Abnormal flow of α particles in heavy-ion collisions at intermediate energies

被引：1

作者：

Qu, G. ^{[1
]}

Huang, Y. ^{[1
]}

Peng, D. ^{[2
]}

Xu, Z. ^{[1
]}

Lin, W. ^{[1
]}

Zheng, H. ^{[3
]}

Tian, G. ^{[4
]}

Han, R. ^{[4
]}

Ma, C. ^{[2
]}

Huang, M. ^{[6
]}

Ren, P. ^{[1
]}

Han, J. ^{[1
]}

Yang, Z. ^{[7
]}

Liu, X. ^{[1
]}

Wada, R. ^{[2
,5
]}

机构：

[1] Sichuan Univ, Inst Nucl Sci & Technol, Minist Educ, Key Lab Radiat Phys & Technol, Chengdu 610064, Peoples R China

[2] Henan Normal Univ, Sch Phys, Xinxiang 453007, Henan, Peoples R China

[3] Shaanxi Normal Univ, Sch Phys & Informat Technol, Xian 710119, Peoples R China

[4] Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China

[5] Texas A&M Univ, Cyclotron Inst, College Stn, TX 77843 USA

[6] Inner Mongolia Univ Nationalities, Coll Phys & Elect Informat, Tongliao 028000, Peoples R China

[7] Nucl Power Inst China, Sci & Technol Reactor Syst Design Technol Lab, Chengdu 610213, Peoples R China

来源：

PHYSICAL REVIEW C | 2021年 / 103卷 / 04期

基金：

中国国家自然科学基金;

关键词：

MOLECULAR-DYNAMICS; ISOSPIN DEPENDENCE; COLLECTIVE-FLOW; FRAGMENT FLOW; VELOCITY CORRELATIONS; TRANSVERSE FLOW; PROTON EMISSION; MASS FRAGMENTS; EQUATION; AU+AU;

D O I：

10.1103/PhysRevC.103.044607

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

The experimentally observed abnormal alpha flow behavior from heavy-ion collisions at intermediate energies is investigated using the events of Ca-40 + Ca-40 at 35 MeV/nucleon simulated with an improved antisymmetrized molecular dynamics model with specific consideration of the Fermi motion in the nucleon-nucleon collision process. Its possible origins in the processes from the fragment formation to the experimental flow extraction, i.e., dynamical process, sequential decay, experimental detection, and data analysis, are closely examined. It is found that the observed abnormal alpha flow behavior originates from the reconstruction of reaction planes in the flow extraction. How the abnormal alpha flow behavior is generated from the reaction plane reconstruction procedure is discussed.

引用

页数：12

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