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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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
Online AccessGet full text
ISSN0256-307X
1741-3540
DOI10.1088/0256-307X/31/10/102501

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Abstract 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.
AbstractList 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.
Author 郭文军 黄江伟 雍高产 张霄吉 张傲
AuthorAffiliation College of Science, University of Shanghai for Science and Technology, Shanghai 200093 Department of Physics and Astronomy, Texas A＆M University-Commerce, Commerce, TX 75429, USA Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000
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Cites_doi 10.1103/PhysRevC.69.064611
10.1103/PhysRevLett.82.3767
10.1103/PhysRevLett.78.1644
10.1103/PhysRevC.86.044623
10.1103/PhysRevLett.86.975
10.1103/PhysRevC.66.045801
10.1103/PhysRevLett.76.4492
10.1103/PhysRevC.63.044006
10.1103/PhysRevC.53.297
10.1103/PhysRevLett.22.1314
10.1103/PhysRevC.75.034602
10.1103/PhysRevC.58.2283
10.1103/PhysRevLett.85.4221
10.1103/PhysRevC.70.034610
10.1103/PhysRevC.57.3447
10.1103/PhysRevC.37.2451
10.1103/PhysRevC.5.846
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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）
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SubjectTerms 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
Title Nucleon Emission Number as a Probe of Isospin-Dependent N-N Cross Section in Photonuclear Reactions
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