Effects of the kinetic symmetry energy reduced by short-range correlations in heavy-ion collisions at intermediate energies

Bao-An Li, Wen-Jun Guo, and Zhaozhong Shi
Phys. Rev. C 91, 044601 – Published 1 April 2015

Abstract

Besides earlier predictions based on both phenomenological models and modern microscopic many-body theories, circumstantial evidence was recently found for a reduced kinetic symmetry energy of isospin-asymmetric nucleonic matter compared to the free Fermi gas model prediction due to the short-range correlation of high-momentum neutron-proton pairs. While keeping the total symmetry energy near the saturation density of nuclear matter consistent with existing experimental constraints, we examine the correspondingly enhanced role of the isospin degree of freedom in heavy-ion collisions at intermediate energies due to the reduced (enhanced) kinetic (potential) symmetry energy. Important observable consequences are investigated.

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  • Received 28 December 2014
  • Revised 12 March 2015

DOI:https://doi.org/10.1103/PhysRevC.91.044601

©2015 American Physical Society

Authors & Affiliations

Bao-An Li1, Wen-Jun Guo1,2, and Zhaozhong Shi1,3

  • 1Department of Physics and Astronomy, Texas A&M University–Commerce, Commerce, Texas 75429-3011, USA
  • 2College of Science, University of Shanghai for Science and Technology, Shanghai 200093, China
  • 3University of California at Berkeley, Berkeley, California 94720, USA

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Issue

Vol. 91, Iss. 4 — April 2015

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