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Mougeot M, Atanasov D, Blaum K, et al. Precision Mass Measurements of ^{58-63}Cr: Nuclear Collectivity Towards the N=40 Island of Inversion. Phys Rev Lett. 2018;120(23):232501doi: 10.1103/PhysRevLett.120.232501.
Mougeot, M., Atanasov, D., Blaum, K., Chrysalidis, K., Goodacre, T. D., Fedorov, D., Fedosseev, V., George, S., Herfurth, F., Holt, J. D., Lunney, D., Manea, V., Marsh, B., Neidherr, D., Rosenbusch, M., Rothe, S., Schweikhard, L., Schwenk, A., Seiffert, C., Simonis, J., Stroberg, S. R., Welker, A., Wienholtz, F., Wolf, R. N., & Zuber, K. (2018). Precision Mass Measurements of ^{58-63}Cr: Nuclear Collectivity Towards the N=40 Island of Inversion. Physical review letters, 120(23), 232501. https://doi.org/10.1103/PhysRevLett.120.232501
Mougeot, M, et al. "Precision Mass Measurements of ^{58-63}Cr: Nuclear Collectivity Towards the N=40 Island of Inversion." Physical review letters vol. 120,23 (2018): 232501. doi: https://doi.org/10.1103/PhysRevLett.120.232501
Mougeot M, Atanasov D, Blaum K, Chrysalidis K, Goodacre TD, Fedorov D, Fedosseev V, George S, Herfurth F, Holt JD, Lunney D, Manea V, Marsh B, Neidherr D, Rosenbusch M, Rothe S, Schweikhard L, Schwenk A, Seiffert C, Simonis J, Stroberg SR, Welker A, Wienholtz F, Wolf RN, Zuber K. Precision Mass Measurements of ^{58-63}Cr: Nuclear Collectivity Towards the N=40 Island of Inversion. Phys Rev Lett. 2018 Jun 08;120(23):232501. doi: 10.1103/PhysRevLett.120.232501. PMID: 29932682.
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Phys Rev Lett. 2018 Jun 08;120(23):232501. doi: 10.1103/PhysRevLett.120.232501.

Precision Mass Measurements of ^{58-63}Cr: Nuclear Collectivity Towards the N=40 Island of Inversion.

Physical review letters

M Mougeot, D Atanasov, K Blaum, K Chrysalidis, T Day Goodacre, D Fedorov, V Fedosseev, S George, F Herfurth, J D Holt, D Lunney, V Manea, B Marsh, D Neidherr, M Rosenbusch, S Rothe, L Schweikhard, A Schwenk, C Seiffert, J Simonis, S R Stroberg, A Welker, F Wienholtz, R N Wolf, K Zuber

Affiliations

  1. CSNSM-IN2P3-CNRS, Université Paris-Sud, Orsay 91405, France.
  2. Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, Heidelberg 69117, Germany.
  3. CERN, Geneva 1211, Switzerland.
  4. Institut für Physik, Johannes Gutenberg-Universität, D-55099 Mainz, Germany.
  5. School of Physics Astronomy, The University of Manchester, Manchester M13 9PL, United Kingdom.
  6. Petersburg Nuclear Physics Institute, Gatchina 188300, Russia.
  7. GSI Helmholtzzentrum für Schwerionenforschung GmbH, Darmstadt 64291, Germany.
  8. TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada.
  9. Universität Greifswald, Institut für Physik, Greifswald 17487, Germany.
  10. Institut für Kernphysik, Technische Universität Darmstadt, Darmstadt 64289, Germany.
  11. ExtreMe Matter Institute EMMI, GSI Helmholtzzentrum für Schwerionenforschung GmbH, Darmstadt 64291, Germany.
  12. Institut für Kernphysik and PRISMA Cluster of Excellence, Johannes Gutenberg-Universität, Mainz 55099, Germany.
  13. Institut für Kern- und Teilchenphysik, Technische Universität Dresden, Dresden 01069, Germany.

PMID: 29932682 DOI: 10.1103/PhysRevLett.120.232501

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 midshell region, which is a gateway to the second island of inversion around 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 ab initio in-medium similarity renormalization group, the first such results for open-shell chromium isotopes.

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