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Title: Charm degrees of freedom in the quark gluon plasma

Journal Article · · Physical Review D
 [1];  [1];  [1]
  1. Brookhaven National Lab. (BNL), Upton, NY (United States)

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.

Research Organization:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP)
Grant/Contract Number:
SC00112704; SC0012704
OSTI ID:
1254816
Alternate ID(s):
OSTI ID: 1234305
Report Number(s):
BNL-112229-2016-JA; PRVDAQ; KB0301020
Journal Information:
Physical Review D, Vol. 93, Issue 1; ISSN 2470-0010
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 25 works
Citation information provided by
Web of Science

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Cited By (9)

The phase structure of QCD journal August 2017
Effects of the QCD equation of state and lepton asymmetry on primordial gravitational waves journal May 2019
Cosmic QCD Epoch at Nonvanishing Lepton Asymmetry journal November 2018
Heavy-flavor production and medium properties in high-energy nuclear collisions --What next? journal May 2017
Heavy-flavor production and medium properties in high-energy nuclear collisions - What next? text January 2017
Symmetries of spatial meson correlators in high temperature QCD text January 2019
Heavy-flavor production and medium properties in high-energy nuclear collisions - What next? text January 2017
Heavy-flavor production and medium properties in high-energy nuclear collisions - What next? text January 2016
Cosmic QCD Epoch at Nonvanishing Lepton Asymmetry text January 2018

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