Effects of In-Medium Nucleon-Nucleon Cross Section and Nuclear Density Distribution on the Proton-Nucleus Total Reaction Cross Section  

作　　者：HAN Rui CHEN Zhi-Qiang R.Wada ZHANG Su-Ya-La-Tu LIU Xing-Quan LIN Wei-Ping JIN Zeng-Xue HU Bi-Tao 韩瑞;陈志强;R.Wada;张苏雅拉吐;刘星泉;林炜平;靳增雪;胡碧涛(Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000;School of Nuclear Science and Technology,Lanzhou University,Lanzhou 730000;University of Chinese Academy of Sciences,Beijing 100049)

机构地区：[1]Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000 [2]School of Nuclear Science and Technology,Lanzhou University,Lanzhou 730000 [3]University of Chinese Academy of Sciences,Beijing 100049

出　　处：《Chinese Physics Letters》2013年第12期25-29,共5页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China(No 11075189);100 Persons Project(0910020BR0,Y010110BR0);ADS Project(Y103010ADS)of the Chinese Academy of Sciences.

摘　　要：We present the proton-total reaction cross sectionsσR by comparing the experimental data with the Glauber model calculation using four sets of nucleon-nucleon cross sections used in literature(free nucleon-nucleon cross sections(NNCS),phenomenological NNCS,Bruckner-type NNCS and Pauli NNCS)and different nuclear densities for symmetric and asymmetric nuclei.For light symmetric target nuclei,the experimentalσR data are well reproduced by the former three NNCS with the ground state density distributions of relativistic mean-field theory.On the other hand,for asymmetry heavier target nuclei,the calculations of theσR data depend significantly on the nuclear density distribution at large radius in the low energy region.The experimentalσR of these nuclei are well reproduced by the empirical 3 pF density distribution and the in-medium NNCS.The neutron surface distributions are also discussed based on the 3 pF nuclear charge distributions.

关 键 词：theory SYMMETRIC RADIUS 

分 类 号：O57[理学—粒子物理与原子核物理]