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Title: Unscreened forces in the quark-gluon plasma?

Journal Article · · Physical Review. D.
 [1];  [2];  [3];  [4];  [4];  [3];  [5]
  1. Michigan State Univ., East Lansing, MI (United States)
  2. Univ. of Bern (Switzerland)
  3. University of Stavanger (Norway)
  4. Brookhaven National Laboratory (BNL), Upton, NY (United States)
  5. Humboldt Univ. of 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:
USDOE Office of Science (SC), Nuclear Physics (NP); USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities (SUF)
Contributing Organization:
HotQCD Collaboration
Grant/Contract Number:
SC0012704; AC02-05CH11231; AC02- 05CH11231
OSTI ID:
2335410
Alternate ID(s):
OSTI ID: 2336588
Report Number(s):
BNL-225482-2024-JAAM; TRN: US2410303
Journal Information:
Physical Review. D., Vol. 109, Issue 7; ISSN 2470-0010
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
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