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Title: Charm degrees of freedom in the quark gluon plasma

Abstract

The lattice QCD studies on fluctuations and correlations of charm quantum number have established that deconfinement of charm degrees of freedom sets in around the chiral crossover temperature, Tc; i.e., charm degrees of freedom carrying fractional baryonic charge start to appear. When we reexamine those same lattice QCD data we show that, in addition to the contributions from quarklike excitations, the partial pressure of charm degrees of freedom may still contain significant contributions from open-charm-meson- and baryonlike excitations associated with integral baryonic charges for temperatures up to 1.2Tc. Finally, charm-quark quasiparticles become the dominant degrees of freedom for temperatures T>1.2Tc.

Authors:
 [1];  [1];  [1]
  1. Brookhaven National Lab. (BNL), Upton, NY (United States)
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP)
OSTI Identifier:
1254816
Alternate Identifier(s):
OSTI ID: 1234305
Report Number(s):
BNL-112229-2016-JA
Journal ID: ISSN 2470-0010; PRVDAQ; KB0301020
Grant/Contract Number:  
SC00112704; SC0012704
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review D
Additional Journal Information:
Journal Volume: 93; Journal Issue: 1; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; charm; QCD; lattice; quark; gluon; plasma; gauge; deconfinement; nuclear

Citation Formats

Mukherjee, Swagato, Petreczky, Peter, and Sharma, Sayantan. Charm degrees of freedom in the quark gluon plasma. United States: N. p., 2016. Web. doi:10.1103/PhysRevD.93.014502.
Mukherjee, Swagato, Petreczky, Peter, & Sharma, Sayantan. Charm degrees of freedom in the quark gluon plasma. United States. doi:10.1103/PhysRevD.93.014502.
Mukherjee, Swagato, Petreczky, Peter, and Sharma, Sayantan. Mon . "Charm degrees of freedom in the quark gluon plasma". United States. doi:10.1103/PhysRevD.93.014502. https://www.osti.gov/servlets/purl/1254816.
@article{osti_1254816,
title = {Charm degrees of freedom in the quark gluon plasma},
author = {Mukherjee, Swagato and Petreczky, Peter and Sharma, Sayantan},
abstractNote = {The lattice QCD studies on fluctuations and correlations of charm quantum number have established that deconfinement of charm degrees of freedom sets in around the chiral crossover temperature, Tc; i.e., charm degrees of freedom carrying fractional baryonic charge start to appear. When we reexamine those same lattice QCD data we show that, in addition to the contributions from quarklike excitations, the partial pressure of charm degrees of freedom may still contain significant contributions from open-charm-meson- and baryonlike excitations associated with integral baryonic charges for temperatures up to 1.2Tc. Finally, charm-quark quasiparticles become the dominant degrees of freedom for temperatures T>1.2Tc.},
doi = {10.1103/PhysRevD.93.014502},
journal = {Physical Review D},
number = 1,
volume = 93,
place = {United States},
year = {2016},
month = {1}
}

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Cited by: 10 works
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