Precision Mass Measurement of \(^{58-63}\)Cr: Nuclear Collectivity towards the \emph{N}=40 Island of Inversion
The neutron-rich isotopes \(^{58-63}\)Cr were produced for the first time at the ISOLDE facility and their masses were measured with the ISOLTRAP spectrometer. The new values are up to 300 times more precise than those in the literature and indicate significantly different nuclear structure from the...
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| creator | Mougeot, Maxime Atanasov, Dinko Blaum, Klaus Chrysalidis, Katherina Tom Day Goodacre Fedorov, Dmitrii Fedosseev, Valentin George, Sebastian Herfurth, Frank Holt, Jason D Lunney, David Manea, Vladimir Marsh, Bruce Neidherr, Dennis Rosenbusch, Marco Rothe, Sebastian Schweikhard, Lutz Schwenk, Achim Seiffert, Christophe Simonis, Johannes Stroberg, Steven Ragnar Welker, Andree Wienholtz, Frank Wolf, Robert N Zuber, Kai |
| description | The neutron-rich isotopes \(^{58-63}\)Cr were produced for the first time at the ISOLDE facility and their masses were measured with the ISOLTRAP spectrometer. The new values are up to 300 times more precise than those in the literature and indicate significantly different nuclear structure from the new mass-surface trend. A gradual onset of deformation is found in this proton and neutron mid-shell region, which is a gateway to the second island of inversion around \emph{N}=40. In addition to comparisons with density-functional theory and large-scale shell-model calculations, we present predictions from the valence-space formulation of the \emph{ab initio} in-medium similarity renormalization group, the first such results for open-shell chromium isotopes. |
| doi_str_mv | 10.48550/arxiv.1808.03997 |
| format | Article |
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The new values are up to 300 times more precise than those in the literature and indicate significantly different nuclear structure from the new mass-surface trend. A gradual onset of deformation is found in this proton and neutron mid-shell region, which is a gateway to the second island of inversion around \emph{N}=40. In addition to comparisons with density-functional theory and large-scale shell-model calculations, we present predictions from the valence-space formulation of the \emph{ab initio} in-medium similarity renormalization group, the first such results for open-shell chromium isotopes.</description><identifier>EISSN: 2331-8422</identifier><identifier>DOI: 10.48550/arxiv.1808.03997</identifier><language>eng</language><publisher>Ithaca: Cornell University Library, arXiv.org</publisher><subject>Chromium isotopes ; Deformation ; Density functional theory ; Isotopes ; Nuclear structure ; Physics - Nuclear Experiment ; Physics - Nuclear Theory</subject><ispartof>arXiv.org, 2018-08</ispartof><rights>2018. This work is published under http://arxiv.org/licenses/nonexclusive-distrib/1.0/ (the “License”). 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| subjects | Chromium isotopes Deformation Density functional theory Isotopes Nuclear structure Physics - Nuclear Experiment Physics - Nuclear Theory |
| title | Precision Mass Measurement of \(^{58-63}\)Cr: Nuclear Collectivity towards the \emph{N}=40 Island of Inversion |
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