Directed flow of Λ, , K ±, and mesons from Beam Energy Scan Au+Au collisions using the STAR experiment

16th International Conference on Strangeness in Quark Matter

Singha, Subhash^1

Department of Physics, Kent State University, OH

44242, United States^1

关键词: Au+Au collisions;    Beam energies;    Directed flow;    Mid-rapidity;    Phi meson;    STAR experiment;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/779/1/012066/pdf
DOI  :  10.1088/1742-6596/779/1/012066

来源: IOP

【 摘 要 】

We report the results of v1and dv1/dy near mid-rapidity for Λ, Λ, K±, and φ in Au+Au collisions at √sNN = 7.7, 11.5, 14.5, 19.6, 27 and 39 GeV using the STAR detector at RHIC. The dv1/dy of is Λ found to be consistent with that of the proton and shows a change in sign near √sNN = 11:5 GeV. The v1slope for and φ shows a similar trend for √sNN > 14.5 GeV, while below 14.5 GeV, φ v1is consistent with zero but with a large uncertainty. The dv1/dy for net protons and net kaons is similar for √sNN > 14.5 GeV, but they deviate at lower beam energies.