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arXiv · 1611.06531

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

Robert Vertesi
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Abstract

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

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Robert Vertesi. 2016-11-20. Latest results on $\Upsilon$ production in heavy-ion collisions from the STAR experiment. https://doi.org/10.1088/1742-6596%2F832%2F1%2F012025

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