New local mass relation for isobaric analogue states and isospin-nonconserving forces

G. J. Fu, Y. Y. Cheng, Y. H. Zhang, P. Zhang, P. Shuai, Y. M. Zhao, and M. Wang
Phys. Rev. C 97, 024339 – Published 28 February 2018

Abstract

In this paper a new local mass relation is constructed for isobaric analogue states of four relating neighboring nuclei. The standard deviation from a linear fit of experimental data is 20–70 keV. The systematics of the local mass relation is discussed in terms of an empirical Coulomb energy formula and the isobaric multiplet mass equation. The local relation for nuclei in the pf shell is studied in the framework of the microscopic shell model. The results demonstrate the key roles played by the Coulomb interaction and an effective isospin-nonconserving nucleon-nucleon interaction in our new mass relation.

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  • Received 21 June 2017
  • Revised 14 November 2017

DOI:https://doi.org/10.1103/PhysRevC.97.024339

©2018 American Physical Society

Physics Subject Headings (PhySH)

Nuclear Physics

Authors & Affiliations

G. J. Fu1, Y. Y. Cheng2, Y. H. Zhang3,*, P. Zhang3,4, P. Shuai3, Y. M. Zhao5,6,†, and M. Wang3

  • 1School of Physics Science and Engineering, Tongji University, Shanghai 200092, China
  • 2Department of Physics, East China Normal University, Shanghai 200241, China
  • 3Key Laboratory of High Precision Nuclear Spectroscopy and Center for Nuclear Matter Science, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
  • 4Graduate University of Chinese Academy of Sciences, Beijing 100049, China
  • 5Shanghai Key Laboratory of Particle Physics and Cosmology, INPAC, School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
  • 6IFSA Collaborative Innovation Center, Shanghai Jiao Tong University, Shanghai 200240, China

  • *Corresponding author: yhzhang@impcas.ac.cn
  • Corresponding author: ymzhao@sjtu.edu.cn

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Issue

Vol. 97, Iss. 2 — February 2018

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