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Effects of impact parameter filters on observables in heavy-ion collisions at INDRA energies

文献类型：期刊论文

作者Li, Pengcheng1,2; Wang, Yongjia2; Li, Qingfeng2,3; Wang, Jiansong2,3; Zhang, Hongfei1,4,5
刊名JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS
出版日期2020-02-01
卷号47期号:3页码:15
关键词heavy ion collisions collective flow nuclear stopping power impact parameter
ISSN号0954-3899
DOI10.1088/1361-6471/ab6627
通讯作者Wang, Yongjia(wangyongjia@zjhu.edu.cn) ; Li, Qingfeng(liqf@zjhu.edu.cn)
英文摘要The collision centrality (or the impact parameter b) in heavy-ion experiments is inferred from final state observables, however, usually b is an input to theoretical calculations. The effects of different methods used for the centrality selection (i.e. total charged multiplicity M-ch, total transverse kinetic energy of light charged particles E12, and the ratio of transverse-to-longitudinal kinetic energy ERAT) on the nuclear stopping and the collective flow are studied in 54129Xe+ 50120Sn collisions at INDRA energies (E. 150 MeV beam /nucleon). The study is conducted within the framework of the ultra-relativistic quantum molecular dynamics (UrQMD) model. It is found that the nuclear stopping power RE obtained from events binning with ERAT is larger than the experimental data as well as the results obtained using Mch and E12. At Ebeam = 50 MeV/nucleon, the elliptic flow from events selected with different methods spreads widely, especially for more central collisions. The elliptic flow from events sorted by ERAT is weakly dependent on the collision centrality. The difference in elliptic flow at mid-rapidity among different centrality filters steadily decreases with increasing beam energy and impact parameter. At 150 MeV/nucleon, the differences in directed and elliptic flows arising from different centrality filters vanish.
WOS关键词QUANTUM MOLECULAR-DYNAMICS ; AR-36+AU-197 COLLISIONS ; COLLECTIVE FLOW ; ELLIPTIC FLOW ; EQUATION ; E/A ; AU ; STATE ; MULTIFRAGMENTATION
资助项目National Natural Science Foundation of China[11947410] ; National Natural Science Foundation of China[11875125] ; National Natural Science Foundation of China[11847315] ; National Natural Science Foundation of China[11675066] ; Zhejiang Provincial Natural Science Foundation of China[LY18A050002] ; Zhejiang Provincial Natural Science Foundation of China[LY19A050001] ; 'Ten Thousand Talent Program' of Zhejiang province
WOS研究方向Physics
语种英语
WOS记录号WOS:000514928600001
出版者IOP PUBLISHING LTD
资助机构National Natural Science Foundation of China ; Zhejiang Provincial Natural Science Foundation of China ; 'Ten Thousand Talent Program' of Zhejiang province
源URL[http://119.78.100.186/handle/113462/141049]  
专题中国科学院近代物理研究所
通讯作者Wang, Yongjia; Li, Qingfeng
作者单位1.Lanzhou Univ, Sch Nucl Sci & Technol, Lanzhou 730000, Peoples R China
2.Huzhou Univ, Sch Sci, Huzhou 313000, Peoples R China
3.Chinese Acad Sci, Inst Modern Phys, Lanzhou 70000, Peoples R China
4.Lanzhou Univ, Joint Dept Nucl Phys, Lanzhou 730000, Peoples R China
5.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
推荐引用方式
GB/T 7714		 Li, Pengcheng,Wang, Yongjia,Li, Qingfeng,et al. Effects of impact parameter filters on observables in heavy-ion collisions at INDRA energies[J]. JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS,2020,47(3):15.
APA Li, Pengcheng,Wang, Yongjia,Li, Qingfeng,Wang, Jiansong,&Zhang, Hongfei.(2020).Effects of impact parameter filters on observables in heavy-ion collisions at INDRA energies.JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS,47(3),15.
MLA Li, Pengcheng,et al."Effects of impact parameter filters on observables in heavy-ion collisions at INDRA energies".JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS 47.3(2020):15.

入库方式： OAI收割

来源：近代物理研究所

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