Recent Results on Strangeness Production from STAR

作者：Ashraf, Muhammad Usman^*

来源：Nuclear Physics A, 2021, 1005: 121815.

DOI：10.1016/j.nuclphysa.2020.121815

• strangeness
• quark-gluon plasma
• heavy-ion collisions
• fixed target
• AGS

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 experiments. The physics implications for collision dynamics are discussed.

• 单位
  清华大学