Higher order fluctuations and correlations of conserved charges from lattice QCD - INSPIRE

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Higher order fluctuations and correlations of conserved charges from lattice QCD

Szabolcs Borsanyi
(
- Wuppertal U.
)
,
Zoltan Fodor
(
- Wuppertal U. and
- Eotvos U. and
- IAS, Julich
)
,
Jana N. Guenther
(
- Wuppertal U. and
- Regensburg U.
)
,
Sandor K. Katz
(
- Regensburg U.
)
,
Kalman K. Szabo
(
- Wuppertal U. and
- IAS, Julich
)

May 11, 2018

23 pages

Published in:

JHEP 10 (2018) 205

Published: Oct 31, 2018

e-Print:

1805.04445 [hep-lat]

DOI:

10.1007/JHEP10(2018)205

View in:

reference search222 citations

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Abstract: (Springer)

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.

Note:

22 pages, 12 figures

Lattice QCD
Phase Diagram of QCD
Quark-Gluon Plasma
charge: conservation law
potential: chemical
quark: flavor: 4
fluctuation
higher-order
correlation
quantum chromodynamics

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)
,
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(
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)
,
S.D. Katz
(
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)
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)
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)
,
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)
,
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)
,
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)
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