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Title: Quarkonium transport in weakly and strongly coupled plasmas

Journal Article · · EPJ Web of Conferences (Online)
 [1];  [2];  [3]
  1. European Organization for Nuclear Research (CERN), Geneva (Switzerland); Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States); UW
  2. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
  3. Univ. of Washington, Seattle, WA (United States)
+ Show Author Affiliations

We report on progress in the nonperturbative understanding of quarkonium dynamics inside a thermal plasma. The time evolution of small-size quarkonium is governed by two-point correlation functions of chromoelectric fields dressed with an adjoint Wilson line, known in this context as generalized gluon distributions (GGDs). The GGDs have been calculated in both weakly and strongly coupled plasmas by using perturbative and holographic methods. Strikingly, the results of our calculations for a strongly coupled plasma indicate that the quarkonium dissociation and recombination rates vanish in the transport descriptions that assume quarkonium undergoes Markovian dynamics. However, this does not imply that the dynamics is trivial. As a starting point to explore the phenomenological consequences of the result at strong coupling, we show a calculation of the Y(1S) formation probability in time-dependent perturbation theory. This is a first step towards the development of a transport formalism that includes non-Markovian effects, which, depending on how close the as of yet undetermined nonperturbative QCD result of the GGDs is to the strongly coupled N = 4 SYM result, could very well dominate over the Markovian ones in quark-gluon plasma produced at RHIC and the LHC.

Research Organization:
Univ. of Washington, Seattle, WA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP)
Grant/Contract Number:
SC0020970; SC0011090
OSTI ID:
2395414
Report Number(s):
IQuS@UW-21-067; SC0011090
Journal Information:
EPJ Web of Conferences (Online), Journal Name: EPJ Web of Conferences (Online) Vol. 296; ISSN 2100-014X
Publisher:
EDP SciencesCopyright Statement
Country of Publication:
United States
Language:
English

References (9)

Coupled Boltzmann transport equations of heavy quarks and quarkonia in quark-gluon plasma journal January 2021
Non-Abelian electric field correlator at NLO for dark matter relic abundance and quarkonium transport journal January 2022
Chromoelectric field correlator for quarkonium transport in the strongly coupled $$ \mathcal{N} $$ = 4 Yang-Mills plasma from AdS/CFT journal June 2023
Potential NRQCD: an effective theory for heavy quarkonium journal January 2000
Real time quarkonium transport coefficients in open quantum systems from Euclidean QCD journal September 2023
Quarkonium suppression in heavy-ion collisions: An open quantum system approach journal August 2017
Quarkonium in-medium transport equation derived from first principles journal May 2019
Gauge Invariance of Non-Abelian Field Strength Correlators: The Axial Gauge Puzzle journal February 2023
Open quantum systems for quarkonia journal July 2021

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Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
Hadronic collisions
Heavy-ions
Plasma
Quantum chromodynamics
Transport