Rod-shaped Nuclei at Extreme Spin and Isospin

P. W. Zhao (赵鹏巍), N. Itagaki (板垣直之), and J. Meng (孟杰)
Phys. Rev. Lett. 115, 022501 – Published 8 July 2015
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Abstract

The anomalous rod shape in carbon isotopes has been investigated in the framework of the cranking covariant density functional theory, and two mechanisms to stabilize such a novel shape with respect to the bending motion, extreme spin, and isospin are simultaneously discussed for the first time in a self-consistent and microscopic way. By adding valence neutrons and rotating the system, we have found the mechanism stabilizing the rod shape; i.e., the σ orbitals (parallel to the symmetry axis) of the valence neutrons, important for the rod shape, are lowered by the rotation due to the Coriolis term. The spin and isospin effects enhance the stability of the rod-shaped configuration. This provides a strong hint that a rod shape could be realized in nuclei towards extreme spin and isospin.

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  • Received 15 October 2014

DOI:https://doi.org/10.1103/PhysRevLett.115.022501

© 2015 American Physical Society

Authors & Affiliations

P. W. Zhao (赵鹏巍)1,2,3, N. Itagaki (板垣直之)1, and J. Meng (孟杰)3,4,5,*

  • 1Yukawa Institute for Theoretical Physics, Kyoto University, Kyoto 606-8502, Japan
  • 2Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
  • 3State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China
  • 4School of Physics and Nuclear Energy Engineering, Beihang University, Beijing 100191, China
  • 5Department of Physics, University of Stellenbosch, Stellenbosch 7602, South Africa

  • *mengj@pku.edu.cn

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Issue

Vol. 115, Iss. 2 — 10 July 2015

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