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Title: Color screening in ( 2 + 1 )-flavor QCD

Abstract

Here, we study correlation functions of spatially separated static quark-antiquark pairs in (2+1)-flavor QCD in order to investigate onset and nature of color screening at high temperatures. We perform lattice calculations in a wide temperature range, 140 ≤ T ≤ 5814 MeV, using the highly improved staggered quark action and several lattice spacings to control discretization effects. By comparing at high temperatures our lattice results to weak-coupling calculations, as well as to the zero temperature result for the energy of a static quark-antiquark pair, we observe that color screening sets in at rT ≈ 0.3. Furthermore, we also observe that in the range 0.3 ≲ rT ≲ 0.6 weak-coupling calculations in the framework of suitable effective field theories provide an adequate picture of color screening.

Authors:
 [1];  [2];  [3];  [2];  [4]
  1. Michigan State Univ., East Lansing, MI (United States)
  2. Technische Univ. Munchen, Garching (Germany)
  3. Brookhaven National Lab. (BNL), Upton, NY (United States)
  4. Technische Univ. Munchen, Garching (Germany); Michigan State Univ., East Lansing, MI (United States)
Publication Date:
Research Org.:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
Contributing Org.:
TUMQCD Collaboration
OSTI Identifier:
1471274
Alternate Identifier(s):
OSTI ID: 1479269
Report Number(s):
BNL-209329-2018-JAAM
Journal ID: ISSN 2470-0010; PRVDAQ
Grant/Contract Number:  
SC0012704; AC02-05CH11231
Resource Type:
Published Article
Journal Name:
Physical Review D
Additional Journal Information:
Journal Volume: 98; Journal Issue: 5; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS

Citation Formats

Bazavov, A., Brambilla, N., Petreczky, Peter, Vairo, A., and Weber, Johannes H. Color screening in ( 2+1 )-flavor QCD. United States: N. p., 2018. Web. doi:10.1103/PhysRevD.98.054511.
Bazavov, A., Brambilla, N., Petreczky, Peter, Vairo, A., & Weber, Johannes H. Color screening in ( 2+1 )-flavor QCD. United States. doi:10.1103/PhysRevD.98.054511.
Bazavov, A., Brambilla, N., Petreczky, Peter, Vairo, A., and Weber, Johannes H. Tue . "Color screening in ( 2+1 )-flavor QCD". United States. doi:10.1103/PhysRevD.98.054511.
@article{osti_1471274,
title = {Color screening in ( 2+1 )-flavor QCD},
author = {Bazavov, A. and Brambilla, N. and Petreczky, Peter and Vairo, A. and Weber, Johannes H.},
abstractNote = {Here, we study correlation functions of spatially separated static quark-antiquark pairs in (2+1)-flavor QCD in order to investigate onset and nature of color screening at high temperatures. We perform lattice calculations in a wide temperature range, 140 ≤ T ≤ 5814 MeV, using the highly improved staggered quark action and several lattice spacings to control discretization effects. By comparing at high temperatures our lattice results to weak-coupling calculations, as well as to the zero temperature result for the energy of a static quark-antiquark pair, we observe that color screening sets in at rT ≈ 0.3. Furthermore, we also observe that in the range 0.3 ≲ rT ≲ 0.6 weak-coupling calculations in the framework of suitable effective field theories provide an adequate picture of color screening.},
doi = {10.1103/PhysRevD.98.054511},
journal = {Physical Review D},
number = 5,
volume = 98,
place = {United States},
year = {2018},
month = {9}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1103/PhysRevD.98.054511

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