| Issue |
EPJ Web Conf.
Volume 274, 2022
XVth Quark Confinement and the Hadron Spectrum Conference (ConfXV)
|
|
|---|---|---|
| Article Number | 01003 | |
| Number of page(s) | 12 | |
| Section | 1 - Plenary Presentations | |
| DOI | https://doi.org/10.1051/epjconf/202227401003 | |
| Published online | 22 December 2022 | |
https://doi.org/10.1051/epjconf/202227401003
Non-equilibrium evolution of quarkonium in medium in the open quantum system approach
Department of Physics, Kent State University, Kent, OH 44242, USA
* e-mail: mstrick6@kent.edu
Published online: 22 December 2022
In this proceedings contribution, I review recent work that aims to provide a more comprehensive and systematic understanding of bottomonium dynamics in the quark-gluon plasma using an open quantum system (OQS) approach that is applied in the framework of the potential non-relativistic QCD (pNRQCD) effective field theory and coupled to realistic hydrodynamical backgrounds that have been tuned to soft hadron observables. I review how the computation of bottomonium suppression can be reduced to solving a Gorini- Kossakowski-Sudarshan-Lindblad (GKSL) equation for the evolution of the bb̅ reduced density matrix, which includes both singlet and octet states plus medium-induced transitions between them at next-to-leading order (NLO) in the binding energy over temperature. Finally, I present comparisons of phenomenological predictions of the NLO OQS+pNRQCD approach and experimental data for bottomonium suppression and elliptic flow in LHC 5.02 TeV Pb-Pb collisions obtained using both smooth and fluctuating hydrodynamic initial conditions.
© The Authors, published by EDP Sciences, 2022
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