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:
-
- 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. https://doi.org/10.1103/PhysRevD.93.014502
Mukherjee, Swagato, Petreczky, Peter, and Sharma, Sayantan. Mon .
"Charm degrees of freedom in the quark gluon plasma". United States. https://doi.org/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 = {Mon Jan 11 00:00:00 EST 2016},
month = {Mon Jan 11 00:00:00 EST 2016}
}
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