English

Latest results on $\Upsilon$ production in heavy-ion collisions from the STAR experiment

High Energy Physics - Experiment 2019-08-13 v1 Nuclear Experiment

Abstract

We report on the latest measurements of the production of Υ\Upsilon mesons in heavy-ion collisions from the STAR experiment at RHIC. New measurements of the nuclear modification factors of the Υ\Upsilon(1S+2S+3S) and Υ\Upsilon(1S) states in U+U collisions at sNN\sqrt{s_{NN}} = 193 GeV are presented as a function of the number of participants (NpartN_{part}) in the collisions. In addition, the suppression of Υ\Upsilon(1S) and Υ\Upsilon(2S+2S) is presented versus the quark-antiquark binding energy. Preliminary results on Upsilon suppression in Au+Au collisions at sNN\sqrt{s_{NN}} = 200 GeV, reconstructed via the dimuon channel, are also reported.

Keywords

Cite

@article{arxiv.1611.06531,
  title  = {Latest results on $\Upsilon$ production in heavy-ion collisions from the STAR experiment},
  author = {Robert Vertesi},
  journal= {arXiv preprint arXiv:1611.06531},
  year   = {2019}
}

Comments

Accepted in Journal of Physics: Conference Series (JPCS). Will appear in the proceedings of Hot Quarks 2016 conference