期刊论文、会议论文

Ashraf, Muhammad Usman

英文

Nuclear Physics A

0375-9474

2021

1005

121815

28th International Conference on Ultrarelativistic Nucleus-Nucleus Collisions (Quark Matter)

NOV 04-09, 2019

Wuhan, PEOPLES R CHINA

[Ashraf, Muhammad Usman] Cent China Normal Univ, Key Lab Quark & Lepton Phys MOE, Wuhan 430079, Peoples R China.^[Ashraf, Muhammad Usman] Cent China Normal Univ, Inst Particle Phys, Wuhan 430079, Peoples R China.^[Ashraf, Muhammad Usman;STAR Collaboration] Tsinghua Univ, Dept Engn Phys, Beijing 100084, Peoples R China.

RADARWEG 29, 1043 NX AMSTERDAM, NETHERLANDS

ELSEVIER

10.1016/j.nuclphysa.2020.121815

National Key Research and Development Program of China [2018YFE0205201]; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [11828501, 11575069, 11890711, 11861131009]

本校为第一且通讯机构

We report recent results of strangeness production in Au+Au collisions at root s(NN) = 54.4 GeV and Al+Au fixed-target collisions at root s(NN) = 4.9 GeV from the STAR experiment at RHIC. The collision-energy dependence of strange hadron yields is presented. The p(T) dependance of nuclear modification factor (R-CP) and baryon to meson ratio ((Lambda) over bar /K-S(0) are measured to study the recombination and parton energy loss mechanisms. The STAR fixed-target data are compared to the previous published data from different AGS exper...