Title: Unscreened forces in the quark-gluon plasma?

Journal Article · · Physical Review D
 [1];  [2];  [3];  [4];  [4];  [3];  [5]
  1. Michigan State University, East Lansing, MI (United States)
  2. University of Bern (Switzerland)
  3. University of Stavanger (Norway)
  4. Brookhaven National Laboratory (BNL), Upton, NY (United States)
  5. Humboldt-Universität zu Berlin (Germany)
+ Show Author Affiliations

We study the correlator of temporal Wilson lines at nonzero temperature in 2+1 flavor lattice QCD with the aim to define the heavy quark-antiquark potential at nonzero temperature. For temperatures 153 MeV ≤ 𝑇 ≤ 352 MeV the spectral representation of this correlator is consistent with a broadened peak in the spectral function, position, or width of which then defines the real or imaginary parts of the heavy quark-antiquark potential at nonzero temperature, respectively. We find that the potential’s real part is not screened contrary to the widely held expectations. We comment on how this fact may modify the picture of quarkonium melting in the quark-gluon plasma.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). National Energy Research Scientific Computing Center (NERSC)
Sponsoring Organization:
Research Council of Norway; U.S. National Science Foundation (NSF); USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities (SUF); USDOE Office of Science (SC), Nuclear Physics (NP)
Contributing Organization:
HotQCD Collaboration
Grant/Contract Number:
AC02-05CH11231; SC0012704; SC0023547
OSTI ID:
2335410
Report Number(s):
BNL--225482-2024-JAAM
Journal Information:
Physical Review D, Journal Name: Physical Review D Journal Issue: 7 Vol. 109; ISSN 2470-0010; ISSN 2470-0029
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

References (35)

On-shell improved lattice gauge theories journal September 1985
On-shell improved lattice gauge theories journal March 1985
Erratum: Properties and uses of the Wilson flow in lattice QCD journal March 2014
Properties and uses of the Wilson flow in lattice QCD journal August 2010
Quarkonium at finite temperature: towards realistic phenomenology from first principles journal December 2015
Computation of the action for on-shell improved lattice gauge theories at weak coupling journal August 1985
J/ψ suppression by quark-gluon plasma formation journal October 1986
The RHMC algorithm for 2 flavours of dynamical staggered fermions journal March 2004
Heavy flavors under extreme conditions in high energy nuclear collisions journal September 2020
Color screening in quantum chromodynamics journal January 2021
Real-time static potential in hot QCD journal March 2007
T -matrix approach to quark-gluon plasma journal March 2018
Determination of the QCD coupling from the static energy and the free energy journal December 2019
Nonperturbative potential for the study of quarkonia in QGP journal February 2020
Erratum: Determination of αs from the QCD static energy: An update [Phys. Rev. D 90 , 074038 (2014)] journal June 2020
Static quark-antiquark interactions at nonzero temperature from lattice QCD journal March 2022
Static energy in ( 2+1+1 )-flavor lattice QCD: Scale setting and charm effects journal April 2023
Flavor symmetry and the static potential with hypercubic blocking journal July 2001
Light hadrons with improved staggered quarks: Approaching the continuum limit journal November 2004
Highly improved staggered quarks on the lattice with applications to charm physics journal March 2007
QCD equation of state with almost physical quark masses journal January 2008
Static quark-antiquark pairs at finite temperature journal July 2008
Chiral and deconfinement aspects of the QCD transition journal March 2012
Hard thermal loop benchmark for the extraction of the nonperturbative Q Q ¯ potential journal June 2013
Determination of α s from the QCD static energy: An update journal October 2014
Equation of state in ( 2 + 1 )-flavor QCD journal November 2014
Equation of state in 2 + 1 flavor QCD at high temperatures journal January 2018
Color screening in ( 2 + 1 )-flavor QCD journal September 2018
Complex Heavy-Quark Potential at Finite Temperature from Lattice QCD journal April 2012
Bayesian Approach to Spectral Function Reconstruction for Euclidean Quantum Field Theories journal October 2013
Static Quark-Antiquark Potential in the Quark-Gluon Plasma from Lattice QCD journal February 2015
Symanzik improvement of the gradient flow in lattice gauge theories journal January 2016
Heavy Ion Collisions: The Big Picture and the Big Questions journal October 2018
Results for light pseudoscalar mesons conference June 2011
Static potential at non-zero temperatures from fine lattices
  • Hoying, Daniel; Bazavov, Alexei; Bala, Dibyendu
  • Proceedings of The 38th International Symposium on Lattice Field Theory — PoS(LATTICE2021) https://doi.org/10.22323/1.396.0178
conference May 2022

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
Color confinement
Heavy quark effective theory
Lattice QCD
Lattice field theory
Quark-gluon plasma
color confinement
heavy quark effective theory
lattice QCD
lattice field theory
quark-gluon plasma