The crossover line in the (T, μ)-phase diagram of QCD

Jana N. Guenther; Szabolcs Borsányi; Zoltan Fodor; Ruben Kara; Sandor D. Katz; Paolo Parotto; Attila Pásztor; Claudia Ratti; Kalman K. Szabó

doi:10.1016/j.nuclphysa.2020.121782

The crossover line in the (T, μ)-phase diagram of QCD

Jana N. Guenther, Szabolcs Borsányi, Zoltan Fodor, Ruben Kara, Sandor D. Katz, Paolo Parotto, Attila Pásztor, Claudia Ratti, Kalman K. Szabó

Physics

Research output: Contribution to journal › Article › peer-review

Abstract

An efficient way to study the QCD phase diagram at small finite density is to extrapolate thermodynamical observables from imaginary chemical potential. The phase diagram features a crossover line starting from the transition temperature already determined at zero chemical potential. In this work we focus on the Taylor expansion of this line up to μ⁴ contributions. We present the continuum extrapolation of the crossover temperature based on different observables at several lattice spacings.

Original language	English (US)
Article number	121782
Journal	Nuclear Physics A
Volume	1005
DOIs	https://doi.org/10.1016/j.nuclphysa.2020.121782
State	Published - Jan 2021

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics

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10.1016/j.nuclphysa.2020.121782

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title = "The crossover line in the (T, μ)-phase diagram of QCD",

abstract = "An efficient way to study the QCD phase diagram at small finite density is to extrapolate thermodynamical observables from imaginary chemical potential. The phase diagram features a crossover line starting from the transition temperature already determined at zero chemical potential. In this work we focus on the Taylor expansion of this line up to μ4 contributions. We present the continuum extrapolation of the crossover temperature based on different observables at several lattice spacings.",

author = "Guenther, {Jana N.} and Szabolcs Bors{\'a}nyi and Zoltan Fodor and Ruben Kara and Katz, {Sandor D.} and Paolo Parotto and Attila P{\'a}sztor and Claudia Ratti and Szab{\'o}, {Kalman K.}",

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doi = "10.1016/j.nuclphysa.2020.121782",

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AU - Guenther, Jana N.

AU - Borsányi, Szabolcs

AU - Fodor, Zoltan

AU - Kara, Ruben

AU - Katz, Sandor D.

AU - Parotto, Paolo

AU - Pásztor, Attila

AU - Ratti, Claudia

AU - Szabó, Kalman K.

PY - 2021/1

Y1 - 2021/1

N2 - An efficient way to study the QCD phase diagram at small finite density is to extrapolate thermodynamical observables from imaginary chemical potential. The phase diagram features a crossover line starting from the transition temperature already determined at zero chemical potential. In this work we focus on the Taylor expansion of this line up to μ4 contributions. We present the continuum extrapolation of the crossover temperature based on different observables at several lattice spacings.

AB - An efficient way to study the QCD phase diagram at small finite density is to extrapolate thermodynamical observables from imaginary chemical potential. The phase diagram features a crossover line starting from the transition temperature already determined at zero chemical potential. In this work we focus on the Taylor expansion of this line up to μ4 contributions. We present the continuum extrapolation of the crossover temperature based on different observables at several lattice spacings.

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VL - 1005

JO - Nuclear Physics A

JF - Nuclear Physics A

M1 - 121782

ER -

The crossover line in the (T, μ)-phase diagram of QCD

Abstract

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