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arxiv: 1507.03951 · v1 · pith:VKJWCT3Rnew · submitted 2015-07-14 · ✦ hep-ph · nucl-ex· nucl-th

Bottomonia suppression in 2.76 TeV Pb-Pb collisions

classification ✦ hep-ph nucl-exnucl-th
keywords upsilonsuppressionmodelstatescollisionsfindpb-pbresults
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We compute the QGP suppression of Upsilon(1s), Upsilon(2s), 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_part, y, and p_T including the effect of excited state feed down. We find that our model provides a reasonable description of preliminary CMS results for the N_part-, y-, and p_T-dependence of R_AA for both the Upsilon(1s) and Upsilon(2s). Comparing to our previous model predictions, we find a flatter rapidity dependence, thereby reducing some of the tension between our model and ALICE forward-rapidity results for Upsilon(1s) suppression.

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