标题:The production of triton and reconstruction of H-3(Lambda) with the Heavy Flavor Tracker in Au plus Au collisions at STAR
作者:Liu, Peng; Adam, J.; Adamczyk, L.; Adams, J. R.; Adkins, J. K.; Agakishiev, G.; Aggarwal, M. M.; Ahammed, Z.; Alekseev, I; Anderson, 更多
通讯作者:Liu, P
作者机构:[Liu, Peng; Chen, J. H.; Li, W.; Liu, P.; Ma, G. L.; Ma, Y. G.; Nie, M.; Shah, N.; Shen, W. Q.; Shou, Q. Y.; Xu, Y. F.; Zhang, S.; Zhang, Z.; Zhong, C 更多
会议名称:27th International Conference on Ultrarelativistic Nucleus-Nucleus Collisions (Quark Matter)
会议日期:MAY 13-19, 2018
来源:NUCLEAR PHYSICS A
出版年:2019
卷:982
页码:811-814
DOI:10.1016/j.nuclphysa.2018.10.023
关键词:Triton; Neutron density fluctuation; Hypertriton; Mass
摘要:The transverse momentum spectra of triton with STAR Beam Energy Scan data from Au+Au collisions at root N-SS = 7.7, 11.5, 14.5, 19.6, 27, 39, 62.4, 200 GeV in the centrality classes 0 - 10%, 10 - 20%, 20 - 40% and 40 - 80% are reported. The centrality dependence of the coalescence parameter B-3 of triton and the collision energy dependence of the relative neutron density fluctuation are then calculated. The results indicate that the B-3 decreases from peripheral to central collisions and the neutron density fluctuation shows a non-monotonic collision energy dependence with a peak around collision energy of 20-30 GeV. In addition, we report details about the reconstruction method of H-3(Lambda) via H-3(Lambda) -> 4 He-3 + pi(-) and H-3(Lambda) -> + p + pi(-) using high statistics data in Au+Au collisions at root S-NN = 200 GeV collected in 2014 and 2016 with the Heavy Flavor Tracker.
收录类别:CPCI-S;SCIE
资源类型:会议论文
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