EPJ Web Conf.
Volume 259, 2022The 19th International Conference of Strangeness in Quark Matter (SQM 2021)
|Number of page(s)||4|
|Section||Open and New (Parallel)|
|Published online||01 February 2022|
Low-pT μ+μ− pair production in Au+Au collisions at √SNN = 200 GeV at STAR
1 Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China
2 State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei 230026, China
* e-mail: email@example.com
Published online: 1 February 2022
We report the measurements of μ+μ− pair production for pT < 0.10 GeV/c in 40-80% Au+Au collisions at √SNN = 200 GeV at STAR. A significant enhancement with respect to the hadronic cocktail is observed. The pT2 and ∆ϕ distributions of the excess yields are also reported and compared with model calculations. The EPA-QED calculations can describe the data very well within uncertainties.
© The Authors, published by EDP Sciences, 2022
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