Bottomonium suppression and elliptic flow in heavy-ion collisions
Abstract
In this proceedings contribution I review recent progress concerning the suppression of bottomonium production in the quark-gluon plasma. Making use of open quantum system methods applied to potential non-relativistic quantum chromodynamics one can show that the dynamics of heavy-quarkonium bound states satisfying the scale hierarchy 1/a_0 >> pi T ~ m_D >> E obey a Lindblad equation whose solution provides the quantum evolution of the heavy-quarkonium reduced density matrix. To solve the resulting Lindblad equation we use a quantum trajectories algorithm which allows one to include all possible angular momentum states of the quark-antiquark probe in a scalable manner. We solve the Lindblad equation using a tuned 3+1D dissipative hydrodynamics code for the background temperature evolution. We then consider a large number of Monte-Carlo sampled bottomonium trajectories embedded in this background. This allows us to extract the centrality- and p_T-dependence of the nuclear suppression factor R_AA[Upsilon] and elliptic flow v_2[Upsilon]. We find good agreement between our model predictions and available sqrt(s_NN) = 5.02 TeV Pb-Pb collision experimental data from the ALICE, ATLAS, and CMS collaborations.
Keywords
Cite
@article{arxiv.2112.11492,
title = {Bottomonium suppression and elliptic flow in heavy-ion collisions},
author = {Michael Strickland},
journal= {arXiv preprint arXiv:2112.11492},
year = {2022}
}
Comments
6 pages, 4 figures; Proceedings contribution for 19th International Conference on Hadron Spectroscopy and Structure, Mexico City, July 26-31, 2021; v2 - update references