Fluctuations and Correlations of net baryon number, electric charge, and strangeness: A comparison of lattice QCD results with the hadron resonance gas model - INSPIRE

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Fluctuations and Correlations of net baryon number, electric charge, and strangeness: A comparison of lattice QCD results with the hadron resonance gas model

HotQCD

Collaboration

•

A. Bazavov
(
- Brookhaven
)

Mar, 2012

17 pages

Published in:

Phys.Rev.D 86 (2012) 034509

e-Print:

1203.0784 [hep-lat]

DOI:

10.1103/PhysRevD.86.034509

View in:

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Abstract: (arXiv)

We calculate the quadratic fluctuations of net baryon number, electric charge and strangeness as well as correlations among these conserved charges in (2+1)-flavor lattice QCD at zero chemical potential. Results are obtained using calculations with tree level improved gauge and the highly improved staggered quark (HISQ) actions with almost physical light and strange quark masses at three different values of the lattice cut-off. Our choice of parameters corresponds to a value of 160 MeV for the lightest pseudo scalar Goldstone mass and a physical value of the kaon mass. The three diagonal charge susceptibilities and the correlations among conserved charges have been extrapolated to the continuum limit in the temperature interval 150 MeV

Note:

17 pages, 18 EPS-files, 5 tables, revised version includes continuum limit extrapolations of off-diagonal susceptibilities, to appear in Phys. Rev. D

12.38.Gc
11.15.Ha
charge: electric
charge: conservation law
charge: fluctuation
baryon number: fluctuation
strangeness: fluctuation
hadron: resonance: gas
potential: chemical
quark: staggered

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