Proton-proton momentum correlation function as a probe of the high momentum tail of the nucleon-momentum distribution

作     者：Gao-Feng Wei Xi-Guang Cao Qi-Jun Zhi Xin-Wei Cao Zheng-Wen Long 

作者机构：School of Physics and Electronic Science Guizhou Normal University Guiyang 550025 China Guizhou Provincial Key Laboratory of Radio Astronomy and Data Processing Guizhou Normal University Guiyang 550025 China Shanghai Advanced Research Institute Chinese Academy of Sciences Shanghai 201210 China Shanghai Synchrotron Radiation Facility Zhangjiang Laboratory Shanghai 201210 China Shanghai Institute of Applied Physics Chinese Academy of Sciences Shanghai 201800 China School of Mechanical and Material Engineering Xi'an University of Arts and Sciences Xi'an 710065 China College of Physics Guizhou University Guiyang 550025 China 

出 版 物：《Physical Review C》 (物理学评论C辑：核物理学)

年 卷 期：2020年第101卷第1期

页      面：014613-014613页

核心收录：

学科分类：07[理学] 070202[理学-粒子物理与原子核物理] 0702[理学-物理学] 

基　　金：Xi'an Science and Technology Planning, (CXY1531WL35) National Natural Science Foundation of China, NSFC, (11405128, 11565010, 11965008, U1731218, U1832129) National Natural Science Foundation of China, NSFC Guizhou Normal University, GZNU Guizhou Science and Technology Department innovation talent team, ((2015)4015) 

主　　题：Low & intermediate energy heavy-ion reactions Nucleon distribution 

摘      要：Within an improved transport model, we examine effects of the high momentum tail of the nucleon momentum distribution induced by short-range correlations on the proton-proton momentum correlation function in Au197+Au197 collisions at 400 MeV/nucleon. It is found that the proton-proton momentum correlation function from preequilibrium emissions responds sensitively to the presence as well as fraction of nucleons in the high momentum tail of the nucleon momentum distribution but is almost robustly insensitive to other factors, including the symmetry energy and the uncertainty of cutoff value of nucleon effective high momentum. In terms of the sensitivity and clearness, we propose that the proton-proton momentum correlation function from preequilibrium emissions can be as an effective probe of the high momentum tail of the nucleon momentum distribution.