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Transport coefficients from in medium quarkonium dynamics

<!--HTML-->Three are the mechanisms that influence quarkonium suppression in a medium: screening, thermal decay, and recombination. In recent years, a framework that can treat them consistently at the same time has been put forward, the open quantum system approach. In this talk, we will discu...

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Autor principal: Escobedo Espinosa, Miguel Ángel
Lenguaje:eng
Publicado: 2020
Materias:
Acceso en línea:http://cds.cern.ch/record/2721551
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author Escobedo Espinosa, Miguel Ángel
author_facet Escobedo Espinosa, Miguel Ángel
author_sort Escobedo Espinosa, Miguel Ángel
collection CERN
description <!--HTML-->Three are the mechanisms that influence quarkonium suppression in a medium: screening, thermal decay, and recombination. In recent years, a framework that can treat them consistently at the same time has been put forward, the open quantum system approach. In this talk, we will discuss how the combination of open quantum system and Effective Field Theory techniques are useful to understand quarkonium evolution in a medium in the regime in which the temperature is smaller than the inverse of the typical radius. In this case, the interaction parameter depends only on two transport coefficients $\kappa$ and $\gamma$, where $\kappa$ is the heavy quark diffusion coefficient. Combining these results with recent lattice QCD evaluations of the mass shift and thermal decay width of quarkonium we are able to obtain a non-perturbative determination of $\kappa$ compatible with state-of-the-art results. This talk is based on the recent paper Phys.Rev. D100 (2019) no.5, 054025.
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spelling cern-27215512022-11-02T22:22:33Zhttp://cds.cern.ch/record/2721551engEscobedo Espinosa, Miguel ÁngelTransport coefficients from in medium quarkonium dynamics10th International Conference on Hard and Electromagnetic Probes of High-Energy Nuclear CollisionsConferences<!--HTML-->Three are the mechanisms that influence quarkonium suppression in a medium: screening, thermal decay, and recombination. In recent years, a framework that can treat them consistently at the same time has been put forward, the open quantum system approach. In this talk, we will discuss how the combination of open quantum system and Effective Field Theory techniques are useful to understand quarkonium evolution in a medium in the regime in which the temperature is smaller than the inverse of the typical radius. In this case, the interaction parameter depends only on two transport coefficients $\kappa$ and $\gamma$, where $\kappa$ is the heavy quark diffusion coefficient. Combining these results with recent lattice QCD evaluations of the mass shift and thermal decay width of quarkonium we are able to obtain a non-perturbative determination of $\kappa$ compatible with state-of-the-art results. This talk is based on the recent paper Phys.Rev. D100 (2019) no.5, 054025.oai:cds.cern.ch:27215512020
spellingShingle Conferences
Escobedo Espinosa, Miguel Ángel
Transport coefficients from in medium quarkonium dynamics
title Transport coefficients from in medium quarkonium dynamics
title_full Transport coefficients from in medium quarkonium dynamics
title_fullStr Transport coefficients from in medium quarkonium dynamics
title_full_unstemmed Transport coefficients from in medium quarkonium dynamics
title_short Transport coefficients from in medium quarkonium dynamics
title_sort transport coefficients from in medium quarkonium dynamics
topic Conferences
url http://cds.cern.ch/record/2721551
work_keys_str_mv AT escobedoespinosamiguelangel transportcoefficientsfrominmediumquarkoniumdynamics
AT escobedoespinosamiguelangel 10thinternationalconferenceonhardandelectromagneticprobesofhighenergynuclearcollisions