Nucleon Emission Number as a Probe of Isospin-Dependent N-N Cross Section in Photonuclear Reactions

Based on the modified isospin-dependent quantum molecular dynamics model, the number of emitted nucleons in a photonuclear reaction is studied with different symmetry potentials and different isospin-dependent nucleonnucleon （N N） collision cross sections. It is found that the number of emitted nucl...

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Bibliographic Details
Published inChinese physics letters Vol. 31; no. 10; pp. 42 - 45
Main Author 郭文军 黄江伟 雍高产 张霄吉 张傲
Format Journal Article
LanguageEnglish
Published 01.10.2014
Subjects
光核反应
同位旋相关
对称性
探头
敏感
核子发射
碰撞截面
量子分子动力学模型
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ISSN0256-307X
1741-3540
DOI10.1088/0256-307X/31/10/102501

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Summary:Based on the modified isospin-dependent quantum molecular dynamics model, the number of emitted nucleons in a photonuclear reaction is studied with different symmetry potentials and different isospin-dependent nucleonnucleon （N N） collision cross sections. It is found that the number of emitted nucleons is sensitive to the isospin-dependent nucleon-nucleon cross section when the photon＇s energy is higher than 150 MeV, while it is insensitive to symmetry potential. The number of emitted neutrons is more sensitive to N N collision cross sections than that of protons. It is realized that the number of emitted neutrons can be used as a sensitive probe to extract the information of the isospin-dependent N N cross section at high energy photonuclear reactions.
Bibliography:11-1959/O4
Based on the modified isospin-dependent quantum molecular dynamics model, the number of emitted nucleons in a photonuclear reaction is studied with different symmetry potentials and different isospin-dependent nucleonnucleon （N N） collision cross sections. It is found that the number of emitted nucleons is sensitive to the isospin-dependent nucleon-nucleon cross section when the photon＇s energy is higher than 150 MeV, while it is insensitive to symmetry potential. The number of emitted neutrons is more sensitive to N N collision cross sections than that of protons. It is realized that the number of emitted neutrons can be used as a sensitive probe to extract the information of the isospin-dependent N N cross section at high energy photonuclear reactions.
GUO Wen-Jun, HUANG Jiang-Wei, YONG Gao-Chan, ZHANG Xiao-Ji, ZHANG ao（ 1 College of Science, University of Shanghai for Science and Technology, Shanghai 200093 2Department of Physics and Astronomy, Texas A＆M University-Commerce, Commerce, TX 75429, USA 3Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000）
ISSN:0256-307X
1741-3540
DOI:10.1088/0256-307X/31/10/102501