Lattice thermodynamics at finite chemical potential from analytical Continuation

Jana N. Guenther; Szabolcs Borsanyi; Zoltan Fodor; Sandor K. Katz; K. K. Szabó; Attila Pasztor; Israel Portillo; Claudia Ratti

doi:10.1088/1742-6596/1070/1/012002

Lattice thermodynamics at finite chemical potential from analytical Continuation

Jana N. Guenther, Szabolcs Borsanyi, Zoltan Fodor, Sandor K. Katz, K. K. Szabó, Attila Pasztor, Israel Portillo, Claudia Ratti

Research output: Contribution to journal › Conference article › peer-review

10 Scopus citations

Abstract

An efficient way to study the QCD phase diagram at small finite density is to extrapolate thermodynamical observables from imaginary chemical potential. We present results for fluctuations of baryon number to order (μ_B /T)⁶. The results at real chemical potentials are obtained through analytical continuation of simulations at imaginary chemical potentials. We also calculate higher order fluctuations of strangeness and electric charge to obtain the Taylor coefficients of the baryon number fluctuation with vanishing strangeness. We compare to the STAR proton fluctuation data to characterize the chemical freeze-out in view of the lattice results.

Original language	English (US)
Article number	012002
Journal	Journal of Physics: Conference Series
Volume	1070
Issue number	1
DOIs	https://doi.org/10.1088/1742-6596/1070/1/012002
State	Published - Sep 18 2018
Event	34th Winter Workshop on Nuclear Dynamics 2018 - Deshaies, Guadeloupe Duration: Mar 25 2018 → Mar 31 2018

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1088/1742-6596/1070/1/012002

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title = "Lattice thermodynamics at finite chemical potential from analytical Continuation",

abstract = "An efficient way to study the QCD phase diagram at small finite density is to extrapolate thermodynamical observables from imaginary chemical potential. We present results for fluctuations of baryon number to order (μB /T)6. The results at real chemical potentials are obtained through analytical continuation of simulations at imaginary chemical potentials. We also calculate higher order fluctuations of strangeness and electric charge to obtain the Taylor coefficients of the baryon number fluctuation with vanishing strangeness. We compare to the STAR proton fluctuation data to characterize the chemical freeze-out in view of the lattice results.",

author = "Guenther, {Jana N.} and Szabolcs Borsanyi and Zoltan Fodor and Katz, {Sandor K.} and Szab{\'o}, {K. K.} and Attila Pasztor and Israel Portillo and Claudia Ratti",

note = "Publisher Copyright: {\textcopyright} 2018 Institute of Physics Publishing. All rights reserved.; 34th Winter Workshop on Nuclear Dynamics 2018 ; Conference date: 25-03-2018 Through 31-03-2018",

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TY - JOUR

T1 - Lattice thermodynamics at finite chemical potential from analytical Continuation

AU - Guenther, Jana N.

AU - Borsanyi, Szabolcs

AU - Fodor, Zoltan

AU - Katz, Sandor K.

AU - Szabó, K. K.

AU - Pasztor, Attila

AU - Portillo, Israel

AU - Ratti, Claudia

PY - 2018/9/18

Y1 - 2018/9/18

N2 - An efficient way to study the QCD phase diagram at small finite density is to extrapolate thermodynamical observables from imaginary chemical potential. We present results for fluctuations of baryon number to order (μB /T)6. The results at real chemical potentials are obtained through analytical continuation of simulations at imaginary chemical potentials. We also calculate higher order fluctuations of strangeness and electric charge to obtain the Taylor coefficients of the baryon number fluctuation with vanishing strangeness. We compare to the STAR proton fluctuation data to characterize the chemical freeze-out in view of the lattice results.

AB - An efficient way to study the QCD phase diagram at small finite density is to extrapolate thermodynamical observables from imaginary chemical potential. We present results for fluctuations of baryon number to order (μB /T)6. The results at real chemical potentials are obtained through analytical continuation of simulations at imaginary chemical potentials. We also calculate higher order fluctuations of strangeness and electric charge to obtain the Taylor coefficients of the baryon number fluctuation with vanishing strangeness. We compare to the STAR proton fluctuation data to characterize the chemical freeze-out in view of the lattice results.

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U2 - 10.1088/1742-6596/1070/1/012002

DO - 10.1088/1742-6596/1070/1/012002

M3 - Conference article

AN - SCOPUS:85054538462

SN - 1742-6588

VL - 1070

JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

IS - 1

M1 - 012002

T2 - 34th Winter Workshop on Nuclear Dynamics 2018

Y2 - 25 March 2018 through 31 March 2018

ER -

Lattice thermodynamics at finite chemical potential from analytical Continuation

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