| Article | |
| Report number | arXiv:1808.03997 |
| Title | Precision Mass Measurement of $^{58-63}$Cr: Nuclear Collectivity towards the $N=40$ Island of Inversion |
| Author(s) | Mougeot, M. (CSNSM, Orsay) ; Atanasov, D. (Heidelberg, Max Planck Inst.) ; Blaum, K. (Heidelberg, Max Planck Inst.) ; Chrysalidis, K. (CERN) ; Day Goodacre, T. (CERN ; Manchester U.) ; Fedorov, D. (St. Petersburg, INP) ; Fedosseev, V. (CERN) ; George, S. (Heidelberg, Max Planck Inst.) ; Herfurth, F. (Darmstadt, GSI) ; Holt, J.D. (TRIUMF) ; Lunney, D. (CSNSM, Orsay) ; Manea, V. (CERN) ; Marsh, B. (CERN) ; Neidherr, D. (Darmstadt, GSI) ; Rosenbusch, M. (Greifswald U.) ; Rothe, S. (CERN) ; Schweikhard, L. (Greifswald U.) ; Schwenk, A. (Darmstadt, Tech. Hochsch. ; Darmstadt, EMMI ; Heidelberg, Max Planck Inst.) ; Seiffert, C. (CERN) ; Simonis, J. (Mainz U., Inst. Kernphys. ; Darmstadt, Tech. Hochsch. ; Darmstadt, EMMI) ; Stroberg, S.R. (TRIUMF) ; Welker, A. (Dresden, Tech. U.) ; Wienholtz, F. (Greifswald U.) ; Wolf, R.N. (Heidelberg, Max Planck Inst.) ; Zuber, K. (Dresden, Tech. U.) |
| Publication | 2018-06-06 |
| Imprint | 2018-08-12 |
| Number of pages | 7 |
| Note | 6 pages, 3 figures, 1 table |
| In: | Phys. Rev. Lett. 120 (2018) 232501 |
| DOI | 10.1103/PhysRevLett.120.232501 (publication) |
| Subject category | nucl-th ; Nuclear Physics - Theory ; nucl-ex ; Nuclear Physics - Experiment |
| Accelerator/Facility, Experiment | CERN ISOLDE ; ISOLTRAP |
| Abstract | 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. |
| Copyright/License | preprint: (License: arXiv nonexclusive-distrib 1.0) publication: © 2018 The Authors (License: CC-BY-4.0) |
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Záznam vytvorený 2018-08-31, zmenený 2024-05-08
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