Journal Article

FZJ-2019-01565

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Higher order fluctuations and correlations of conserved charges from lattice QCD

Borsanyi, S. (Corresponding author) ; Fodor, Z. ; Guenther, J. N. ; Katz, S. K. ; Pasztor, A. ; Portillo, I. ; Ratti, C. ; Szabo, K.FZJ*

2018
SISSA [Trieste]

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Please use a persistent id in citations: http://hdl.handle.net/2128/21870  doi:10.1007/JHEP10(2018)205

Abstract: We calculate several diagonal and non-diagonal fluctuations of conserved charges in a system of 2+1+1 quark flavors with physical masses, on a lattice with size $48^3 × 12$. Higher order fluctuations at $μ_B = 0$ are obtained as derivatives of the lower order ones, simulated at imaginary chemical potential. From these correlations and fluctuations we construct ratios of net-baryon number cumulants as functions of temperature and chemical potential, which satisfy the experimental conditions of strangeness neutrality and proton/baryon ratio. Our results qualitatively explain the behavior of the measured cumulant ratios by the STAR collaboration.

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Contributing Institute(s):

1. John von Neumann - Institut für Computing (NIC)
2. Jülich Supercomputing Center (JSC)

Research Program(s):

1. 511 - Computational Science and Mathematical Methods (POF3-511) (POF3-511)
2. The QCD phase diagram and equation of state (hwu08_20180501) (hwu08_20180501)

Appears in the scientific report 2019

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Database coverage:
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