Speaker
Michael Strickland
(Kent State University)
Description
We compute the QGP suppression of $\Upsilon(1s)$, $\Upsilon(2s)$, and $\Upsilon(3s)$, $\chi_{b1}$ and $\chi_{b2}$ states in $\sqrt{s_{NN}}=2.76$ TeV Pb-Pb collisions. Using the suppression of each of these states, we estimate the inclusive $R_{AA}$ for the $\Upsilon(1s)$ and $\Upsilon(2s)$ states as a function of $N_{\rm part}$, $y$, and $p_T$ including the effect of excited state feed down. We find that our model provides a reasonable description of recently obtained CMS results for the $N_{\rm part}$-, $y$-, and $p_T$-dependence of $R_{AA}$ for both the $\Upsilon(1s)$ and $\Upsilon(2s)$. Comparing to our previous results, we find a flatter rapidity dependence, thereby reducing some of the tension between our model and ALICE forward-rapidity results for $\Upsilon(1s)$ suppression.
| On behalf of collaboration: | NONE |
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Primary author
Michael Strickland
(Kent State University)
Co-authors
Mr
Brandon Krouppa
(Kent State University)
Dr
Radoslaw Ryblewski
(Institute of Nuclear Physics PAN)
