Normal or abnormal isospin-fractionation as a qualitative probe of nuclear symmetry energy at supradensities

Normal or abnormal isospin-fractionation as a qualitative probe of nuclear symmetry energy at supradensities

Within two different frameworks of isospin-dependent transport model, effect of nuclear symmetry energy at supradensities on the isospin-fractionation (IsoF) was investigated. With positive/negative symmetry potential at supradensities (i.e., values of symmetry energy increase/decrease with density...

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Main Authors: Wenmei Guo, Gaochan Yong, Yongjia Wang, Qingfeng Li, Hongfei Zhang, Wei Zuo
Format: Article
Language:English
Published: Elsevier 2014-11-01
Series:Physics Letters B
Online Access:http://www.sciencedirect.com/science/article/pii/S0370269314007345
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spelling doaj-b78f1c376feb47a29591d748fb9cf2e22020-11-24T20:43:47ZengElsevierPhysics Letters B0370-26932014-11-01738397400Normal or abnormal isospin-fractionation as a qualitative probe of nuclear symmetry energy at supradensitiesWenmei Guo0Gaochan Yong1Yongjia Wang2Qingfeng Li3Hongfei Zhang4Wei Zuo5Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China; University of Chinese Academy of Sciences, Beijing 100049, China; School of Science, Huzhou University, Huzhou 313000, ChinaInstitute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100190, China; Kavli Institute for Theoretical Physics, Chinese Academy of Sciences, Beijing 100190, China; Corresponding author.School of Science, Huzhou University, Huzhou 313000, China; School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, ChinaSchool of Science, Huzhou University, Huzhou 313000, ChinaSchool of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China; State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100190, China; Kavli Institute for Theoretical Physics, Chinese Academy of Sciences, Beijing 100190, ChinaInstitute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100190, China; Kavli Institute for Theoretical Physics, Chinese Academy of Sciences, Beijing 100190, ChinaWithin two different frameworks of isospin-dependent transport model, effect of nuclear symmetry energy at supradensities on the isospin-fractionation (IsoF) was investigated. With positive/negative symmetry potential at supradensities (i.e., values of symmetry energy increase/decrease with density above saturation density), for energetic nucleons, the value of neutron to proton ratio of free nucleons is larger/smaller than that of bound nucleon fragments. Compared with extensively studied quantitative observables of nuclear symmetry energy, the normal or abnormal isospin-fractionation of energetic nucleons can be a qualitative probe of nuclear symmetry energy at supradensities.http://www.sciencedirect.com/science/article/pii/S0370269314007345
collection DOAJ
language English
format Article
sources DOAJ
author Wenmei Guo
Gaochan Yong
Yongjia Wang
Qingfeng Li
Hongfei Zhang
Wei Zuo
spellingShingle Wenmei Guo
Gaochan Yong
Yongjia Wang
Qingfeng Li
Hongfei Zhang
Wei Zuo
Normal or abnormal isospin-fractionation as a qualitative probe of nuclear symmetry energy at supradensities
Physics Letters B
author_facet Wenmei Guo
Gaochan Yong
Yongjia Wang
Qingfeng Li
Hongfei Zhang
Wei Zuo
author_sort Wenmei Guo
title Normal or abnormal isospin-fractionation as a qualitative probe of nuclear symmetry energy at supradensities
title_short Normal or abnormal isospin-fractionation as a qualitative probe of nuclear symmetry energy at supradensities
title_full Normal or abnormal isospin-fractionation as a qualitative probe of nuclear symmetry energy at supradensities
title_fullStr Normal or abnormal isospin-fractionation as a qualitative probe of nuclear symmetry energy at supradensities
title_full_unstemmed Normal or abnormal isospin-fractionation as a qualitative probe of nuclear symmetry energy at supradensities
title_sort normal or abnormal isospin-fractionation as a qualitative probe of nuclear symmetry energy at supradensities
publisher Elsevier
series Physics Letters B
issn 0370-2693
publishDate 2014-11-01
description Within two different frameworks of isospin-dependent transport model, effect of nuclear symmetry energy at supradensities on the isospin-fractionation (IsoF) was investigated. With positive/negative symmetry potential at supradensities (i.e., values of symmetry energy increase/decrease with density above saturation density), for energetic nucleons, the value of neutron to proton ratio of free nucleons is larger/smaller than that of bound nucleon fragments. Compared with extensively studied quantitative observables of nuclear symmetry energy, the normal or abnormal isospin-fractionation of energetic nucleons can be a qualitative probe of nuclear symmetry energy at supradensities.
url http://www.sciencedirect.com/science/article/pii/S0370269314007345
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