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Upsilon measurements in Au plus Au collisions at root S-NN=200 GeV with the STAR experiment

Author
Adamczyk L. AGH University of Science and Technology, Poland
Lednický Richard, promovaný fyzik DrSc. dr. h. c. Institute of physics of the ASCR, JINR Dubna
et al.  different institutions

Year
2019

Scientific journal
NUCLEAR PHYSICS A 982 723-726

Web


Abstract
We present the latest measurements of Upsilon production in Au+Au collisions at root S-NN = 200 GeV via both di-muon and di-electron decay channels by the STAR experiment at RHIC. With the addition of the 2016 data set to those taken in 2011 and 2014, the precision of Upsilon measurements is significantly improved compared to previous preliminary results, especially for the excited Upsilon states. The nuclear modification factors for the ground and excited Upsilon states are shown as a functions of transverse momentum or centrality, and are compared to results from the LHC as well as to theoretical calculations.

Cite article as:
L. Adamczyk, R. Lednický, . et al., "Upsilon measurements in Au plus Au collisions at root S-NN=200 GeV with the STAR experiment ", NUCLEAR PHYSICS A 982 723-726 (2019)