Effect of internal magnetic field on collective flow in heavy ion collisions at intermediate energies
Effect of internal magnetic field on collective flow in heavy ion collisions at intermediate energies
复制标题
内部磁场对中能重离子碰撞集体流的影响
DOI:
10.1103/physrevc.99.064607
复制
发表时间:
2019-05
影响因子:
3.1
通讯作者:
Wang Fuqiang
中科院分区:
文献类型:
--
作者:
Sun Yuliang;Wang Yongjia;Li Qingfeng;Wang Fuqiang
The properties of nuclear matter under extreme conditions of high temperature, density and isospin-asymmetry have attracted wide attentions in recent years. At present, heavy ion reactions in combination with corresponding model simulations are one of the most important ways to investigate this subject. It is known that a strong magnetic field can be created in heavy ion collisions. However, its effect on the motion of charged particles is usually neglected in previous transport model simulations. In this work, within the Ultra-relativistic Quantum Molecular Dynamics (UrQMD) model, the temporal evolution and spatial distribution of the internal magnetic field are calculated. The magnetic field strength is found to reach about $eB\approx470$ MeV$^{2}$ ($B\approx8\times10^{16}$ G) for Au+Au collisions at $E_{\text{lab}}$=1 GeV/nucleon with impact parameter of 7 fm. The magnetic field in Cu+Au collisions exhibits somewhat different spatial distribution from that in Au+Au collisions. The magnetic field is found to affect the directed flow of pions at forward and backward rapidities to some extent, dependent of the impact parameter and beam energy while the effect on the elliptic flow is small. This suggests that, because $\pi$ mesons produced in heavy ion collisions at intermediate energies are considered as a sensitive probe for the nuclear symmetry energy, it is necessary to consider the effect of the internal magnetic field.
登录
查看更多内容
影响因子:
8.6
作者:
Xu Hao-jie;Wang Xiaobao;Li Hanlin;Zhao Jie;Lin Zi-Wei
通讯作者:
Lin Zi-Wei
DOI:
10.1016/s0375-9474(02)01018-7
发表时间:
2002-06
期刊:
Nuclear Physics
影响因子:
--
作者:
Bao-An Li
通讯作者:
Bao-An Li
影响因子:
3.1
作者:
V. Toneev;V. Voronyuk;E. Kolomeitsev;W. Cassing
通讯作者:
V. Toneev;V. Voronyuk;E. Kolomeitsev;W. Cassing
影响因子:
3.1
作者:
Ono Akira;Xu Jun;Colonna Maria;Danielewicz Pawel;Ko Che Ming;Tsang Manyee Betty;Wang Yong-Jia;Wolter Hermann;Zhang Ying-Xun;Chen Lie-Wen;Cozma Dan;Elfner Hannah;Feng Zhao-Qing;Ikeno Natsumi;Li Bao-An;Mallik Swagata;Nara Yasushi;Ogawa Tatsuhiko;Ohnishi Aki
通讯作者:
Ohnishi Aki
DOI:
10.1007/s11433-017-9148-0
发表时间:
2018-03
期刊:
Science China Physics,Mechanics & Astronomy
影响因子:
--
作者:
Du YuShan;Wang YongJia;Li QingFeng;Liu Ling
通讯作者:
Liu Ling