Thomas-Ehrman effect in a three-body model: The Ne16 case

L. V. Grigorenko, T. A. Golubkova, and M. V. Zhukov
Phys. Rev. C 91, 024325 – Published 25 February 2015

Abstract

The dynamic mechanism of the Thomas-Ehrman shift in three-cluster systems is studied by using the example of Ne16 and C16 isobaric mirror partners. We predict configuration mixings for 0+ and 2+ states in Ne16 and C16. Large isospin symmetry breaking on the level of wave function component weights is demonstrated for these states and discussed as a three-body mechanism of the Thomas-Ehrman shift. It is shown that the description of the Coulomb displacement energies requires consistency among three parameters: the Ne16 decay energy ET, the F15 ground-state energy Er, and the configuration mixing parameters for the Ne16 and C160+ and 2+ states. Based on this analysis we infer the F151/2+ ground-state energy to be Er=1.391.42 MeV.

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  • Received 3 November 2014
  • Revised 14 January 2015

DOI:https://doi.org/10.1103/PhysRevC.91.024325

©2015 American Physical Society

Authors & Affiliations

L. V. Grigorenko1,2,3, T. A. Golubkova4, and M. V. Zhukov5

  • 1Flerov Laboratory of Nuclear Reactions, JINR, RU-141980 Dubna, Russia
  • 2National Research Nuclear University MEPhI, Kashirskoye shosse 31, RU-115409 Moscow, Russia
  • 3National Research Center “Kurchatov Institute,” Kurchatov sq. 1, RU-123182 Moscow, Russia
  • 4Advanced Educational and Scientific Center, Moscow State University, Kremenchugskaya 11, RU-121357 Moscow, Russia
  • 5Fundamental Physics, Chalmers University of Technology, S-41296 Göteborg, Sweden

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Issue

Vol. 91, Iss. 2 — February 2015

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