Revisiting Angular Momentum Conservation in Transport Simulations of Intermediate-Energy Heavy-Ion Collisions

被引：4

作者：

Liu, Rong-Jun ^{[1
,2
]}

Xu, Jun ^{[3
,4
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[3] Tongji Univ, Sch Phys Sci & Engn, Shanghai 200092, Peoples R China

[4] Chinese Acad Sci, Shanghai Adv Res Inst, Shanghai 201210, Peoples R China

来源：

UNIVERSE | 2023年 / 9卷 / 01期

基金：

中国国家自然科学基金;

关键词：

heavy-ion collisions; transport model; angular momentum conservation;

D O I：

10.3390/universe9010036

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Based on the well-calibrated IBUU transport model, we have studied the dynamical effect of incorporating rigorous angular momentum conservation in each collision of particles with homework setups. The constraint of the rigorous angular momentum conservation requires in-plane collisions and side jumps of particles after their collision. Since the option is not unique, we have compared two typical prescriptions with the original one. While the results depend quantitatively on the choice of the prescription, we found that the angular momentum conservation generally reduces local density fluctuations and thus the collision rate and may have some influence on the density evolution, the collective flow, and even the pion production in transport simulations of intermediate-energy heavy-ion collisions.

引用

页数：14

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