text{o} _{3/2}\rightarrow 3s^24s\ ^2\text{S}_{1/2}$ atomic transition. For the first time, mean-square charge radii of radioactive aluminum isotopes have been determined alongside the previously unknown magnetic dipole moment of $^{29}$Al an… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2010.06918v1-abstract-full').style.display = 'inline'; document.getElementById('2010.06918v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2010.06918v1-abstract-full" style="display: none;"> Hyperfine spectra of $^\text{27-32}$Al ($Z=13$) have been measured at the ISOLDE-CERN facility via collinear laser spectroscopy using the $3s^23p\ ^2\text{P}^\text{o} _{3/2}\rightarrow 3s^24s\ ^2\text{S}_{1/2}$ atomic transition. For the first time, mean-square charge radii of radioactive aluminum isotopes have been determined alongside the previously unknown magnetic dipole moment of $^{29}$Al and electric quadrupole moments of $^{29,30}$Al. A potentially reduced charge radius at $N=19$ may suggest an effect of the $N=20$ shell closure, which is visible in the Al chain, contrary to other isotopic chains in the $sd$ shell. The experimental results are compared to theoretical calculations in the framework of the valence-space in-medium similarity renormalization group using multiple sets of two and three-nucleon forces from chiral effective field theory. While the trend of experimental magnetic dipole and electric quadrupole moments is well reproduced, the absolute values are underestimated by theory, consistent with earlier studies. Moreover, both the scale and trend of the charge radii appear to be very sensitive to the chosen interaction. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2010.06918v1-abstract-full').style.display = 'none'; document.getElementById('2010.06918v1-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 October, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. C 103, 014318 (2021) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2004.02820">arXiv:2004.02820</a> <span> [<a href="https://arxiv.org/pdf/2004.02820">pdf</a>, <a href="https://arxiv.org/format/2004.02820">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Chemical Physics">physics.chem-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevX.10.041061">10.1103/PhysRevX.10.041061 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Magnetic moments of short-lived nuclei with part-per-million accuracy: Towards novel applications of $尾$-detected NMR in physics, chemistry and biology </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Harding%2C+R+D">R. D. Harding</a>, <a href="/search/nucl-ex?searchtype=author&query=Pallada%2C+S">S. Pallada</a>, <a href="/search/nucl-ex?searchtype=author&query=Croese%2C+J">J. Croese</a>, <a href="/search/nucl-ex?searchtype=author&query=Antu%C5%A1ek%2C+A+A">A. A. Antu拧ek</a>, <a href="/search/nucl-ex?searchtype=author&query=Baranowski%2C+M">M. Baranowski</a>, <a href="/search/nucl-ex?searchtype=author&query=Bissell%2C+M+L">M. L. Bissell</a>, <a href="/search/nucl-ex?searchtype=author&query=Cerato%2C+L">L. Cerato</a>, <a href="/search/nucl-ex?searchtype=author&query=Dziubinska-K%C3%BChn"> Dziubinska-K眉hn</a>, <a href="/search/nucl-ex?searchtype=author&query=Gins%2C+W">W. Gins</a>, <a href="/search/nucl-ex?searchtype=author&query=Gustafsson%2C+F+P">F. P. Gustafsson</a>, <a href="/search/nucl-ex?searchtype=author&query=Javaji%2C+A">A. Javaji</a>, <a href="/search/nucl-ex?searchtype=author&query=Jolivet%2C+R+B">R. B. Jolivet</a>, <a href="/search/nucl-ex?searchtype=author&query=Kanellakopoulos%2C+A">A. Kanellakopoulos</a>, <a href="/search/nucl-ex?searchtype=author&query=Karg%2C+B">B. Karg</a>, <a href="/search/nucl-ex?searchtype=author&query=Kocman%2C+M+K+V">M. Kempka V. Kocman</a>, <a href="/search/nucl-ex?searchtype=author&query=Kozak%2C+M">M. Kozak</a>, <a href="/search/nucl-ex?searchtype=author&query=Kulesz%2C+K">K. Kulesz</a>, <a href="/search/nucl-ex?searchtype=author&query=Flores%2C+M+M">M. Madurga Flores</a>, <a href="/search/nucl-ex?searchtype=author&query=Neyens%2C+G">G. Neyens</a>, <a href="/search/nucl-ex?searchtype=author&query=Plavec%2C+R+P+J">R. Pietrzyk J. Plavec</a>, <a href="/search/nucl-ex?searchtype=author&query=Pomorski%2C+M">M. Pomorski</a>, <a href="/search/nucl-ex?searchtype=author&query=Skrzypczak%2C+A">A. Skrzypczak</a>, <a href="/search/nucl-ex?searchtype=author&query=Wagenknecht%2C+P">P. Wagenknecht</a>, <a href="/search/nucl-ex?searchtype=author&query=Wienholtz%2C+F">F. Wienholtz</a>, <a href="/search/nucl-ex?searchtype=author&query=Xu%2C+J+W+Z">J. Wolak Z. Xu</a> , et al. (2 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2004.02820v2-abstract-short" style="display: inline;"> We determine for the first time the magnetic dipole moment of a short-lived nucleus with part-per-million (ppm) accuracy. To achieve this two orders of magnitude improvement over previous studies, we implement a number of innovations into our $尾$-detected Nuclear Magnetic Resonance ($尾$-NMR) setup at ISOLDE/CERN. Using liquid samples as hosts we obtain narrow, sub-kHz linewidth, resonances, while… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2004.02820v2-abstract-full').style.display = 'inline'; document.getElementById('2004.02820v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2004.02820v2-abstract-full" style="display: none;"> We determine for the first time the magnetic dipole moment of a short-lived nucleus with part-per-million (ppm) accuracy. To achieve this two orders of magnitude improvement over previous studies, we implement a number of innovations into our $尾$-detected Nuclear Magnetic Resonance ($尾$-NMR) setup at ISOLDE/CERN. Using liquid samples as hosts we obtain narrow, sub-kHz linewidth, resonances, while a simultaneous in-situ $^1$H NMR measurement allows us to calibrate and stabilize the magnetic field to ppm precision, thus eliminating the need for additional $尾$-NMR reference measurements. Furthermore, we use ab initio calculations of NMR shielding constants to improve the accuracy of the reference magnetic moment, thus removing a large systematic error. We demonstrate the potential of this combined approach with the 1.1 s half-life radioactive nucleus $^{26}$Na, which is relevant for biochemical studies. Our technique can be readily extended to other isotopic chains, providing accurate magnetic moments for many short-lived nuclei. Furthermore, we discuss how our approach can open the path towards a wide range of applications of the ultra-sensitive $尾$-NMR in physics, chemistry, and biology. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2004.02820v2-abstract-full').style.display = 'none'; document.getElementById('2004.02820v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 9 September, 2020; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 6 April, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">re-submitted</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. X 10, 041061 (2020) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2003.06353">arXiv:2003.06353</a> <span> [<a href="https://arxiv.org/pdf/2003.06353">pdf</a>, <a href="https://arxiv.org/format/2003.06353">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.124.132502">10.1103/PhysRevLett.124.132502 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Charge radius of the short-lived $^{68}$Ni and correlation with the dipole polarizability </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Kaufmann%2C+S">S. Kaufmann</a>, <a href="/search/nucl-ex?searchtype=author&query=Simonis%2C+J">J. Simonis</a>, <a href="/search/nucl-ex?searchtype=author&query=Bacca%2C+S">S. Bacca</a>, <a href="/search/nucl-ex?searchtype=author&query=Billowes%2C+J">J. Billowes</a>, <a href="/search/nucl-ex?searchtype=author&query=Bissell%2C+M+L">M. L. Bissell</a>, <a href="/search/nucl-ex?searchtype=author&query=Blaum%2C+K">K. Blaum</a>, <a href="/search/nucl-ex?searchtype=author&query=Cheal%2C+B">B. Cheal</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=Gins%2C+W">W. Gins</a>, <a href="/search/nucl-ex?searchtype=author&query=Gorges%2C+C">C. Gorges</a>, <a href="/search/nucl-ex?searchtype=author&query=Hagen%2C+G">G. Hagen</a>, <a href="/search/nucl-ex?searchtype=author&query=Heylen%2C+H">H. Heylen</a>, <a href="/search/nucl-ex?searchtype=author&query=Kanellakopoulos%2C+A">A. Kanellakopoulos</a>, <a href="/search/nucl-ex?searchtype=author&query=Malbrunot-Ettenauer%2C+S">S. Malbrunot-Ettenauer</a>, <a href="/search/nucl-ex?searchtype=author&query=Miorelli%2C+M">M. Miorelli</a>, <a href="/search/nucl-ex?searchtype=author&query=Neugart%2C+R">R. Neugart</a>, <a href="/search/nucl-ex?searchtype=author&query=Neyens%2C+G">G. Neyens</a>, <a href="/search/nucl-ex?searchtype=author&query=N%C3%B6rtersh%C3%A4user%2C+W">W. N枚rtersh盲user</a>, <a href="/search/nucl-ex?searchtype=author&query=S%C3%A1nchez%2C+R">R. S谩nchez</a>, <a href="/search/nucl-ex?searchtype=author&query=Sailer%2C+S">S. Sailer</a>, <a href="/search/nucl-ex?searchtype=author&query=Schwenk%2C+A">A. Schwenk</a>, <a href="/search/nucl-ex?searchtype=author&query=Ratajczyk%2C+T">T. Ratajczyk</a>, <a href="/search/nucl-ex?searchtype=author&query=Rodr%C3%ADguez%2C+L+V">L. V. Rodr铆guez</a>, <a href="/search/nucl-ex?searchtype=author&query=Wehner%2C+L">L. Wehner</a>, <a href="/search/nucl-ex?searchtype=author&query=Wraith%2C+C">C. Wraith</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="2003.06353v1-abstract-short" style="display: inline;"> We present the first laser spectroscopic measurement of the neutron-rich nucleus $^{68}$Ni at the \mbox{$N=40$} subshell closure and extract its nuclear charge radius. Since this is the only short-lived isotope for which the dipole polarizability $伪_{\rm D}$ has been measured, the combination of these observables provides a benchmark for nuclear structure theory. We compare them to novel coupled-c… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2003.06353v1-abstract-full').style.display = 'inline'; document.getElementById('2003.06353v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2003.06353v1-abstract-full" style="display: none;"> We present the first laser spectroscopic measurement of the neutron-rich nucleus $^{68}$Ni at the \mbox{$N=40$} subshell closure and extract its nuclear charge radius. Since this is the only short-lived isotope for which the dipole polarizability $伪_{\rm D}$ has been measured, the combination of these observables provides a benchmark for nuclear structure theory. We compare them to novel coupled-cluster calculations based on different chiral two- and three-nucleon interactions, for which a strong correlation between the charge radius and dipole polarizability is observed, similar to the stable nucleus $^{48}$Ca. Three-particle--three-hole correlations in coupled-cluster theory substantially improve the description of the experimental data, which allows to constrain the neutron radius and neutron skin of $^{68}$Ni. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2003.06353v1-abstract-full').style.display = 'none'; document.getElementById('2003.06353v1-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 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">Comments:</span> <span class="has-text-grey-dark mathjax">6 pages, 3 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/1911.08765">arXiv:1911.08765</a> <span> [<a href="https://arxiv.org/pdf/1911.08765">pdf</a>, <a href="https://arxiv.org/format/1911.08765">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/10.1038/s41567-020-0868-y">10.1038/s41567-020-0868-y <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement and microscopic description of odd-even staggering of charge radii of exotic copper isotopes </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=de+Groote%2C+R+P">R. P. de Groote</a>, <a href="/search/nucl-ex?searchtype=author&query=Billowes%2C+J">J. Billowes</a>, <a href="/search/nucl-ex?searchtype=author&query=Binnersley%2C+C+L">C. L. Binnersley</a>, <a href="/search/nucl-ex?searchtype=author&query=Bissell%2C+M+L">M. L. Bissell</a>, <a href="/search/nucl-ex?searchtype=author&query=Cocolios%2C+T+E">T. E. Cocolios</a>, <a href="/search/nucl-ex?searchtype=author&query=Goodacre%2C+T+D">T. Day Goodacre</a>, <a href="/search/nucl-ex?searchtype=author&query=Farooq-Smith%2C+G+J">G. J. Farooq-Smith</a>, <a href="/search/nucl-ex?searchtype=author&query=Fedorov%2C+D+V">D. V. Fedorov</a>, <a href="/search/nucl-ex?searchtype=author&query=Flanagan%2C+K+T">K. T. Flanagan</a>, <a href="/search/nucl-ex?searchtype=author&query=Franchoo%2C+S">S. Franchoo</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=Gins%2C+W">W. Gins</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=Koszor%C3%BAs%2C+%C3%81">脕. Koszor煤s</a>, <a href="/search/nucl-ex?searchtype=author&query=Lynch%2C+K+M">K. M. Lynch</a>, <a href="/search/nucl-ex?searchtype=author&query=Miyagi%2C+T">T. Miyagi</a>, <a href="/search/nucl-ex?searchtype=author&query=Nazarewicz%2C+W">W. Nazarewicz</a>, <a href="/search/nucl-ex?searchtype=author&query=Neyens%2C+G">G. Neyens</a>, <a href="/search/nucl-ex?searchtype=author&query=Reinhard%2C+P+-">P. -G. Reinhard</a>, <a href="/search/nucl-ex?searchtype=author&query=Rothe%2C+S">S. Rothe</a>, <a href="/search/nucl-ex?searchtype=author&query=Stroke%2C+H+H">H. H. Stroke</a>, <a href="/search/nucl-ex?searchtype=author&query=Vernon%2C+A+R">A. R. Vernon</a>, <a href="/search/nucl-ex?searchtype=author&query=Wendt%2C+K+D+A">K. D. A. Wendt</a>, <a href="/search/nucl-ex?searchtype=author&query=Wilkins%2C+S+G">S. G. Wilkins</a>, <a href="/search/nucl-ex?searchtype=author&query=Xu%2C+Z+Y">Z. Y. Xu</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="1911.08765v3-abstract-short" style="display: inline;"> The mesoscopic nature of the atomic nucleus gives rise to a wide array of macroscopic and microscopic phenomena. The size of the nucleus is a window into this duality: while the charge radii globally scale as $A^{1/3}$, their evolution across isotopic chains reveals unanticipated structural phenomena [1-3]. The most ubiquitous of these is perhaps the Odd-Even Staggering (OES) [4]: isotopes with an… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1911.08765v3-abstract-full').style.display = 'inline'; document.getElementById('1911.08765v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1911.08765v3-abstract-full" style="display: none;"> The mesoscopic nature of the atomic nucleus gives rise to a wide array of macroscopic and microscopic phenomena. The size of the nucleus is a window into this duality: while the charge radii globally scale as $A^{1/3}$, their evolution across isotopic chains reveals unanticipated structural phenomena [1-3]. The most ubiquitous of these is perhaps the Odd-Even Staggering (OES) [4]: isotopes with an odd number of neutrons are usually smaller in size than the trend of their even-neutron neighbours suggests. This OES effect varies with the number of protons and neutrons and poses a significant challenge for nuclear theory [5-7]. Here, we examine this problem with new measurements of the charge radii of short-lived copper isotopes up to the very exotic $^{78}$Cu $(Z=29, N=49)$, produced at only 20 ions/s, using the highly-sensitive Collinear Resonance Ionisation Spectroscopy (CRIS) method at ISOLDE-CERN. Due to the presence of a single proton outside of the closed Z=28 shell, these measurements provide crucial insights into the single-particle proton structure and how this affects the charge radii. We observe an unexpected reduction in the OES for isotopes approaching the $N=50$ shell gap. To describe the data, we applied models based on nuclear Density Functional Theory [2,8] (DFT) and ab-initio Valence-Space In-Medium Similarity Renormalization Group (VS-IMSRG) theory [9,10]. Through these comparisons, we demonstrate a relation between the global behavior of charge radii and the saturation density of nuclear matter, and show that the local charge radii variations, which reflect the many-body polarization effects due to the odd neutron, naturally emerge from the VS-IMSRG calculations. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1911.08765v3-abstract-full').style.display = 'none'; document.getElementById('1911.08765v3-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 March, 2020; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 20 November, 2019; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2019. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1911.02812">arXiv:1911.02812</a> <span> [<a href="https://arxiv.org/pdf/1911.02812">pdf</a>, <a href="https://arxiv.org/format/1911.02812">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Atomic Physics">physics.atom-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1367-2630/ab66dd">10.1088/1367-2630/ab66dd <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Analytic Response Relativistic Coupled-Cluster Theory: The first application to indium isotope shifts </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Sahoo%2C+B+K">B. K. Sahoo</a>, <a href="/search/nucl-ex?searchtype=author&query=Vernon%2C+A+R">A. R. Vernon</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=Binnersley%2C+C+L">C. L. Binnersley</a>, <a href="/search/nucl-ex?searchtype=author&query=Billowes%2C+J">J. Billowes</a>, <a href="/search/nucl-ex?searchtype=author&query=Bissell%2C+M+L">M. L. Bissell</a>, <a href="/search/nucl-ex?searchtype=author&query=Cocolios%2C+T+E">T. E. Cocolios</a>, <a href="/search/nucl-ex?searchtype=author&query=Farooq-Smith%2C+G+J">G. J. Farooq-Smith</a>, <a href="/search/nucl-ex?searchtype=author&query=Flanagan%2C+K+T">K. T. Flanagan</a>, <a href="/search/nucl-ex?searchtype=author&query=Gins%2C+W">W. Gins</a>, <a href="/search/nucl-ex?searchtype=author&query=de+Groote%2C+R+P">R. P. de Groote</a>, <a href="/search/nucl-ex?searchtype=author&query=Koszorus%2C+A">A. Koszorus</a>, <a href="/search/nucl-ex?searchtype=author&query=Neyens%2C+G">G. Neyens</a>, <a href="/search/nucl-ex?searchtype=author&query=Lynch%2C+K+M">K. M. Lynch</a>, <a href="/search/nucl-ex?searchtype=author&query=Parnefjord-Gustafsson%2C+F">F. Parnefjord-Gustafsson</a>, <a href="/search/nucl-ex?searchtype=author&query=Ricketts%2C+C+M">C. M. Ricketts</a>, <a href="/search/nucl-ex?searchtype=author&query=Wendt%2C+K+D+A">K. D. A Wendt</a>, <a href="/search/nucl-ex?searchtype=author&query=Wilkins%2C+S+G">S. G. Wilkins</a>, <a href="/search/nucl-ex?searchtype=author&query=Yang%2C+X+F">X. F. Yang</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="1911.02812v1-abstract-short" style="display: inline;"> With increasing demand for accurate calculation of isotope shifts of atomic systems for fundamental and nuclear structure research, an analytic energy derivative approach is presented in the relativistic coupled-cluster theory framework to determine the atomic field shift and mass shift factors. This approach allows the determination of expectation values of atomic operators, overcoming fundamenta… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1911.02812v1-abstract-full').style.display = 'inline'; document.getElementById('1911.02812v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1911.02812v1-abstract-full" style="display: none;"> With increasing demand for accurate calculation of isotope shifts of atomic systems for fundamental and nuclear structure research, an analytic energy derivative approach is presented in the relativistic coupled-cluster theory framework to determine the atomic field shift and mass shift factors. This approach allows the determination of expectation values of atomic operators, overcoming fundamental problems that are present in existing atomic physics methods, i.e. it satisfies the Hellmann-Feynman theorem, does not involve any non-terminating series, and is free from choice of any perturbative parameter. As a proof of concept, the developed analytic response relativistic coupled-cluster theory has been applied to determine mass shift and field shift factors for different atomic states of indium. High-precision isotope-shift measurements of $^{104-127}$In were performed in the 246.8-nm (5p $^2$P$_{3/2}$ $\rightarrow$ 9s $^2$S$_{1/2}$) and 246.0-nm (5p $^2$P$_{1/2}$ $\rightarrow$ 8s $^2$S$_{1/2}$) transitions to test our theoretical results. An excellent agreement between the theoretical and measured values is found, which is known to be challenging in multi-electron atoms. The calculated atomic factors allowed an accurate determination of the nuclear charge radii of the ground and isomeric states of the $^{104-127}$In isotopes, providing an isotone-independent comparison of the absolute charge radii. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1911.02812v1-abstract-full').style.display = 'none'; document.getElementById('1911.02812v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 7 November, 2019; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 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">Submitted</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1910.13416">arXiv:1910.13416</a> <span> [<a href="https://arxiv.org/pdf/1910.13416">pdf</a>, <a href="https://arxiv.org/format/1910.13416">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Theory">nucl-th</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Theory">hep-th</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1038/s41586-020-2299-4">10.1038/s41586-020-2299-4 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Spectroscopy of short-lived radioactive molecules: A sensitive laboratory for new physics </p> <p class="authors"> <span class="search-hit">Authors:</span> <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=Berger%2C+R">R. Berger</a>, <a href="/search/nucl-ex?searchtype=author&query=Billowes%2C+J">J. Billowes</a>, <a href="/search/nucl-ex?searchtype=author&query=Binnersley%2C+C+L">C. L. Binnersley</a>, <a href="/search/nucl-ex?searchtype=author&query=Bissell%2C+M+L">M. L. Bissell</a>, <a href="/search/nucl-ex?searchtype=author&query=Breier%2C+A+A">A. A. Breier</a>, <a href="/search/nucl-ex?searchtype=author&query=Brinson%2C+A+J">A. J. Brinson</a>, <a href="/search/nucl-ex?searchtype=author&query=Chrysalidis%2C+K">K. Chrysalidis</a>, <a href="/search/nucl-ex?searchtype=author&query=Cocolios%2C+T">T. Cocolios</a>, <a href="/search/nucl-ex?searchtype=author&query=Cooper%2C+B">B. Cooper</a>, <a href="/search/nucl-ex?searchtype=author&query=Flanagan%2C+K+T">K. T. Flanagan</a>, <a href="/search/nucl-ex?searchtype=author&query=Giesen%2C+T+F">T. F. Giesen</a>, <a href="/search/nucl-ex?searchtype=author&query=de+Groote%2C+R+P">R. P. de Groote</a>, <a href="/search/nucl-ex?searchtype=author&query=Franchoo%2C+S">S. Franchoo</a>, <a href="/search/nucl-ex?searchtype=author&query=Gustafsson%2C+F+P">F. P. Gustafsson</a>, <a href="/search/nucl-ex?searchtype=author&query=Isaev%2C+T+A">T. A. Isaev</a>, <a href="/search/nucl-ex?searchtype=author&query=Koszorus%2C+A">A. Koszorus</a>, <a href="/search/nucl-ex?searchtype=author&query=Neyens%2C+G">G. Neyens</a>, <a href="/search/nucl-ex?searchtype=author&query=Perrett%2C+H+A">H. A. Perrett</a>, <a href="/search/nucl-ex?searchtype=author&query=Ricketts%2C+C+M">C. M. Ricketts</a>, <a href="/search/nucl-ex?searchtype=author&query=Rothe%2C+S">S. Rothe</a>, <a href="/search/nucl-ex?searchtype=author&query=Schweikhard%2C+L">L. Schweikhard</a>, <a href="/search/nucl-ex?searchtype=author&query=Vernon%2C+A+R">A. R. Vernon</a>, <a href="/search/nucl-ex?searchtype=author&query=Wendt%2C+K+D+A">K. D. A. Wendt</a>, <a href="/search/nucl-ex?searchtype=author&query=Wienholtz%2C+F">F. Wienholtz</a> , et al. (2 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1910.13416v1-abstract-short" style="display: inline;"> The study of molecular systems provides exceptional opportunities for the exploration of the fundamental laws of nature and for the search for physics beyond the Standard Model of particle physics. Measurements of molecules composed of naturally occurring nuclei have provided the most stringent upper bounds to the electron electric dipole moment to date, and offer a route to investigate the violat… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1910.13416v1-abstract-full').style.display = 'inline'; document.getElementById('1910.13416v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1910.13416v1-abstract-full" style="display: none;"> The study of molecular systems provides exceptional opportunities for the exploration of the fundamental laws of nature and for the search for physics beyond the Standard Model of particle physics. Measurements of molecules composed of naturally occurring nuclei have provided the most stringent upper bounds to the electron electric dipole moment to date, and offer a route to investigate the violation of fundamental symmetries with unprecedented sensitivity. Radioactive molecules - where one or more of their atoms possesses a radioactive nucleus - can contain heavy and deformed nuclei, offering superior sensitivity for EDM measurements as well as for other symmetry-violating effects. Radium monofluoride, RaF, is of particular interest as it is predicted to have an appropriate electronic structure for direct laser cooling. Furthermore, some Ra isotopes are known to be octupole deformed, thereby resulting in a large enhancement of their symmetry-violating nuclear moments. Until now,however, no experimental measurements of RaF have been performed, and their study is impeded by major experimental challenges, as no stable isotopes of radium exist. Here, we present a novel experimental approach to study short-lived radioactive molecules using the highly sensitive collinear resonance ionisation method. With this technique we have measured, for the first time, the energetically low-lying electronic states for each of the isotopically pure RaF molecules at the ISOLDE-CERN. Our results provide strong evidence of the existence of a suitable laser-cooling scheme for these molecules and constitute a pivotal step towards high-precision studies in these systems. Our findings open up new opportunities in the synthesis, manipulation and study of short-lived radioactive molecules, which will have a direct impact in many-body physics, astrophysics, nuclear structure, and fundamental physics research. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1910.13416v1-abstract-full').style.display = 'none'; document.getElementById('1910.13416v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 29 October, 2019; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2019. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Submitted</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Nature 581, 396 (2020) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1905.05580">arXiv:1905.05580</a> <span> [<a href="https://arxiv.org/pdf/1905.05580">pdf</a>, <a href="https://arxiv.org/ps/1905.05580">ps</a>, <a href="https://arxiv.org/format/1905.05580">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/10.1007/s10751-019-1609-4">10.1007/s10751-019-1609-4 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Quadrupole Moments of 29Mg and 33Mg </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Yordanov%2C+D+T">Deyan Todorov Yordanov</a>, <a href="/search/nucl-ex?searchtype=author&query=Kowalska%2C+M">Magdalena Kowalska</a>, <a href="/search/nucl-ex?searchtype=author&query=Blaum%2C+K">Klaus Blaum</a>, <a href="/search/nucl-ex?searchtype=author&query=De+Rydt%2C+M">Marieke De Rydt</a>, <a href="/search/nucl-ex?searchtype=author&query=Flanagan%2C+K+T">Kieran T. Flanagan</a>, <a href="/search/nucl-ex?searchtype=author&query=Himpe%2C+P">Pieter Himpe</a>, <a href="/search/nucl-ex?searchtype=author&query=Lievens%2C+P">Peter Lievens</a>, <a href="/search/nucl-ex?searchtype=author&query=Mallion%2C+S">Stephen Mallion</a>, <a href="/search/nucl-ex?searchtype=author&query=Neugart%2C+R">Rainer Neugart</a>, <a href="/search/nucl-ex?searchtype=author&query=Neyens%2C+G">Gerda Neyens</a>, <a href="/search/nucl-ex?searchtype=author&query=Vermeulen%2C+N">Nele Vermeulen</a>, <a href="/search/nucl-ex?searchtype=author&query=Stroke%2C+H">Henry Stroke</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="1905.05580v1-abstract-short" style="display: inline;"> The quadrupole moments of 29Mg and 33Mg have been constrained by collinear laser spectroscopy at CERN-ISOLDE. The values are consistent with shell-model predictions, thus supporting the current understanding of light nuclei associated with the "island of inversion". </span> <span class="abstract-full has-text-grey-dark mathjax" id="1905.05580v1-abstract-full" style="display: none;"> The quadrupole moments of 29Mg and 33Mg have been constrained by collinear laser spectroscopy at CERN-ISOLDE. The values are consistent with shell-model predictions, thus supporting the current understanding of light nuclei associated with the "island of inversion". <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1905.05580v1-abstract-full').style.display = 'none'; document.getElementById('1905.05580v1-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 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">Journal ref:</span> Hyperfine Interactions 240, 67 (2019) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1812.02970">arXiv:1812.02970</a> <span> [<a href="https://arxiv.org/pdf/1812.02970">pdf</a>, <a href="https://arxiv.org/format/1812.02970">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/10.1007/s10751-019-1611-x">10.1007/s10751-019-1611-x <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> The MORA project </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Delahaye%2C+P">P. Delahaye</a>, <a href="/search/nucl-ex?searchtype=author&query=Li%C3%A9nard%2C+E">E. Li茅nard</a>, <a href="/search/nucl-ex?searchtype=author&query=Moore%2C+I">I. Moore</a>, <a href="/search/nucl-ex?searchtype=author&query=Benali%2C+M">M. Benali</a>, <a href="/search/nucl-ex?searchtype=author&query=Bissell%2C+M+L">M. L. Bissell</a>, <a href="/search/nucl-ex?searchtype=author&query=Canete%2C+L">L. Canete</a>, <a href="/search/nucl-ex?searchtype=author&query=Eronen%2C+T">T. Eronen</a>, <a href="/search/nucl-ex?searchtype=author&query=Falkowski%2C+A">A. Falkowski</a>, <a href="/search/nucl-ex?searchtype=author&query=Fl%C3%A9chard%2C+X">X. Fl茅chard</a>, <a href="/search/nucl-ex?searchtype=author&query=Gonzalez-Alonso%2C+M">M. Gonzalez-Alonso</a>, <a href="/search/nucl-ex?searchtype=author&query=Gins%2C+W">W. Gins</a>, <a href="/search/nucl-ex?searchtype=author&query=De+Groote%2C+R+P">R. P. De Groote</a>, <a href="/search/nucl-ex?searchtype=author&query=Jokinen%2C+A">A. Jokinen</a>, <a href="/search/nucl-ex?searchtype=author&query=Kankainen%2C+A">A. Kankainen</a>, <a href="/search/nucl-ex?searchtype=author&query=Kowalska%2C+M">M. Kowalska</a>, <a href="/search/nucl-ex?searchtype=author&query=Lecesne%2C+N">N. Lecesne</a>, <a href="/search/nucl-ex?searchtype=author&query=Leroy%2C+R">R. Leroy</a>, <a href="/search/nucl-ex?searchtype=author&query=Merrer%2C+Y">Y. Merrer</a>, <a href="/search/nucl-ex?searchtype=author&query=Neyens%2C+G">G. Neyens</a>, <a href="/search/nucl-ex?searchtype=author&query=Santos%2C+F+D+O">F. De Oliveira Santos</a>, <a href="/search/nucl-ex?searchtype=author&query=Quemener%2C+G">G. Quemener</a>, <a href="/search/nucl-ex?searchtype=author&query=De+Roubin%2C+A">A. De Roubin</a>, <a href="/search/nucl-ex?searchtype=author&query=Retailleau%2C+B+-">B. -M. Retailleau</a>, <a href="/search/nucl-ex?searchtype=author&query=Roger%2C+T">T. Roger</a>, <a href="/search/nucl-ex?searchtype=author&query=Severijns%2C+N">N. Severijns</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="1812.02970v3-abstract-short" style="display: inline;"> The MORA (Matter's Origin from the RadioActivity of trapped and oriented ions) project aims at measuring with unprecedented precision the D correlation in the nuclear beta decay of trapped and oriented ions. The D correlation offers the possibility to search for new CP-violating interactions, complementary to searches done at the LHC and with Electric Dipole Moments. Technically, MORA uses an inno… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1812.02970v3-abstract-full').style.display = 'inline'; document.getElementById('1812.02970v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1812.02970v3-abstract-full" style="display: none;"> The MORA (Matter's Origin from the RadioActivity of trapped and oriented ions) project aims at measuring with unprecedented precision the D correlation in the nuclear beta decay of trapped and oriented ions. The D correlation offers the possibility to search for new CP-violating interactions, complementary to searches done at the LHC and with Electric Dipole Moments. Technically, MORA uses an innovative in-trap orientation method which combines the high trapping efficiency of a transparent Paul trap with laser orientation techniques. The trapping, detection, and laser setups are under development, for first tests at the Accelerator laboratory, JYFL, in the coming years. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1812.02970v3-abstract-full').style.display = 'none'; document.getElementById('1812.02970v3-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 May, 2019; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 7 December, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2018. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">16 pages, 6 figures, proceedings of the TCP 2018 conference, to appear in Hyp. Int</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1710.00025">arXiv:1710.00025</a> <span> [<a href="https://arxiv.org/pdf/1710.00025">pdf</a>, <a href="https://arxiv.org/format/1710.00025">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.96.041302">10.1103/PhysRevC.96.041302 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Dipole and quadrupole moments of $^{73-78}$Cu as a test of the robustness of the $Z=28$ shell closure near $^{78}$Ni </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=de+Groote%2C+R+P">R. P. de Groote</a>, <a href="/search/nucl-ex?searchtype=author&query=Billowes%2C+J">J. Billowes</a>, <a href="/search/nucl-ex?searchtype=author&query=Binnersley%2C+C+L">C. L. Binnersley</a>, <a href="/search/nucl-ex?searchtype=author&query=Bissell%2C+M+L">M. L. Bissell</a>, <a href="/search/nucl-ex?searchtype=author&query=Cocolios%2C+T+E">T. E. Cocolios</a>, <a href="/search/nucl-ex?searchtype=author&query=Goodacre%2C+T+D">T. Day Goodacre</a>, <a href="/search/nucl-ex?searchtype=author&query=Farooq-Smith%2C+G+J">G. J. Farooq-Smith</a>, <a href="/search/nucl-ex?searchtype=author&query=Fedorov%2C+D+V">D. V. Fedorov</a>, <a href="/search/nucl-ex?searchtype=author&query=Flanagan%2C+K+T">K. T. Flanagan</a>, <a href="/search/nucl-ex?searchtype=author&query=Franchoo%2C+S">S. Franchoo</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=Koszor%C3%BAs%2C+%C3%81">脕. Koszor煤s</a>, <a href="/search/nucl-ex?searchtype=author&query=Lynch%2C+K+M">K. M. Lynch</a>, <a href="/search/nucl-ex?searchtype=author&query=Neyens%2C+G">G. Neyens</a>, <a href="/search/nucl-ex?searchtype=author&query=Nowacki%2C+F">F. Nowacki</a>, <a href="/search/nucl-ex?searchtype=author&query=Otsuka%2C+T">T. Otsuka</a>, <a href="/search/nucl-ex?searchtype=author&query=Rothe%2C+S">S. Rothe</a>, <a href="/search/nucl-ex?searchtype=author&query=Stroke%2C+H+H">H. H. Stroke</a>, <a href="/search/nucl-ex?searchtype=author&query=Tsunoda%2C+Y">Y. Tsunoda</a>, <a href="/search/nucl-ex?searchtype=author&query=Vernon%2C+A+R">A. R. Vernon</a>, <a href="/search/nucl-ex?searchtype=author&query=Wendt%2C+K+D+A">K. D. A. Wendt</a>, <a href="/search/nucl-ex?searchtype=author&query=Wilkins%2C+S+G">S. G. Wilkins</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=Yang%2C+X+F">X. F. Yang</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="1710.00025v1-abstract-short" style="display: inline;"> Nuclear spins and precise values of the magnetic dipole and electric quadrupole moments of the ground-states of neutron-rich $^{76-78}$Cu isotopes were measured using the Collinear Resonance Ionization Spectroscopy (CRIS) experiment at ISOLDE, CERN. The nuclear moments of the less exotic $^{73,75}$Cu isotopes were re-measured with similar precision, yielding values that are consistent with earlier… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1710.00025v1-abstract-full').style.display = 'inline'; document.getElementById('1710.00025v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1710.00025v1-abstract-full" style="display: none;"> Nuclear spins and precise values of the magnetic dipole and electric quadrupole moments of the ground-states of neutron-rich $^{76-78}$Cu isotopes were measured using the Collinear Resonance Ionization Spectroscopy (CRIS) experiment at ISOLDE, CERN. The nuclear moments of the less exotic $^{73,75}$Cu isotopes were re-measured with similar precision, yielding values that are consistent with earlier measurements. The moments of the odd-odd isotopes, and $^{78}_{29}$Cu ($N=49$) in particular, are used to investigate excitations of the assumed doubly-magic $^{78}$Ni core through comparisons with large-scale shell-model calculations. Despite the narrowing of the $Z=28$ shell gap between $N\sim45$ and $N=50$, the magicity of $Z=28$ and $N=50$ is restored towards $^{78}$Ni. This is due to weakened dynamical correlations, as clearly probed by the present moment measurements. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1710.00025v1-abstract-full').style.display = 'none'; document.getElementById('1710.00025v1-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, 2017; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2017. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1704.03875">arXiv:1704.03875</a> <span> [<a href="https://arxiv.org/pdf/1704.03875">pdf</a>, <a href="https://arxiv.org/format/1704.03875">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/10.1103/PhysRevA.95.032502">10.1103/PhysRevA.95.032502 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Efficient, high-resolution resonance laser ionization spectroscopy using weak transitions to long-lived excited states </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=de+Groote%2C+R+P">R. P. de Groote</a>, <a href="/search/nucl-ex?searchtype=author&query=Verlinde%2C+M">M. Verlinde</a>, <a href="/search/nucl-ex?searchtype=author&query=Sonnenschein%2C+V">V. Sonnenschein</a>, <a href="/search/nucl-ex?searchtype=author&query=Flanagan%2C+K+T">K. T. Flanagan</a>, <a href="/search/nucl-ex?searchtype=author&query=Moore%2C+I">I. Moore</a>, <a href="/search/nucl-ex?searchtype=author&query=Neyens%2C+G">G. Neyens</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="1704.03875v1-abstract-short" style="display: inline;"> Laser spectroscopic studies on minute samples of exotic radioactive nuclei require very efficient experimental techniques. In addition, high resolving powers are required to allow extraction of nu- clear structure information. Here we demonstrate that by using weak atomic transitions, resonance laser ionization spectroscopy is achieved with the required high efficiency (1-10%) and precision (linew… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1704.03875v1-abstract-full').style.display = 'inline'; document.getElementById('1704.03875v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1704.03875v1-abstract-full" style="display: none;"> Laser spectroscopic studies on minute samples of exotic radioactive nuclei require very efficient experimental techniques. In addition, high resolving powers are required to allow extraction of nu- clear structure information. Here we demonstrate that by using weak atomic transitions, resonance laser ionization spectroscopy is achieved with the required high efficiency (1-10%) and precision (linewidths of tens of MHz). We illustrate experimentally and through the use of simulations how the narrow experimental linewidths are achieved and how distorted resonance ionization spec- troscopy lineshapes can be avoided. The role of the delay of the ionization laser pulse with respect to the excitation laser pulse is crucial: the use of a delayed ionization step permits the best resolving powers and lineshapes. A high efficiency is maintained if the intermediate level has a lifetime that is at least of the order of the excitation laser pulse width. A model that describes this process re- produces well the observed features and will help to optimize the conditions for future experiments. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1704.03875v1-abstract-full').style.display = 'none'; document.getElementById('1704.03875v1-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 April, 2017; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2017. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">11 pages, 11 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. A 95, 032502 (2017) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1609.05021">arXiv:1609.05021</a> <span> [<a href="https://arxiv.org/pdf/1609.05021">pdf</a>, <a href="https://arxiv.org/format/1609.05021">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.94.054321">10.1103/PhysRevC.94.054321 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Changes in nuclear structure along the Mn isotopic chain studied via charge radii </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Heylen%2C+H">H. Heylen</a>, <a href="/search/nucl-ex?searchtype=author&query=Babcock%2C+C">C. Babcock</a>, <a href="/search/nucl-ex?searchtype=author&query=Beerwerth%2C+R">R. Beerwerth</a>, <a href="/search/nucl-ex?searchtype=author&query=Billowes%2C+J">J. Billowes</a>, <a href="/search/nucl-ex?searchtype=author&query=Bissell%2C+M+L">M. L. Bissell</a>, <a href="/search/nucl-ex?searchtype=author&query=Blaum%2C+K">K. Blaum</a>, <a href="/search/nucl-ex?searchtype=author&query=Bonnard%2C+J">J. Bonnard</a>, <a href="/search/nucl-ex?searchtype=author&query=Campbell%2C+P">P. Campbell</a>, <a href="/search/nucl-ex?searchtype=author&query=Cheal%2C+B">B. Cheal</a>, <a href="/search/nucl-ex?searchtype=author&query=Goodacre%2C+T+D">T. Day Goodacre</a>, <a href="/search/nucl-ex?searchtype=author&query=Fedorov%2C+D">D. Fedorov</a>, <a href="/search/nucl-ex?searchtype=author&query=Fritzsche%2C+S">S. Fritzsche</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=Geithner%2C+W">W. Geithner</a>, <a href="/search/nucl-ex?searchtype=author&query=Geppert%2C+C">Ch. Geppert</a>, <a href="/search/nucl-ex?searchtype=author&query=Gins%2C+W">W. Gins</a>, <a href="/search/nucl-ex?searchtype=author&query=Grob%2C+L+K">L. K. Grob</a>, <a href="/search/nucl-ex?searchtype=author&query=Kowalska%2C+M">M. Kowalska</a>, <a href="/search/nucl-ex?searchtype=author&query=Kreim%2C+K">K. Kreim</a>, <a href="/search/nucl-ex?searchtype=author&query=Lenzi%2C+S+M">S. M. Lenzi</a>, <a href="/search/nucl-ex?searchtype=author&query=Moore%2C+I+D">I. D. Moore</a>, <a href="/search/nucl-ex?searchtype=author&query=Maass%2C+B">B. Maass</a>, <a href="/search/nucl-ex?searchtype=author&query=Malbrunot-Ettenauer%2C+S">S. Malbrunot-Ettenauer</a>, <a href="/search/nucl-ex?searchtype=author&query=Marsh%2C+B">B. Marsh</a>, <a href="/search/nucl-ex?searchtype=author&query=Neugart%2C+R">R. Neugart</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="1609.05021v1-abstract-short" style="display: inline;"> The hyperfine spectra of $^{51,53-64}$Mn were measured in two experimental runs using collinear laser spectroscopy at ISOLDE, CERN. Laser spectroscopy was performed on the atomic $3d^5\ 4s^2\ ^{6}\text{S}_{5/2}\rightarrow 3d^5\ 4s4p\ ^{6}\text{P}_{3/2}$ and ionic $3d^5\ 4s\ ^{5}\text{S}_2 \rightarrow 3d^5\ 4p\ ^{5}\text{P}_3$ transitions, yielding two sets of isotope shifts. The mass and field shi… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1609.05021v1-abstract-full').style.display = 'inline'; document.getElementById('1609.05021v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1609.05021v1-abstract-full" style="display: none;"> The hyperfine spectra of $^{51,53-64}$Mn were measured in two experimental runs using collinear laser spectroscopy at ISOLDE, CERN. Laser spectroscopy was performed on the atomic $3d^5\ 4s^2\ ^{6}\text{S}_{5/2}\rightarrow 3d^5\ 4s4p\ ^{6}\text{P}_{3/2}$ and ionic $3d^5\ 4s\ ^{5}\text{S}_2 \rightarrow 3d^5\ 4p\ ^{5}\text{P}_3$ transitions, yielding two sets of isotope shifts. The mass and field shift factors for both transitions have been calculated in the multiconfiguration Dirac-Fock framework and were combined with a King plot analysis in order to obtain a consistent set of mean-square charge radii which, together with earlier work on neutron-deficient Mn, allow the study of nuclear structure changes from $N=25$ across $N=28$ up to $N=39$. A clear development of deformation is observed towards $N=40$, confirming the conclusions of the nuclear moments studies. From a Monte Carlo Shell Model study of the shape in the Mn isotopic chain, it is suggested that the observed development of deformation is not only due to an increase in static prolate deformation but also due to shape fluctuations and triaxiality. The changes in mean-square charge radii are well reproduced using the Duflo-Zuker formula except in the case of large deformation. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1609.05021v1-abstract-full').style.display = 'none'; document.getElementById('1609.05021v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 16 September, 2016; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 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">9 figures, submitted to PRC</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. C 94, 054321 (2016) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1608.04360">arXiv:1608.04360</a> <span> [<a href="https://arxiv.org/pdf/1608.04360">pdf</a>, <a href="https://arxiv.org/format/1608.04360">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.94.034312">10.1103/PhysRevC.94.034312 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> High-precision quadrupole moment reveals significant intruder component in 33Al20 ground state </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Heylen%2C+H">H. Heylen</a>, <a href="/search/nucl-ex?searchtype=author&query=De+Rydt%2C+M">M. De Rydt</a>, <a href="/search/nucl-ex?searchtype=author&query=Neyens%2C+G">G. Neyens</a>, <a href="/search/nucl-ex?searchtype=author&query=Bissell%2C+M+L">M. L. Bissell</a>, <a href="/search/nucl-ex?searchtype=author&query=Caceres%2C+L">L. Caceres</a>, <a href="/search/nucl-ex?searchtype=author&query=Chevrier%2C+R">R. Chevrier</a>, <a href="/search/nucl-ex?searchtype=author&query=Daugas%2C+J+M">J. M. Daugas</a>, <a href="/search/nucl-ex?searchtype=author&query=Ichikawa%2C+Y">Y. Ichikawa</a>, <a href="/search/nucl-ex?searchtype=author&query=Ishibashi%2C+Y">Y. Ishibashi</a>, <a href="/search/nucl-ex?searchtype=author&query=Kamalou%2C+O">O. Kamalou</a>, <a href="/search/nucl-ex?searchtype=author&query=Mertzimekis%2C+T+J">T. J. Mertzimekis</a>, <a href="/search/nucl-ex?searchtype=author&query=Morel%2C+P">P. Morel</a>, <a href="/search/nucl-ex?searchtype=author&query=Papuga%2C+J">J. Papuga</a>, <a href="/search/nucl-ex?searchtype=author&query=Poves%2C+A">A. Poves</a>, <a href="/search/nucl-ex?searchtype=author&query=Rajabali%2C+M+M">M. M. Rajabali</a>, <a href="/search/nucl-ex?searchtype=author&query=St%7Fodel%2C+C">C. Stodel</a>, <a href="/search/nucl-ex?searchtype=author&query=Thomas%2C+J+C">J. C. Thomas</a>, <a href="/search/nucl-ex?searchtype=author&query=Ueno%2C+H">H. Ueno</a>, <a href="/search/nucl-ex?searchtype=author&query=Utsuno%2C+Y">Y. Utsuno</a>, <a href="/search/nucl-ex?searchtype=author&query=Yoshida%2C+N">N. Yoshida</a>, <a href="/search/nucl-ex?searchtype=author&query=Yoshimi%2C+A">A. Yoshimi</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="1608.04360v1-abstract-short" style="display: inline;"> The electric quadrupole moment of the 33Al20 ground state, located at the border of the island of inversion, was obtained using continuous-beam beta-detected nuclear quadrupole resonance (beta-NQR). From the measured quadrupole coupling constant Q = 2.31(4) MHz in an alpha-Al2O3 crystal, a precise value for the electric quadrupole moment is extracted: Qs= 141(3) mb. A comparison with large-scale s… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1608.04360v1-abstract-full').style.display = 'inline'; document.getElementById('1608.04360v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1608.04360v1-abstract-full" style="display: none;"> The electric quadrupole moment of the 33Al20 ground state, located at the border of the island of inversion, was obtained using continuous-beam beta-detected nuclear quadrupole resonance (beta-NQR). From the measured quadrupole coupling constant Q = 2.31(4) MHz in an alpha-Al2O3 crystal, a precise value for the electric quadrupole moment is extracted: Qs= 141(3) mb. A comparison with large-scale shell model calculations shows that 33Al has at least 50% intruder configurations in the ground state wave function, favoring the excitation of two neutrons across the N = 20 shell gap. 33Al therefore clearly marks the gradual transition north of the deformed Na and Mg nuclei towards the normal Z>14 isotopes. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1608.04360v1-abstract-full').style.display = 'none'; document.getElementById('1608.04360v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 15 August, 2016; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 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">6 pages, 4 figures. Accepted for publication in Physical Review C</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1604.03316">arXiv:1604.03316</a> <span> [<a href="https://arxiv.org/pdf/1604.03316">pdf</a>, <a href="https://arxiv.org/ps/1604.03316">ps</a>, <a href="https://arxiv.org/format/1604.03316">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.116.182502">10.1103/PhysRevLett.116.182502 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Isomer shift and magnetic moment of the long-lived 1/2$^{+}$ isomer in $^{79}_{30}$Zn$_{49}$: signature of shape coexistence near $^{78}$Ni </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Yang%2C+X+F">X. F. Yang</a>, <a href="/search/nucl-ex?searchtype=author&query=Wraith%2C+C">C. Wraith</a>, <a href="/search/nucl-ex?searchtype=author&query=Xie%2C+L">L. Xie</a>, <a href="/search/nucl-ex?searchtype=author&query=Babcock%2C+C">C. Babcock</a>, <a href="/search/nucl-ex?searchtype=author&query=Billowes%2C+J">J. Billowes</a>, <a href="/search/nucl-ex?searchtype=author&query=Bissell%2C+M+L">M. L. Bissell</a>, <a href="/search/nucl-ex?searchtype=author&query=Blaum%2C+K">K. Blaum</a>, <a href="/search/nucl-ex?searchtype=author&query=Cheal%2C+B">B. Cheal</a>, <a href="/search/nucl-ex?searchtype=author&query=Flanagan%2C+K+T">K. T. Flanagan</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=Gins%2C+W">W. Gins</a>, <a href="/search/nucl-ex?searchtype=author&query=Gorges%2C+C">C. Gorges</a>, <a href="/search/nucl-ex?searchtype=author&query=Grob%2C+L+K">L. K. Grob</a>, <a href="/search/nucl-ex?searchtype=author&query=Heylen%2C+H">H. Heylen</a>, <a href="/search/nucl-ex?searchtype=author&query=Kaufmann%2C+S">S. Kaufmann</a>, <a href="/search/nucl-ex?searchtype=author&query=Kowalska%2C+M">M. Kowalska</a>, <a href="/search/nucl-ex?searchtype=author&query=Kraemer%2C+J">J. Kraemer</a>, <a href="/search/nucl-ex?searchtype=author&query=Malbrunot-Ettenauer%2C+S">S. Malbrunot-Ettenauer</a>, <a href="/search/nucl-ex?searchtype=author&query=Neugart%2C+R">R. Neugart</a>, <a href="/search/nucl-ex?searchtype=author&query=Neyens%2C+G">G. Neyens</a>, <a href="/search/nucl-ex?searchtype=author&query=N%C3%B6rtersh%C3%A4user%2C+W">W. N枚rtersh盲user</a>, <a href="/search/nucl-ex?searchtype=author&query=Papuga%2C+J">J. Papuga</a>, <a href="/search/nucl-ex?searchtype=author&query=S%C3%A1nchez%2C+R">R. S谩nchez</a>, <a href="/search/nucl-ex?searchtype=author&query=Yordanov%2C+D+T">D. T. Yordanov</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="1604.03316v1-abstract-short" style="display: inline;"> Collinear laser spectroscopy has been performed on the $^{79}_{30}$Zn$_{49}$ isotope at ISOLDE-CERN. The existence of a long-lived isomer with a few hundred milliseconds half-life was confirmed, and the nuclear spins and moments of the ground and isomeric states in $^{79}$Zn as well as the isomer shift were measured. From the observed hyperfine structures, spins $I = 9/2$ and $I = 1/2$ are firmly… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1604.03316v1-abstract-full').style.display = 'inline'; document.getElementById('1604.03316v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1604.03316v1-abstract-full" style="display: none;"> Collinear laser spectroscopy has been performed on the $^{79}_{30}$Zn$_{49}$ isotope at ISOLDE-CERN. The existence of a long-lived isomer with a few hundred milliseconds half-life was confirmed, and the nuclear spins and moments of the ground and isomeric states in $^{79}$Zn as well as the isomer shift were measured. From the observed hyperfine structures, spins $I = 9/2$ and $I = 1/2$ are firmly assigned to the ground and isomeric states. The magnetic moment $渭$ ($^{79}$Zn) = $-$1.1866(10) $渭_{\rm{N}}$, confirms the spin-parity $9/2^{+}$ with a $谓g_{9/2}^{-1}$ shell-model configuration, in excellent agreement with the prediction from large scale shell-model theories. The magnetic moment $渭$ ($^{79m}$Zn) = $-$1.0180(12) $渭_{\rm{N}}$ supports a positive parity for the isomer, with a wave function dominated by a 2h-1p neutron excitation across the $N = 50$ shell gap. The large isomer shift reveals an increase of the intruder isomer mean square charge radius with respect to that of the ground state: $未\langle r^{2}_{c}\rangle^{79,79m}$ = +0.204(6) fm$^{2}$, providing first evidence of shape coexistence. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1604.03316v1-abstract-full').style.display = 'none'; document.getElementById('1604.03316v1-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 April, 2016; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2016. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">5 pages, 4 figures, 1 table, Accepeted by Phys. Rev. Lett. (2016)</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1602.07906">arXiv:1602.07906</a> <span> [<a href="https://arxiv.org/pdf/1602.07906">pdf</a>, <a href="https://arxiv.org/format/1602.07906">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/10.1038/nphys3645">10.1038/nphys3645 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Unexpectedly large charge radii of neutron-rich calcium isotopes </p> <p class="authors"> <span class="search-hit">Authors:</span> <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=Bissell%2C+M+L">M. L. Bissell</a>, <a href="/search/nucl-ex?searchtype=author&query=Blaum%2C+K">K. Blaum</a>, <a href="/search/nucl-ex?searchtype=author&query=Ekstr%7Fom%2C+A">A. Ekstrom</a>, <a href="/search/nucl-ex?searchtype=author&query=Fr%7Fommgen%2C+N">N. Frommgen</a>, <a href="/search/nucl-ex?searchtype=author&query=Hagen%2C+G">G. Hagen</a>, <a href="/search/nucl-ex?searchtype=author&query=Hammen%2C+M">M. Hammen</a>, <a href="/search/nucl-ex?searchtype=author&query=Hebeler%2C+K">K. Hebeler</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=Jansen%2C+G+R">G. R. Jansen</a>, <a href="/search/nucl-ex?searchtype=author&query=Kowalska%2C+M">M. Kowalska</a>, <a href="/search/nucl-ex?searchtype=author&query=Kreim%2C+K">K. Kreim</a>, <a href="/search/nucl-ex?searchtype=author&query=Nazarewicz%2C+W">W. Nazarewicz</a>, <a href="/search/nucl-ex?searchtype=author&query=Neugart%2C+R">R. Neugart</a>, <a href="/search/nucl-ex?searchtype=author&query=Neyens%2C+G">G. Neyens</a>, <a href="/search/nucl-ex?searchtype=author&query=N%7Fortersh%7Fauser%2C+W">W. Nortershauser</a>, <a href="/search/nucl-ex?searchtype=author&query=Papenbrock%2C+T">T. Papenbrock</a>, <a href="/search/nucl-ex?searchtype=author&query=Papuga%2C+J">J. Papuga</a>, <a href="/search/nucl-ex?searchtype=author&query=Schwenk%2C+A">A. Schwenk</a>, <a href="/search/nucl-ex?searchtype=author&query=Simonis%2C+J">J. Simonis</a>, <a href="/search/nucl-ex?searchtype=author&query=Wendt%2C+K+A">K. A. Wendt</a>, <a href="/search/nucl-ex?searchtype=author&query=Yordanov%2C+D+T">D. T. Yordanov</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="1602.07906v1-abstract-short" style="display: inline;"> Despite being a complex many-body system, the atomic nucleus exhibits simple structures for certain "magic" numbers of protons and neutrons. The calcium chain in particular is both unique and puzzling: evidence of doubly-magic features are known in 40,48Ca, and recently suggested in two radioactive isotopes, 52,54Ca. Although many properties of experimentally known Ca isotopes have been successful… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1602.07906v1-abstract-full').style.display = 'inline'; document.getElementById('1602.07906v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1602.07906v1-abstract-full" style="display: none;"> Despite being a complex many-body system, the atomic nucleus exhibits simple structures for certain "magic" numbers of protons and neutrons. The calcium chain in particular is both unique and puzzling: evidence of doubly-magic features are known in 40,48Ca, and recently suggested in two radioactive isotopes, 52,54Ca. Although many properties of experimentally known Ca isotopes have been successfully described by nuclear theory, it is still a challenge to predict their charge radii evolution. Here we present the first measurements of the charge radii of 49,51,52Ca, obtained from laser spectroscopy experiments at ISOLDE, CERN. The experimental results are complemented by state-of-the-art theoretical calculations. The large and unexpected increase of the size of the neutron-rich calcium isotopes beyond N = 28 challenges the doubly-magic nature of 52Ca and opens new intriguing questions on the evolution of nuclear sizes away from stability, which are of importance for our understanding of neutron-rich atomic nuclei. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1602.07906v1-abstract-full').style.display = 'none'; document.getElementById('1602.07906v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 25 February, 2016; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2016. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Submitted version. See original publication (doi:10.1038/nphys3645) for final version</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Nature Physics 12, 594-598 (2016) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1508.06207">arXiv:1508.06207</a> <span> [<a href="https://arxiv.org/pdf/1508.06207">pdf</a>, <a href="https://arxiv.org/format/1508.06207">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevC.92.044311">10.1103/PhysRevC.92.044311 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Spins and magnetic moments of 58;60;62;64Mn ground states and isomers </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Heylen%2C+H">H. Heylen</a>, <a href="/search/nucl-ex?searchtype=author&query=Babcock%2C+C">C. Babcock</a>, <a href="/search/nucl-ex?searchtype=author&query=Billowes%2C+J">J. Billowes</a>, <a href="/search/nucl-ex?searchtype=author&query=Bissell%2C+M+L">M. L. Bissell</a>, <a href="/search/nucl-ex?searchtype=author&query=Blaum%2C+K">K. Blaum</a>, <a href="/search/nucl-ex?searchtype=author&query=Campbell%2C+P">P. Campbell</a>, <a href="/search/nucl-ex?searchtype=author&query=Cheal%2C+B">B. Cheal</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=Geppert%2C+C">Ch. Geppert</a>, <a href="/search/nucl-ex?searchtype=author&query=Gins%2C+W">W. Gins</a>, <a href="/search/nucl-ex?searchtype=author&query=Kowalska%2C+M">M. Kowalska</a>, <a href="/search/nucl-ex?searchtype=author&query=Kreim%2C+K">K. Kreim</a>, <a href="/search/nucl-ex?searchtype=author&query=Lenzi%2C+S+M">S. M. Lenzi</a>, <a href="/search/nucl-ex?searchtype=author&query=Moore%2C+I+D">I. D. Moore</a>, <a href="/search/nucl-ex?searchtype=author&query=Neugart%2C+R">R. Neugart</a>, <a href="/search/nucl-ex?searchtype=author&query=Neyens%2C+G">G. Neyens</a>, <a href="/search/nucl-ex?searchtype=author&query=N%C3%B6rtersh%C3%A4user%2C+W">W. N枚rtersh盲user</a>, <a href="/search/nucl-ex?searchtype=author&query=Papuga%2C+J">J. Papuga</a>, <a href="/search/nucl-ex?searchtype=author&query=Yordanov%2C+D+T">D. T. Yordanov</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="1508.06207v1-abstract-short" style="display: inline;"> The odd-odd 54;56;58;60;62;64Mn isotopes (Z = 25) were studied using bunched-beam collinear laser spectroscopy at ISOLDE, CERN. From the measured hyperfine spectra the spins and magnetic moments of Mn isotopes up to N = 39 were extracted. The previous tentative ground state spin assignments of 58;60;62;64Mn are now firmly determined to be I = 1 along with an I = 4 assignment for the isomeric state… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1508.06207v1-abstract-full').style.display = 'inline'; document.getElementById('1508.06207v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1508.06207v1-abstract-full" style="display: none;"> The odd-odd 54;56;58;60;62;64Mn isotopes (Z = 25) were studied using bunched-beam collinear laser spectroscopy at ISOLDE, CERN. From the measured hyperfine spectra the spins and magnetic moments of Mn isotopes up to N = 39 were extracted. The previous tentative ground state spin assignments of 58;60;62;64Mn are now firmly determined to be I = 1 along with an I = 4 assignment for the isomeric states in 58;60;62Mn. The I = 1 magnetic moments show a decreasing trend with increasing neutron number while the I = 4 moments remain quite constant between N = 33 and N = 37. The results are compared to large-scale shell-model calculations using the GXPF1A and LNPS effective interactions. The excellent agreement of the ground state moments with the predictions from the LNPS calculations illustrates the need for an increasing amount of proton excitations across Z = 28 and neutron excitations across N = 40 in the ground state wave functions from N = 37 onwards. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1508.06207v1-abstract-full').style.display = 'none'; document.getElementById('1508.06207v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 25 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">Journal ref:</span> Phys. Rev. C 92, 044311 (2015) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1507.03846">arXiv:1507.03846</a> <span> [<a href="https://arxiv.org/pdf/1507.03846">pdf</a>, <a href="https://arxiv.org/ps/1507.03846">ps</a>, <a href="https://arxiv.org/format/1507.03846">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="Atomic Physics">physics.atom-ph</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/epjd/e2015-60219-0">10.1140/epjd/e2015-60219-0 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Collinear laser spectroscopy of atomic cadmium </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Fr%C3%B6mmgen%2C+N">Nadja Fr枚mmgen</a>, <a href="/search/nucl-ex?searchtype=author&query=Balabanski%2C+D+L">Dimiter L. Balabanski</a>, <a href="/search/nucl-ex?searchtype=author&query=Bissell%2C+M+L">Mark L. Bissell</a>, <a href="/search/nucl-ex?searchtype=author&query=Biero%C5%84%2C+J">Jacek Biero艅</a>, <a href="/search/nucl-ex?searchtype=author&query=Blaum%2C+K">Klaus Blaum</a>, <a href="/search/nucl-ex?searchtype=author&query=Cheal%2C+B">Bradley Cheal</a>, <a href="/search/nucl-ex?searchtype=author&query=Flanagan%2C+K">Kieran Flanagan</a>, <a href="/search/nucl-ex?searchtype=author&query=Fritzsche%2C+S">Stephan Fritzsche</a>, <a href="/search/nucl-ex?searchtype=author&query=Geppert%2C+C">Christopher Geppert</a>, <a href="/search/nucl-ex?searchtype=author&query=Hammen%2C+M">Michael Hammen</a>, <a href="/search/nucl-ex?searchtype=author&query=Kowalska%2C+M">Magdalena Kowalska</a>, <a href="/search/nucl-ex?searchtype=author&query=Kreim%2C+K">Kim Kreim</a>, <a href="/search/nucl-ex?searchtype=author&query=Krieger%2C+A">Andreas Krieger</a>, <a href="/search/nucl-ex?searchtype=author&query=Neugart%2C+R">Rainer Neugart</a>, <a href="/search/nucl-ex?searchtype=author&query=Neyens%2C+G">Gerda Neyens</a>, <a href="/search/nucl-ex?searchtype=author&query=Rajabali%2C+M+M">Mustafa M. Rajabali</a>, <a href="/search/nucl-ex?searchtype=author&query=N%C3%B6rtersh%C3%A4user%2C+W">Wilfried N枚rtersh盲user</a>, <a href="/search/nucl-ex?searchtype=author&query=Papuga%2C+J">Jasna Papuga</a>, <a href="/search/nucl-ex?searchtype=author&query=Yordanov%2C+D+T">Deyan T. Yordanov</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1507.03846v1-abstract-short" style="display: inline;"> Hyperfine structure $A$ and $B$ factors of the atomic $5s\,5p\,\; ^3\rm{P}_2 \rightarrow 5s\,6s\,\; ^3\rm{S}_1$ transition are determined from collinear laser spectroscopy data of $^{107-123}$Cd and $^{111m-123m}$Cd. Nuclear magnetic moments and electric quadrupole moments are extracted using reference dipole moments and calculated electric field gradients, respectively. The hyperfine structure an… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1507.03846v1-abstract-full').style.display = 'inline'; document.getElementById('1507.03846v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1507.03846v1-abstract-full" style="display: none;"> Hyperfine structure $A$ and $B$ factors of the atomic $5s\,5p\,\; ^3\rm{P}_2 \rightarrow 5s\,6s\,\; ^3\rm{S}_1$ transition are determined from collinear laser spectroscopy data of $^{107-123}$Cd and $^{111m-123m}$Cd. Nuclear magnetic moments and electric quadrupole moments are extracted using reference dipole moments and calculated electric field gradients, respectively. The hyperfine structure anomaly for isotopes with $s_{1/2}$ and $d_{5/2}$ nuclear ground states and isomeric $h_{11/2}$ states is evaluated and a linear relationship is observed for all nuclear states except $s_{1/2}$. This corresponds to the Moskowitz-Lombardi rule that was established in the mercury region of the nuclear chart but in the case of cadmium the slope is distinctively smaller than for mercury. In total four atomic and ionic levels were analyzed and all of them exhibit a similar behaviour. The electric field gradient for the atomic $5s\,5p\,\; ^3\mathrm{P}_2$ level is derived from multi-configuration Dirac-Hartree-Fock calculations in order to evaluate the spectroscopic nuclear quadrupole moments. The results are consistent with those obtained in an ionic transition and based on a similar calculation. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1507.03846v1-abstract-full').style.display = 'none'; document.getElementById('1507.03846v1-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 July, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2015. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">12 pages, 5 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Eur. Phys. J. D 69, 164 (2015) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1504.04474">arXiv:1504.04474</a> <span> [<a href="https://arxiv.org/pdf/1504.04474">pdf</a>, <a href="https://arxiv.org/ps/1504.04474">ps</a>, <a href="https://arxiv.org/format/1504.04474">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Theory">nucl-th</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevC.91.041304">10.1103/PhysRevC.91.041304 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Ground-State Electromagnetic Moments of Calcium Isotopes </p> <p class="authors"> <span class="search-hit">Authors:</span> <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=Bissell%2C+M+L">M. L. Bissell</a>, <a href="/search/nucl-ex?searchtype=author&query=Blaum%2C+K">K. Blaum</a>, <a href="/search/nucl-ex?searchtype=author&query=Frommgen%2C+N">N. Frommgen</a>, <a href="/search/nucl-ex?searchtype=author&query=Hammen%2C+M">M. Hammen</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=Kowalska%2C+M">M. Kowalska</a>, <a href="/search/nucl-ex?searchtype=author&query=Kreim%2C+K">K. Kreim</a>, <a href="/search/nucl-ex?searchtype=author&query=Menendez%2C+J">J. Menendez</a>, <a href="/search/nucl-ex?searchtype=author&query=Neugart%2C+R">R. Neugart</a>, <a href="/search/nucl-ex?searchtype=author&query=Neyens%2C+G">G. Neyens</a>, <a href="/search/nucl-ex?searchtype=author&query=Nortershauser%2C+W">W. Nortershauser</a>, <a href="/search/nucl-ex?searchtype=author&query=Nowacki%2C+F">F. Nowacki</a>, <a href="/search/nucl-ex?searchtype=author&query=Papuga%2C+J">J. Papuga</a>, <a href="/search/nucl-ex?searchtype=author&query=Poves%2C+A">A. Poves</a>, <a href="/search/nucl-ex?searchtype=author&query=Schwenk%2C+A">A. Schwenk</a>, <a href="/search/nucl-ex?searchtype=author&query=Simonis%2C+J">J. Simonis</a>, <a href="/search/nucl-ex?searchtype=author&query=Yordanov%2C+D+T">D. T. Yordanov</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1504.04474v1-abstract-short" style="display: inline;"> High-resolution bunched-beam collinear laser spectroscopy was used to measure the optical hyperfine spectra of the $^{43-51}$Ca isotopes. The ground state magnetic moments of $^{49,51}$Ca and quadrupole moments of $^{47,49,51}$Ca were measured for the first time, and the $^{51}$Ca ground state spin $I=3/2$ was determined in a model-independent way. Our results provide a critical test of modern nuc… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1504.04474v1-abstract-full').style.display = 'inline'; document.getElementById('1504.04474v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1504.04474v1-abstract-full" style="display: none;"> High-resolution bunched-beam collinear laser spectroscopy was used to measure the optical hyperfine spectra of the $^{43-51}$Ca isotopes. The ground state magnetic moments of $^{49,51}$Ca and quadrupole moments of $^{47,49,51}$Ca were measured for the first time, and the $^{51}$Ca ground state spin $I=3/2$ was determined in a model-independent way. Our results provide a critical test of modern nuclear theories based on shell-model calculations using phenomenological as well as microscopic interactions. The results for the neutron-rich isotopes are in excellent agreement with predictions using interactions derived from chiral effective field theory including three-nucleon forces, while lighter isotopes illustrate the presence of particle-hole excitations of the $^{40}$Ca core in their ground state. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1504.04474v1-abstract-full').style.display = 'none'; document.getElementById('1504.04474v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 17 April, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2015. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Accepted 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> Physical Review C 91 041304 (2015) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1410.0895">arXiv:1410.0895</a> <span> [<a href="https://arxiv.org/pdf/1410.0895">pdf</a>, <a href="https://arxiv.org/ps/1410.0895">ps</a>, <a href="https://arxiv.org/format/1410.0895">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.90.034321">10.1103/PhysRevC.90.034321 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Shell structure of potassium isotopes deduced from their magnetic moments </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Papuga%2C+J">J. Papuga</a>, <a href="/search/nucl-ex?searchtype=author&query=Bissell%2C+M+L">M. L. Bissell</a>, <a href="/search/nucl-ex?searchtype=author&query=Kreim%2C+K">K. Kreim</a>, <a href="/search/nucl-ex?searchtype=author&query=Barbieri%2C+C">C. Barbieri</a>, <a href="/search/nucl-ex?searchtype=author&query=Blaum%2C+K">K. Blaum</a>, <a href="/search/nucl-ex?searchtype=author&query=De+Rydt%2C+M">M. De Rydt</a>, <a href="/search/nucl-ex?searchtype=author&query=Duguet%2C+T">T. Duguet</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=Heylen%2C+H">H. Heylen</a>, <a href="/search/nucl-ex?searchtype=author&query=Kowalska%2C+M">M. Kowalska</a>, <a href="/search/nucl-ex?searchtype=author&query=Neugart%2C+R">R. Neugart</a>, <a href="/search/nucl-ex?searchtype=author&query=Neyens%2C+G">G. Neyens</a>, <a href="/search/nucl-ex?searchtype=author&query=Nortershauser%2C+W">W. Nortershauser</a>, <a href="/search/nucl-ex?searchtype=author&query=Rajabali%2C+M+M">M. M. Rajabali</a>, <a href="/search/nucl-ex?searchtype=author&query=Sanchez%2C+R">R. Sanchez</a>, <a href="/search/nucl-ex?searchtype=author&query=Smirnova%2C+N">N. Smirnova</a>, <a href="/search/nucl-ex?searchtype=author&query=Soma%2C+V">V. Soma</a>, <a href="/search/nucl-ex?searchtype=author&query=Yordanov%2C+D+T">D. T. Yordanov</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="1410.0895v1-abstract-short" style="display: inline;"> \item[Background] Ground-state spins and magnetic moments are sensitive to the nuclear wave function, thus they are powerful probes to study the nuclear structure of isotopes far from stability. \item[Purpose] Extend our knowledge about the evolution of the $1/2^+$ and $3/2^+$ states for K isotopes beyond the $N = 28$ shell gap. \item[Method] High-resolution collinear laser spectroscopy on bunched… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1410.0895v1-abstract-full').style.display = 'inline'; document.getElementById('1410.0895v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1410.0895v1-abstract-full" style="display: none;"> \item[Background] Ground-state spins and magnetic moments are sensitive to the nuclear wave function, thus they are powerful probes to study the nuclear structure of isotopes far from stability. \item[Purpose] Extend our knowledge about the evolution of the $1/2^+$ and $3/2^+$ states for K isotopes beyond the $N = 28$ shell gap. \item[Method] High-resolution collinear laser spectroscopy on bunched atomic beams. \item[Results] From measured hyperfine structure spectra of K isotopes, nuclear spins and magnetic moments of the ground states were obtained for isotopes from $N = 19$ up to $N = 32$. In order to draw conclusions about the composition of the wave functions and the occupation of the levels, the experimental data were compared to shell-model calculations using SDPF-NR and SDPF-U effective interactions. In addition, a detailed discussion about the evolution of the gap between proton $1d_{3/2}$ and $2s_{1/2}$ in the shell model and {\it{ab initio}} framework is also presented. \item[Conclusions] The dominant component of the wave function for the odd-$A$ isotopes up to $^{45}$K is a $蟺1d_{3/2}^{-1}$ hole. For $^{47,49}$K, the main component originates from a $蟺2s_{1/2}^{-1}$ hole configuration and it inverts back to the $蟺1d_{3/2}^{-1}$ in $^{51}$K. For all even-$A$ isotopes, the dominant configuration arises from a $蟺1d_{3/2}^{-1}$ hole coupled to a neutron in the $谓1f_{7/2}$ or $谓2p_{3/2}$ orbitals. Only for $^{48}$K, a significant amount of mixing with $蟺2s_{1/2}^{-1} \otimes 谓(pf)$ is observed leading to a $I^蟺=1^{-}$ ground state. For $^{50}$K, the ground-state spin-parity is $0^-$ with leading configuration $蟺1d_{3/2}^{-1} \otimes 谓2p_{3/2}^{-1}$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1410.0895v1-abstract-full').style.display = 'none'; document.getElementById('1410.0895v1-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 October, 2014; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2014. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">12 pages, 10 figures, 7 tables</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1407.0563">arXiv:1407.0563</a> <span> [<a href="https://arxiv.org/pdf/1407.0563">pdf</a>, <a href="https://arxiv.org/ps/1407.0563">ps</a>, <a href="https://arxiv.org/format/1407.0563">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevC.90.014317">10.1103/PhysRevC.90.014317 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Laser spectroscopy of francium isotopes at the borders of the region of reflection asymmetry </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Budin%C4%8Devi%C4%87%2C+I">I. Budin膷evi膰</a>, <a href="/search/nucl-ex?searchtype=author&query=Billowes%2C+J">J. Billowes</a>, <a href="/search/nucl-ex?searchtype=author&query=Bissell%2C+M+L">M. L. Bissell</a>, <a href="/search/nucl-ex?searchtype=author&query=Cocolios%2C+T+E">T. E. Cocolios</a>, <a href="/search/nucl-ex?searchtype=author&query=de+Groote%2C+R+P">R. P. de Groote</a>, <a href="/search/nucl-ex?searchtype=author&query=De+Schepper%2C+S">S. De Schepper</a>, <a href="/search/nucl-ex?searchtype=author&query=Fedosseev%2C+V+N">V. N. Fedosseev</a>, <a href="/search/nucl-ex?searchtype=author&query=Flanagan%2C+K+T">K. T. Flanagan</a>, <a href="/search/nucl-ex?searchtype=author&query=Franchoo%2C+S">S. Franchoo</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=Heylen%2C+H">H. Heylen</a>, <a href="/search/nucl-ex?searchtype=author&query=Lynch%2C+K+M">K. M. Lynch</a>, <a href="/search/nucl-ex?searchtype=author&query=Marsh%2C+B+A">B. A. Marsh</a>, <a href="/search/nucl-ex?searchtype=author&query=Neyens%2C+G">G. Neyens</a>, <a href="/search/nucl-ex?searchtype=author&query=Procter%2C+T+J">T. J. Procter</a>, <a href="/search/nucl-ex?searchtype=author&query=Rossel%2C+R+E">R. E. Rossel</a>, <a href="/search/nucl-ex?searchtype=author&query=Rothe%2C+S">S. Rothe</a>, <a href="/search/nucl-ex?searchtype=author&query=Strashnov%2C+I">I. Strashnov</a>, <a href="/search/nucl-ex?searchtype=author&query=Stroke%2C+H+H">H. H. Stroke</a>, <a href="/search/nucl-ex?searchtype=author&query=Wendt%2C+K+D+A">K. D. A. Wendt</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="1407.0563v1-abstract-short" style="display: inline;"> The magnetic dipole moments and changes in mean-square charge radii of the neutron-rich $^{218m,219,229,231}\text{Fr}$ isotopes were measured with the newly-installed Collinear Resonance Ionization Spectroscopy (CRIS) beam line at ISOLDE, CERN, probing the $7s~^{2}S_{1/2}$ to $8p~^{2}P_{3/2}$ atomic transition. The $未\langle r^{2}\rangle^{A,221}$ values for $^{218m,219}\text{Fr}$ and… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1407.0563v1-abstract-full').style.display = 'inline'; document.getElementById('1407.0563v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1407.0563v1-abstract-full" style="display: none;"> The magnetic dipole moments and changes in mean-square charge radii of the neutron-rich $^{218m,219,229,231}\text{Fr}$ isotopes were measured with the newly-installed Collinear Resonance Ionization Spectroscopy (CRIS) beam line at ISOLDE, CERN, probing the $7s~^{2}S_{1/2}$ to $8p~^{2}P_{3/2}$ atomic transition. The $未\langle r^{2}\rangle^{A,221}$ values for $^{218m,219}\text{Fr}$ and $^{229,231}\text{Fr}$ follow the observed increasing slope of the charge radii beyond $N~=~126$. The charge radii odd-even staggering in this neutron-rich region is discussed, showing that $^{220}\text{Fr}$ has a weakly inverted odd-even staggering while $^{228}\text{Fr}$ has normal staggering. This suggests that both isotopes reside at the borders of a region of inverted staggering, which has been associated with reflection-asymmetric shapes. The $g(^{219}\text{Fr}) = +0.69(1)$ value supports a $蟺1h_{9/2}$ shell model configuration for the ground state. The $g(^{229,231}\text{Fr})$ values support the tentative $I^蟺(^{229,231}\text{Fr}) = (1/2^{+})$ spin, and point to a $蟺s_{1/2}^{-1}$ intruder ground state configuration. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1407.0563v1-abstract-full').style.display = 'none'; document.getElementById('1407.0563v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 2 July, 2014; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2014. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Accepted for publication with Physical Review C</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1402.4266">arXiv:1402.4266</a> <span> [<a href="https://arxiv.org/pdf/1402.4266">pdf</a>, <a href="https://arxiv.org/format/1402.4266">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/PhysRevX.4.011055">10.1103/PhysRevX.4.011055 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Decay-assisted collinear resonance ionization spectroscopy: Application to neutron-deficient francium </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Lynch%2C+K+M">K. M. Lynch</a>, <a href="/search/nucl-ex?searchtype=author&query=Billowes%2C+J">J. Billowes</a>, <a href="/search/nucl-ex?searchtype=author&query=Bissell%2C+M+L">M. L. Bissell</a>, <a href="/search/nucl-ex?searchtype=author&query=Budin%C4%8Devi%C4%87%2C+I">I. Budin膷evi膰</a>, <a href="/search/nucl-ex?searchtype=author&query=Cocolios%2C+T+E">T. E. Cocolios</a>, <a href="/search/nucl-ex?searchtype=author&query=De+Groote%2C+R+P">R. P. De Groote</a>, <a href="/search/nucl-ex?searchtype=author&query=De+Schepper%2C+S">S. De Schepper</a>, <a href="/search/nucl-ex?searchtype=author&query=Fedosseev%2C+V+N">V. N. Fedosseev</a>, <a href="/search/nucl-ex?searchtype=author&query=Flanagan%2C+K+T">K. T. Flanagan</a>, <a href="/search/nucl-ex?searchtype=author&query=Franchoo%2C+S">S. Franchoo</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=Heylen%2C+H">H. Heylen</a>, <a href="/search/nucl-ex?searchtype=author&query=Marsh%2C+B+A">B. A. Marsh</a>, <a href="/search/nucl-ex?searchtype=author&query=Neyens%2C+G">G. Neyens</a>, <a href="/search/nucl-ex?searchtype=author&query=Procter%2C+T+J">T. J. Procter</a>, <a href="/search/nucl-ex?searchtype=author&query=Rossel%2C+R+E">R. E. Rossel</a>, <a href="/search/nucl-ex?searchtype=author&query=Rothe%2C+S">S. Rothe</a>, <a href="/search/nucl-ex?searchtype=author&query=Strashnov%2C+I">I. Strashnov</a>, <a href="/search/nucl-ex?searchtype=author&query=Stroke%2C+H+H">H. H. Stroke</a>, <a href="/search/nucl-ex?searchtype=author&query=Wendt%2C+K+D+A">K. D. A. Wendt</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="1402.4266v1-abstract-short" style="display: inline;"> This paper reports on the hyperfine-structure and radioactive-decay studies of the neutron-deficient francium isotopes $^{202-206}$Fr performed with the Collinear Resonance Ionization Spectroscopy (CRIS) experiment at the ISOLDE facility, CERN. The high resolution innate to collinear laser spectroscopy is combined with the high efficiency of ion detection to provide a highly-sensitive technique to… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1402.4266v1-abstract-full').style.display = 'inline'; document.getElementById('1402.4266v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1402.4266v1-abstract-full" style="display: none;"> This paper reports on the hyperfine-structure and radioactive-decay studies of the neutron-deficient francium isotopes $^{202-206}$Fr performed with the Collinear Resonance Ionization Spectroscopy (CRIS) experiment at the ISOLDE facility, CERN. The high resolution innate to collinear laser spectroscopy is combined with the high efficiency of ion detection to provide a highly-sensitive technique to probe the hyperfine structure of exotic isotopes. The technique of decay-assisted laser spectroscopy is presented, whereby the isomeric ion beam is deflected to a decay spectroscopy station for alpha-decay tagging of the hyperfine components. Here, we present the first hyperfine-structure measurements of the neutron-deficient francium isotopes $^{202-206}$Fr, in addition to the identification of the low-lying states of $^{202,204}$Fr performed at the CRIS experiment. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1402.4266v1-abstract-full').style.display = 'none'; document.getElementById('1402.4266v1-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, 2014; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2014. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Accepted for publication with Physical Review X</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. X 4 , 011055 (2014) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1310.5171">arXiv:1310.5171</a> <span> [<a href="https://arxiv.org/pdf/1310.5171">pdf</a>, <a href="https://arxiv.org/format/1310.5171">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2014.02.012">10.1016/j.physletb.2014.02.012 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Nuclear charge radii of potassium isotopes beyond N=28 </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Kreim%2C+K">K. Kreim</a>, <a href="/search/nucl-ex?searchtype=author&query=Bissell%2C+M+L">M. L. Bissell</a>, <a href="/search/nucl-ex?searchtype=author&query=Papuga%2C+J">J. Papuga</a>, <a href="/search/nucl-ex?searchtype=author&query=Blaum%2C+K">K. Blaum</a>, <a href="/search/nucl-ex?searchtype=author&query=De+Rydt%2C+M">M. De Rydt</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=Goriely%2C+S">S. Goriely</a>, <a href="/search/nucl-ex?searchtype=author&query=Heylen%2C+H">H. Heylen</a>, <a href="/search/nucl-ex?searchtype=author&query=Kowalska%2C+M">M. Kowalska</a>, <a href="/search/nucl-ex?searchtype=author&query=Neugart%2C+R">R. Neugart</a>, <a href="/search/nucl-ex?searchtype=author&query=Neyens%2C+G">G. Neyens</a>, <a href="/search/nucl-ex?searchtype=author&query=N%C3%B6rtersh%C3%A4user%2C+W">W. N枚rtersh盲user</a>, <a href="/search/nucl-ex?searchtype=author&query=Rajabali%2C+M+M">M. M. Rajabali</a>, <a href="/search/nucl-ex?searchtype=author&query=Alarc%C3%B3n%2C+R+S">R. S谩nchez Alarc贸n</a>, <a href="/search/nucl-ex?searchtype=author&query=Stroke%2C+H+H">H. H. Stroke</a>, <a href="/search/nucl-ex?searchtype=author&query=Yordanov%2C+D+T">D. T. Yordanov</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="1310.5171v1-abstract-short" style="display: inline;"> We report on the measurement of optical isotope shifts for $^{38,39,42,44,46\text{-}51}$K relative to $^{47}$K from which changes in the nuclear mean square charge radii across the N=28 shell closure are deduced. The investigation was carried out by bunched-beam collinear laser spectroscopy at the CERN-ISOLDE radioactive ion-beam facility. Mean square charge radii are now known from $^{37}$K to… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1310.5171v1-abstract-full').style.display = 'inline'; document.getElementById('1310.5171v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1310.5171v1-abstract-full" style="display: none;"> We report on the measurement of optical isotope shifts for $^{38,39,42,44,46\text{-}51}$K relative to $^{47}$K from which changes in the nuclear mean square charge radii across the N=28 shell closure are deduced. The investigation was carried out by bunched-beam collinear laser spectroscopy at the CERN-ISOLDE radioactive ion-beam facility. Mean square charge radii are now known from $^{37}$K to $^{51}$K, covering all $谓f_{7/2}$-shell as well as all $谓p_{3/2}$-shell nuclei. These measurements, in conjunction with those of Ca, Cr, Mn and Fe, provide a first insight into the $Z$ dependence of the evolution of nuclear size above the shell closure at N=28. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1310.5171v1-abstract-full').style.display = 'none'; document.getElementById('1310.5171v1-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 October, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2013. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1305.2965">arXiv:1305.2965</a> <span> [<a href="https://arxiv.org/pdf/1305.2965">pdf</a>, <a href="https://arxiv.org/ps/1305.2965">ps</a>, <a href="https://arxiv.org/format/1305.2965">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.110.172503">10.1103/PhysRevLett.110.172503 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Spins and Magnetic Moments of $^{49}$K and $^{51}$K: establishing the 1/2$^+$ and 3/2$^+$ level ordering beyond $N$ = 28 </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Papuga%2C+J">J. Papuga</a>, <a href="/search/nucl-ex?searchtype=author&query=Bissell%2C+M+L">M. L. Bissell</a>, <a href="/search/nucl-ex?searchtype=author&query=Kreim%2C+K">K. Kreim</a>, <a href="/search/nucl-ex?searchtype=author&query=Blaum%2C+K">K. Blaum</a>, <a href="/search/nucl-ex?searchtype=author&query=Brown%2C+B+A">B. A. Brown</a>, <a href="/search/nucl-ex?searchtype=author&query=De+Rydt%2C+M">M. De Rydt</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=Heylen%2C+H">H. Heylen</a>, <a href="/search/nucl-ex?searchtype=author&query=Kowalska%2C+M">M. Kowalska</a>, <a href="/search/nucl-ex?searchtype=author&query=Neugart%2C+R">R. Neugart</a>, <a href="/search/nucl-ex?searchtype=author&query=Neyens%2C+G">G. Neyens</a>, <a href="/search/nucl-ex?searchtype=author&query=N%C3%B6rtersh%C3%A4user%2C+W">W. N枚rtersh盲user</a>, <a href="/search/nucl-ex?searchtype=author&query=Otsuka%2C+T">T. Otsuka</a>, <a href="/search/nucl-ex?searchtype=author&query=Rajabali%2C+M+M">M. M. Rajabali</a>, <a href="/search/nucl-ex?searchtype=author&query=S%C3%A1nchez%2C+R">R. S谩nchez</a>, <a href="/search/nucl-ex?searchtype=author&query=Utsuno%2C+Y">Y. Utsuno</a>, <a href="/search/nucl-ex?searchtype=author&query=Yordanov%2C+D+T">D. T. Yordanov</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="1305.2965v1-abstract-short" style="display: inline;"> The ground-state spins and magnetic moments of $^{49,51}$K have been measured using bunched-beam high-resolution collinear laser spectroscopy at ISOLDE-CERN. For $^{49}$K a ground-state spin $I = 1/2$ was firmly established. The observed hyperfine structure of $^{51}$K requires a spin $I > 1/2$ and from its magnetic moment $渭(^{51}\text{K})= +0.5129(22)\, 渭_N$ a spin/parity $I^蟺=3/2^+$ with a domi… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1305.2965v1-abstract-full').style.display = 'inline'; document.getElementById('1305.2965v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1305.2965v1-abstract-full" style="display: none;"> The ground-state spins and magnetic moments of $^{49,51}$K have been measured using bunched-beam high-resolution collinear laser spectroscopy at ISOLDE-CERN. For $^{49}$K a ground-state spin $I = 1/2$ was firmly established. The observed hyperfine structure of $^{51}$K requires a spin $I > 1/2$ and from its magnetic moment $渭(^{51}\text{K})= +0.5129(22)\, 渭_N$ a spin/parity $I^蟺=3/2^+$ with a dominant $蟺1d_{3/2}^{-1}$ hole configuration was deduced. This establishes for the first time the re-inversion of the single-particle levels and illustrates the prominent role of the residual monopole interaction for single-particle levels and shell evolution. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1305.2965v1-abstract-full').style.display = 'none'; document.getElementById('1305.2965v1-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, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2013. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">5 pages, 3 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Physical Review Letters; Vol. 110, 172503, (2013) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1011.5420">arXiv:1011.5420</a> <span> [<a href="https://arxiv.org/pdf/1011.5420">pdf</a>, <a href="https://arxiv.org/ps/1011.5420">ps</a>, <a href="https://arxiv.org/format/1011.5420">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.82.064311">10.1103/PhysRevC.82.064311 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Nuclear spins, magnetic moments and quadrupole moments of Cu isotopes from N = 28 to N = 46: probes for core polarization effects </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Vingerhoets%2C+P">P. Vingerhoets</a>, <a href="/search/nucl-ex?searchtype=author&query=Flanagan%2C+K+T">K. T. Flanagan</a>, <a href="/search/nucl-ex?searchtype=author&query=Avgoulea%2C+M">M. Avgoulea</a>, <a href="/search/nucl-ex?searchtype=author&query=Billowes%2C+J">J. Billowes</a>, <a href="/search/nucl-ex?searchtype=author&query=Bissell%2C+M+L">M. L. Bissell</a>, <a href="/search/nucl-ex?searchtype=author&query=Blaum%2C+K">K. Blaum</a>, <a href="/search/nucl-ex?searchtype=author&query=Brown%2C+B+A">B. A. Brown</a>, <a href="/search/nucl-ex?searchtype=author&query=Cheal%2C+B">B. Cheal</a>, <a href="/search/nucl-ex?searchtype=author&query=De+Rydt%2C+M">M. De Rydt</a>, <a href="/search/nucl-ex?searchtype=author&query=Forest%2C+D+H">D. H. Forest</a>, <a href="/search/nucl-ex?searchtype=author&query=Geppert%2C+C">Ch. Geppert</a>, <a href="/search/nucl-ex?searchtype=author&query=Honma%2C+M">M. Honma</a>, <a href="/search/nucl-ex?searchtype=author&query=Kowalska%2C+M">M. Kowalska</a>, <a href="/search/nucl-ex?searchtype=author&query=Kramer%2C+J">J. Kramer</a>, <a href="/search/nucl-ex?searchtype=author&query=Krieger%2C+A">A. Krieger</a>, <a href="/search/nucl-ex?searchtype=author&query=Mane%2C+E">E. Mane</a>, <a href="/search/nucl-ex?searchtype=author&query=Neugart%2C+R">R. Neugart</a>, <a href="/search/nucl-ex?searchtype=author&query=Neyens%2C+G">G. Neyens</a>, <a href="/search/nucl-ex?searchtype=author&query=Nortershauser%2C+W">W. Nortershauser</a>, <a href="/search/nucl-ex?searchtype=author&query=Otsuka%2C+T">T. Otsuka</a>, <a href="/search/nucl-ex?searchtype=author&query=Schug%2C+M">M. Schug</a>, <a href="/search/nucl-ex?searchtype=author&query=Stroke%2C+H+H">H. H. Stroke</a>, <a href="/search/nucl-ex?searchtype=author&query=Tungate%2C+G">G. Tungate</a>, <a href="/search/nucl-ex?searchtype=author&query=Yordanov%2C+D+T">D. T. Yordanov</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="1011.5420v1-abstract-short" style="display: inline;"> Measurements of the ground-state nuclear spins, magnetic and quadrupole moments of the copper isotopes from 61Cu up to 75Cu are reported. The experiments were performed at the ISOLDE facility, using the technique of collinear laser spectroscopy. The trend in the magnetic moments between the N=28 and N=50 shell closures is reasonably reproduced by large-scale shell-model calculations starting from… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1011.5420v1-abstract-full').style.display = 'inline'; document.getElementById('1011.5420v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1011.5420v1-abstract-full" style="display: none;"> Measurements of the ground-state nuclear spins, magnetic and quadrupole moments of the copper isotopes from 61Cu up to 75Cu are reported. The experiments were performed at the ISOLDE facility, using the technique of collinear laser spectroscopy. The trend in the magnetic moments between the N=28 and N=50 shell closures is reasonably reproduced by large-scale shell-model calculations starting from a 56Ni core. The quadrupole moments reveal a strong polarization of the underlying Ni core when the neutron shell is opened, which is however strongly reduced at N=40 due to the parity change between the $pf$ and $g$ orbits. No enhanced core polarization is seen beyond N=40. Deviations between measured and calculated moments are attributed to the softness of the 56Ni core and weakening of the Z=28 and N=28 shell gaps. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1011.5420v1-abstract-full').style.display = 'none'; document.getElementById('1011.5420v1-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 November, 2010; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2010. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">13 pagers, 19 figures, accepted by 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.C82:064311,2010 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/0906.4272">arXiv:0906.4272</a> <span> [<a href="https://arxiv.org/pdf/0906.4272">pdf</a>, <a href="https://arxiv.org/ps/0906.4272">ps</a>, <a href="https://arxiv.org/format/0906.4272">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2009.06.043">10.1016/j.physletb.2009.06.043 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Precision measurement of the electric quadrupole moment of 31Al and determination of the effective proton charge in the sd-shell </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=De+Rydt%2C+M">M. De Rydt</a>, <a href="/search/nucl-ex?searchtype=author&query=Neyens%2C+G">G. Neyens</a>, <a href="/search/nucl-ex?searchtype=author&query=Asahi%2C+K">K. Asahi</a>, <a href="/search/nucl-ex?searchtype=author&query=Balabanski%2C+D+L">D. L. Balabanski</a>, <a href="/search/nucl-ex?searchtype=author&query=Daugas%2C+J+M">J. M. Daugas</a>, <a href="/search/nucl-ex?searchtype=author&query=Depuydt%2C+M">M. Depuydt</a>, <a href="/search/nucl-ex?searchtype=author&query=Gaudefroy%2C+L">L. Gaudefroy</a>, <a href="/search/nucl-ex?searchtype=author&query=Grevy%2C+S">S. Grevy</a>, <a href="/search/nucl-ex?searchtype=author&query=Hasama%2C+Y">Y. Hasama</a>, <a href="/search/nucl-ex?searchtype=author&query=Ichikawa%2C+Y">Y. Ichikawa</a>, <a href="/search/nucl-ex?searchtype=author&query=Morel%2C+P">P. Morel</a>, <a href="/search/nucl-ex?searchtype=author&query=Nagatomo%2C+T">T. Nagatomo</a>, <a href="/search/nucl-ex?searchtype=author&query=Otsuka%2C+T">T. Otsuka</a>, <a href="/search/nucl-ex?searchtype=author&query=Perrot%2C+L">L. Perrot</a>, <a href="/search/nucl-ex?searchtype=author&query=Shimada%2C+K">K. Shimada</a>, <a href="/search/nucl-ex?searchtype=author&query=Stodel%2C+C">C. Stodel</a>, <a href="/search/nucl-ex?searchtype=author&query=Thomas%2C+J+C">J. C. Thomas</a>, <a href="/search/nucl-ex?searchtype=author&query=Ueno%2C+H">H. Ueno</a>, <a href="/search/nucl-ex?searchtype=author&query=Utsuno%2C+Y">Y. Utsuno</a>, <a href="/search/nucl-ex?searchtype=author&query=Vanderheijden%2C+W">W. Vanderheijden</a>, <a href="/search/nucl-ex?searchtype=author&query=Vermeulen%2C+.">. Vermeulen</a>, <a href="/search/nucl-ex?searchtype=author&query=Vingerhoets%2C+P">P. Vingerhoets</a>, <a href="/search/nucl-ex?searchtype=author&query=Yoshimi%2C+A">A. Yoshimi</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="0906.4272v1-abstract-short" style="display: inline;"> he electric quadrupole coupling constant of the 31Al ground state is measured to be nu_Q = |eQV_{zz}/h| = 2196(21)kHz using two different beta-NMR (Nuclear Magnetic Resonance) techniques. For the first time, a direct comparison is made between the continuous rf technique and the adiabatic fast passage method. The obtained coupling constants of both methods are in excellent agreement with each ot… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('0906.4272v1-abstract-full').style.display = 'inline'; document.getElementById('0906.4272v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="0906.4272v1-abstract-full" style="display: none;"> he electric quadrupole coupling constant of the 31Al ground state is measured to be nu_Q = |eQV_{zz}/h| = 2196(21)kHz using two different beta-NMR (Nuclear Magnetic Resonance) techniques. For the first time, a direct comparison is made between the continuous rf technique and the adiabatic fast passage method. The obtained coupling constants of both methods are in excellent agreement with each other and a precise value for the quadrupole moment of 31Al has been deduced: |Q(31Al)| = 134.0(16) mb. Comparison of this value with large-scale shell-model calculations in the sd and sdpf valence spaces suggests that the 31Al ground state is dominated by normal sd-shell configurations with a possible small contribution of intruder states. The obtained value for |Q(31Al)| and a compilation of measured quadrupole moments of odd-Z even-N isotopes in comparison with shell-model calculations shows that the proton effective charge e_p=1.1 e provides a much better description of the nuclear properties in the sd-shell than the adopted value e_p=1.3 e. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('0906.4272v1-abstract-full').style.display = 'none'; document.getElementById('0906.4272v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 23 June, 2009; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2009. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys.Lett.B678:344-349,2009 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/0809.3202">arXiv:0809.3202</a> <span> [<a href="https://arxiv.org/pdf/0809.3202">pdf</a>, <a href="https://arxiv.org/ps/0809.3202">ps</a>, <a href="https://arxiv.org/format/0809.3202">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.101.132502">10.1103/PhysRevLett.101.132502 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Precision Measurement of 11Li moments: Influence of Halo Neutrons on the 9Li Core </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Neugart%2C+R">R. Neugart</a>, <a href="/search/nucl-ex?searchtype=author&query=Balabanski%2C+D+L">D. L. Balabanski</a>, <a href="/search/nucl-ex?searchtype=author&query=Blaum%2C+K">K. Blaum</a>, <a href="/search/nucl-ex?searchtype=author&query=Borremans%2C+D">D. Borremans</a>, <a href="/search/nucl-ex?searchtype=author&query=Himpe%2C+P">P. Himpe</a>, <a href="/search/nucl-ex?searchtype=author&query=Kowalska%2C+M">M. Kowalska</a>, <a href="/search/nucl-ex?searchtype=author&query=Lievens%2C+P">P. Lievens</a>, <a href="/search/nucl-ex?searchtype=author&query=Mallion%2C+S">S. Mallion</a>, <a href="/search/nucl-ex?searchtype=author&query=Neyens%2C+G">G. Neyens</a>, <a href="/search/nucl-ex?searchtype=author&query=Vermeulen%2C+N">N. Vermeulen</a>, <a href="/search/nucl-ex?searchtype=author&query=Yordanov%2C+D+T">D. T. Yordanov</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="0809.3202v1-abstract-short" style="display: inline;"> The electric quadrupole moment and the magnetic moment of the 11Li halo nucleus have been measured with more than an order of magnitude higher precision than before, |Q| = 33.3(5)mb and mu=3.6712(3)mu_N, revealing a 8.8(1.5)% increase of the quadrupole moment relative to that of 9Li. This result is compared to various models that aim at describing the halo properties. In the shell model an incre… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('0809.3202v1-abstract-full').style.display = 'inline'; document.getElementById('0809.3202v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="0809.3202v1-abstract-full" style="display: none;"> The electric quadrupole moment and the magnetic moment of the 11Li halo nucleus have been measured with more than an order of magnitude higher precision than before, |Q| = 33.3(5)mb and mu=3.6712(3)mu_N, revealing a 8.8(1.5)% increase of the quadrupole moment relative to that of 9Li. This result is compared to various models that aim at describing the halo properties. In the shell model an increased quadrupole moment points to a significant occupation of the 1d orbits, whereas in a simple halo picture this can be explained by relating the quadrupole moments of the proton distribution to the charge radii. Advanced models so far fail to reproduce simultaneously the trends observed in the radii and quadrupole moments of the lithium isotopes. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('0809.3202v1-abstract-full').style.display = 'none'; document.getElementById('0809.3202v1-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 September, 2008; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 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, 4 figures, 1 table</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys.Rev.Lett.101:132502,2008 </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/0404038">arXiv:nucl-ex/0404038</a> <span> [<a href="https://arxiv.org/pdf/nucl-ex/0404038">pdf</a>, <a href="https://arxiv.org/ps/nucl-ex/0404038">ps</a>, <a href="https://arxiv.org/format/nucl-ex/0404038">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.93.142503">10.1103/PhysRevLett.93.142503 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Magnetic Moment of the Fragmentation Aligned 61Fe(9/2)+ Isomer </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Matea%2C+I">I. Matea</a>, <a href="/search/nucl-ex?searchtype=author&query=Georgiev%2C+G">G. Georgiev</a>, <a href="/search/nucl-ex?searchtype=author&query=Daugas%2C+J+M">J. M. Daugas</a>, <a href="/search/nucl-ex?searchtype=author&query=Hass%2C+M">M. Hass</a>, <a href="/search/nucl-ex?searchtype=author&query=Neyens%2C+G">G. Neyens</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/0404038v1-abstract-short" style="display: inline;"> We report on the g factor measurement of the isomer in $^{61}Fe$ ($E^{*}=861 keV$). The isomer was produced and spin-aligned via a projectile-fragmentation reaction at intermediate energy, the Time Dependent Perturbed Angular Distribution (TDPAD) method being used for the measurement of the g factor. For the first time, due to significant improvements of the experimental technique, an appreciabl… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('nucl-ex/0404038v1-abstract-full').style.display = 'inline'; document.getElementById('nucl-ex/0404038v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="nucl-ex/0404038v1-abstract-full" style="display: none;"> We report on the g factor measurement of the isomer in $^{61}Fe$ ($E^{*}=861 keV$). The isomer was produced and spin-aligned via a projectile-fragmentation reaction at intermediate energy, the Time Dependent Perturbed Angular Distribution (TDPAD) method being used for the measurement of the g factor. For the first time, due to significant improvements of the experimental technique, an appreciable residual alignment of the isomer has been observed, allowing a precise determination of its g factor: $g=-0.229(2)$. Comparison of the experimental g factor with shell-model and mean field calculations confirms the $9/2^+$ spin and parity assignments and suggests the onset of deformation due to the intrusion of Nilsson orbitals emerging from the $谓g_{9/2}$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('nucl-ex/0404038v1-abstract-full').style.display = 'none'; document.getElementById('nucl-ex/0404038v1-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 April, 2004; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2004. </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 figures. Submitted to Phys. Rev. Lett</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys.Rev.Lett. 93 (2004) 142503 </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/0103012">arXiv:nucl-ex/0103012</a> <span> [<a href="https://arxiv.org/pdf/nucl-ex/0103012">pdf</a>, <a href="https://arxiv.org/ps/nucl-ex/0103012">ps</a>, <a href="https://arxiv.org/format/nucl-ex/0103012">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"> Quadrupole moments of high-spin isomers: test of the tilted-axis cranking model </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Balabanski%2C+D+L">D. L. Balabanski</a>, <a href="/search/nucl-ex?searchtype=author&query=Vyvey%2C+K">K. Vyvey</a>, <a href="/search/nucl-ex?searchtype=author&query=Neyens%2C+G">G. Neyens</a>, <a href="/search/nucl-ex?searchtype=author&query=Almehed%2C+D">D. Almehed</a>, <a href="/search/nucl-ex?searchtype=author&query=Blaha%2C+P">P. Blaha</a>, <a href="/search/nucl-ex?searchtype=author&query=Borremans%2C+D">D. Borremans</a>, <a href="/search/nucl-ex?searchtype=author&query=Chmel%2C+S">S. Chmel</a>, <a href="/search/nucl-ex?searchtype=author&query=Coulier%2C+N">N. Coulier</a>, <a href="/search/nucl-ex?searchtype=author&query=Coussement%2C+R">R. Coussement</a>, <a href="/search/nucl-ex?searchtype=author&query=De+Clercq%2C+W">W. De Clercq</a>, <a href="/search/nucl-ex?searchtype=author&query=Frauendorf%2C+S">S. Frauendorf</a>, <a href="/search/nucl-ex?searchtype=author&query=Georgiev%2C+G">G. Georgiev</a>, <a href="/search/nucl-ex?searchtype=author&query=Hubel%2C+H">H. Hubel</a>, <a href="/search/nucl-ex?searchtype=author&query=Lepine-Szily%2C+A">A. Lepine-Szily</a>, <a href="/search/nucl-ex?searchtype=author&query=Mineva%2C+M">M. Mineva</a>, <a href="/search/nucl-ex?searchtype=author&query=Nenoff%2C+N">N. Nenoff</a>, <a href="/search/nucl-ex?searchtype=author&query=Pancholi%2C+S">S. Pancholi</a>, <a href="/search/nucl-ex?searchtype=author&query=Rossbach%2C+D">D. Rossbach</a>, <a href="/search/nucl-ex?searchtype=author&query=Schwengner%2C+R">R. Schwengner</a>, <a href="/search/nucl-ex?searchtype=author&query=Teughels%2C+S">S. Teughels</a>, <a href="/search/nucl-ex?searchtype=author&query=Walker%2C+P+M">P. M. Walker</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/0103012v1-abstract-short" style="display: inline;"> We report the results of recent measurements of the spectroscopic quadrupole moments of high-spin isomers. For the K=35/2- five-quasiparticle isomer in 179W we measured Q_s=4.00(+0.83)(-1.06)eb. It corresponds to a smaller deformation compared to the ground states of the W isotopes and is in disagreement with the current theoretical predictions. We also measured the quadrupole moment of the I=11… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('nucl-ex/0103012v1-abstract-full').style.display = 'inline'; document.getElementById('nucl-ex/0103012v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="nucl-ex/0103012v1-abstract-full" style="display: none;"> We report the results of recent measurements of the spectroscopic quadrupole moments of high-spin isomers. For the K=35/2- five-quasiparticle isomer in 179W we measured Q_s=4.00(+0.83)(-1.06)eb. It corresponds to a smaller deformation compared to the ground states of the W isotopes and is in disagreement with the current theoretical predictions. We also measured the quadrupole moment of the I=11- isomer in 196Pb, Q_s=(-)3.41(66)eb. It has the same proton s(-2)1/2 h9/2 i13/2 configuration as the one suggested for the I=16- magnetic bandhead which allows to deduce the quadrupole moment of the 16- state as Q_s=-0.316(97)eb. This small value proves the near sphericity of the bandhead. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('nucl-ex/0103012v1-abstract-full').style.display = 'none'; document.getElementById('nucl-ex/0103012v1-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 March, 2001; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2001. </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">Contributed paper at "High Spin Physics 2001", see http://www.fuw.edu.pl/~hs2001/, to be published in Acta Physica Polonica B</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Acta Phys.Polon. B32 (2001) 2655-2660 </p> </li> </ol> <div class="is-hidden-tablet">  <span class="help" style="display: inline-block;"><a href="https://github.com/arXiv/arxiv-search/releases">Search v0.5.6 released 2020-02-24</a>  </span> </div> </div> </main> <footer> <div class="columns is-desktop" role="navigation" aria-label="Secondary">  <div class="column"> <div class="columns"> <div class="column"> <ul class="nav-spaced"> <li><a href="https://info.arxiv.org/about">About</a></li> <li><a href="https://info.arxiv.org/help">Help</a></li> </ul> </div> <div class="column"> <ul class="nav-spaced"> <li> <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" class="icon filter-black" role="presentation"><title>contact arXiv</title><desc>Click here to contact arXiv</desc><path d="M502.3 190.8c3.9-3.1 9.7-.2 9.7 4.7V400c0 26.5-21.5 48-48 48H48c-26.5 0-48-21.5-48-48V195.6c0-5 5.7-7.8 9.7-4.7 22.4 17.4 52.1 39.5 154.1 113.6 21.1 15.4 56.7 47.8 92.2 47.6 35.7.3 72-32.8 92.3-47.6 102-74.1 131.6-96.3 154-113.7zM256 320c23.2.4 56.6-29.2 73.4-41.4 132.7-96.3 142.8-104.7 173.4-128.7 5.8-4.5 9.2-11.5 9.2-18.9v-19c0-26.5-21.5-48-48-48H48C21.5 64 0 85.5 0 112v19c0 7.4 3.4 14.3 9.2 18.9 30.6 23.9 40.7 32.4 173.4 128.7 16.8 12.2 50.2 41.8 73.4 41.4z"/></svg> <a href="https://info.arxiv.org/help/contact.html"> Contact</a> </li> <li> <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" class="icon filter-black" role="presentation"><title>subscribe to arXiv mailings</title><desc>Click here to subscribe</desc><path d="M476 3.2L12.5 270.6c-18.1 10.4-15.8 35.6 2.2 43.2L121 358.4l287.3-253.2c5.5-4.9 13.3 2.6 8.6 8.3L176 407v80.5c0 23.6 28.5 32.9 42.5 15.8L282 426l124.6 52.2c14.2 6 30.4-2.9 33-18.2l72-432C515 7.8 493.3-6.8 476 3.2z"/></svg> <a href="https://info.arxiv.org/help/subscribe"> Subscribe</a> </li> </ul> </div> </div> </div>   <div class="column"> <div class="columns"> <div class="column"> <ul class="nav-spaced"> <li><a href="https://info.arxiv.org/help/license/index.html">Copyright</a></li> <li><a href="https://info.arxiv.org/help/policies/privacy_policy.html">Privacy Policy</a></li> </ul> </div> <div class="column sorry-app-links"> <ul class="nav-spaced"> <li><a href="https://info.arxiv.org/help/web_accessibility.html">Web Accessibility Assistance</a></li> <li> <p class="help"> <a class="a11y-main-link" href="https://status.arxiv.org" target="_blank">arXiv Operational Status <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 256 512" class="icon filter-dark_grey" role="presentation"><path d="M224.3 273l-136 136c-9.4 9.4-24.6 9.4-33.9 0l-22.6-22.6c-9.4-9.4-9.4-24.6 0-33.9l96.4-96.4-96.4-96.4c-9.4-9.4-9.4-24.6 0-33.9L54.3 103c9.4-9.4 24.6-9.4 33.9 0l136 136c9.5 9.4 9.5 24.6.1 34z"/></svg></a><br> Get status notifications via <a class="is-link" href="https://subscribe.sorryapp.com/24846f03/email/new" target="_blank"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" class="icon filter-black" role="presentation"><path d="M502.3 190.8c3.9-3.1 9.7-.2 9.7 4.7V400c0 26.5-21.5 48-48 48H48c-26.5 0-48-21.5-48-48V195.6c0-5 5.7-7.8 9.7-4.7 22.4 17.4 52.1 39.5 154.1 113.6 21.1 15.4 56.7 47.8 92.2 47.6 35.7.3 72-32.8 92.3-47.6 102-74.1 131.6-96.3 154-113.7zM256 320c23.2.4 56.6-29.2 73.4-41.4 132.7-96.3 142.8-104.7 173.4-128.7 5.8-4.5 9.2-11.5 9.2-18.9v-19c0-26.5-21.5-48-48-48H48C21.5 64 0 85.5 0 112v19c0 7.4 3.4 14.3 9.2 18.9 30.6 23.9 40.7 32.4 173.4 128.7 16.8 12.2 50.2 41.8 73.4 41.4z"/></svg>email</a> or <a class="is-link" href="https://subscribe.sorryapp.com/24846f03/slack/new" target="_blank"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 448 512" class="icon filter-black" role="presentation"><path d="M94.12 315.1c0 25.9-21.16 47.06-47.06 47.06S0 341 0 315.1c0-25.9 21.16-47.06 47.06-47.06h47.06v47.06zm23.72 0c0-25.9 21.16-47.06 47.06-47.06s47.06 21.16 47.06 47.06v117.84c0 25.9-21.16 47.06-47.06 47.06s-47.06-21.16-47.06-47.06V315.1zm47.06-188.98c-25.9 0-47.06-21.16-47.06-47.06S139 32 164.9 32s47.06 21.16 47.06 47.06v47.06H164.9zm0 23.72c25.9 0 47.06 21.16 47.06 47.06s-21.16 47.06-47.06 47.06H47.06C21.16 243.96 0 222.8 0 196.9s21.16-47.06 47.06-47.06H164.9zm188.98 47.06c0-25.9 21.16-47.06 47.06-47.06 25.9 0 47.06 21.16 47.06 47.06s-21.16 47.06-47.06 47.06h-47.06V196.9zm-23.72 0c0 25.9-21.16 47.06-47.06 47.06-25.9 0-47.06-21.16-47.06-47.06V79.06c0-25.9 21.16-47.06 47.06-47.06 25.9 0 47.06 21.16 47.06 47.06V196.9zM283.1 385.88c25.9 0 47.06 21.16 47.06 47.06 0 25.9-21.16 47.06-47.06 47.06-25.9 0-47.06-21.16-47.06-47.06v-47.06h47.06zm0-23.72c-25.9 0-47.06-21.16-47.06-47.06 0-25.9 21.16-47.06 47.06-47.06h117.84c25.9 0 47.06 21.16 47.06 47.06 0 25.9-21.16 47.06-47.06 47.06H283.1z"/></svg>slack</a> </p> </li> </ul> </div> </div> </div>  </div> </footer> <script src="https://static.arxiv.org/static/base/1.0.0a5/js/member_acknowledgement.js"></script> </body> </html>

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