Highly deformed band structures due to core excitations in Xe123

Anwesha Basu, A. K. Singh, I. Ragnarsson, B. G. Carlsson, A. Kardan, G. B. Hagemann, G. Sletten, B. Herskind, H. Hübel, S. Chmel, A. N. Wilson, J. Rogers, R. V. F. Janssens, M. P. Carpenter, T. L. Khoo, F. G. Kondev, T. Lauritsen, S. Zhu, A. Korichi, P. Fallon, B. M. Nyakó, and J. Timár
Phys. Rev. C 103, 014301 – Published 4 January 2021

Abstract

High-spin states in Xe123 were populated in the Se80(Ca48, 5n)Xe123 reaction at a beam energy of 207 MeV. γ-ray coincidence events were recorded with the Gammasphere spectrometer. Four new high-spin bands have been discovered in this nucleus. The bands are compared with those calculated within the framework of cranked Nilsson-Strutinsky and cranked Nilsson-Strutinsky-Bogoliubov models. It is concluded that the configurations of the bands involve two-proton excitations across the Z=50 as well as excitation of neutrons across the N=82 shell gaps resulting in a large deformation, ɛ20.30 and γ5.

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  • Received 10 August 2020
  • Accepted 4 December 2020

DOI:https://doi.org/10.1103/PhysRevC.103.014301

©2021 American Physical Society

Physics Subject Headings (PhySH)

Nuclear Physics

Authors & Affiliations

Anwesha Basu and A. K. Singh

  • Department of Physics, Indian Institute of Technology Kharagpur, Kharagpur 721302, India

I. Ragnarsson and B. G. Carlsson

  • Division of Mathematical Physics, LTH, Lund University, Box 118, SE-221 00 Lund, Sweden

A. Kardan

  • School of Physics, Damghan University, P.O. Box 36716-41167, Damghan, Iran

G. B. Hagemann, G. Sletten, and B. Herskind

  • Niels Bohr Institute, Blegdamsvej 17, DK-2100 Copenhagen Ø, Denmark

H. Hübel and S. Chmel*

  • Helmholtz-Institut für Strahlen- und Kernphysik, Universität Bonn, Nussallee 14-16, D-53115 Bonn, Germany

A. N. Wilson and J. Rogers

  • Research School of Phyiscs and Engineering, ANU, Canberra, ACT 0200, Australia

R. V. F. Janssens

  • Department of Physics and Astronomy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA and Triangle Universities Nuclear Laboratory, Duke University, Durham, North Carolina 27708, USA

M. P. Carpenter, T. L. Khoo, F. G. Kondev, T. Lauritsen, and S. Zhu

  • Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, USA

A. Korichi

  • IJCLab-IN2P3/CNRS, F-91405 Orsay Campus, France

P. Fallon

  • Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA

B. M. Nyakó and J. Timár

  • Institute for Nuclear Research (Atomki), P.O. Box 51, 4001 Debrecen, Hungary

  • *Present address: Fraunhofer INT, Appelsgarten 2, D-53879 Euskirchen, Germany.
  • Present address: Faculty of Social Sciences, University of Stirling, Stirling FK9 4LA, United Kingdom.

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Issue

Vol. 103, Iss. 1 — January 2021

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