Resummed lattice QCD equation of state at finite baryon density: strangeness neutrality and beyond

Jana N. Guenther; Szabolcs Borsanyi; Zoltan Fodor; Matteo Giordano; Sandor D. Katz; Ruben Kara; Paolo Parotto; Attila Pasztor; Claudia Ratti; Kalman K. Szabo; Chik Him Wong

Resummed lattice QCD equation of state at finite baryon density: strangeness neutrality and beyond

Jana N. Guenther
, Szabolcs Borsanyi
, Zoltan Fodor
, Matteo Giordano
, Sandor D. Katz
, Ruben Kara
, Paolo Parotto
, Attila Pasztor
, Claudia Ratti
, Kalman K. Szabo
, Chik Him Wong

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

Abstract

We calculate a resummed equation of state with lattice QCD simulations at imaginary chemical potentials, generalizing the scheme introduced in our previous work to the case of non-zero μ_S, and focusing on the line of strangeness neutrality. We present results up to μ_B/T ≤ 3.5 on the strangeness neutral line 〈S〉 = 0 in the temperature range 130 MeV≤ T ≤ 280 MeV. We also extrapolate the finite baryon density equation of state to small non-zero values of the strangeness-to-baryon ratio R = 〈S〉/〈B〉. We perform a continuum extrapolation using lattice simulations of the 4stout-improved staggered action with 8, 10, 12 and 16 time slices. Finally we test the resummation scheme in a small volume by comparison with direct simulations.

Original language	English (US)
Article number	150
Journal	Proceedings of Science
Volume	430
State	Published - Apr 6 2023
Event	39th International Symposium on Lattice Field Theory, LATTICE 2022 - Bonn, Germany Duration: Aug 8 2022 → Aug 13 2022

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Cite this

@article{bb7c87c25e8d4f9a8997f243f379821e,

title = "Resummed lattice QCD equation of state at finite baryon density: strangeness neutrality and beyond",

abstract = "We calculate a resummed equation of state with lattice QCD simulations at imaginary chemical potentials, generalizing the scheme introduced in our previous work to the case of non-zero μS, and focusing on the line of strangeness neutrality. We present results up to μB/T ≤ 3.5 on the strangeness neutral line 〈S〉 = 0 in the temperature range 130 MeV≤ T ≤ 280 MeV. We also extrapolate the finite baryon density equation of state to small non-zero values of the strangeness-to-baryon ratio R = 〈S〉/〈B〉. We perform a continuum extrapolation using lattice simulations of the 4stout-improved staggered action with 8, 10, 12 and 16 time slices. Finally we test the resummation scheme in a small volume by comparison with direct simulations.",

author = "Guenther, \{Jana N.\} and Szabolcs Borsanyi and Zoltan Fodor and Matteo Giordano and Katz, \{Sandor D.\} and Ruben Kara and Paolo Parotto and Attila Pasztor and Claudia Ratti and Szabo, \{Kalman K.\} and Wong, \{Chik Him\}",

note = "Publisher Copyright: {\textcopyright} Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0).; 39th International Symposium on Lattice Field Theory, LATTICE 2022 ; Conference date: 08-08-2022 Through 13-08-2022",

year = "2023",

month = apr,

day = "6",

language = "English (US)",

volume = "430",

journal = "Proceedings of Science",

issn = "1824-8039",

publisher = "Sissa Medialab Srl",

}

TY - JOUR

T1 - Resummed lattice QCD equation of state at finite baryon density

T2 - 39th International Symposium on Lattice Field Theory, LATTICE 2022

AU - Guenther, Jana N.

AU - Borsanyi, Szabolcs

AU - Fodor, Zoltan

AU - Giordano, Matteo

AU - Katz, Sandor D.

AU - Kara, Ruben

AU - Parotto, Paolo

AU - Pasztor, Attila

AU - Ratti, Claudia

AU - Szabo, Kalman K.

AU - Wong, Chik Him

N1 - Publisher Copyright: © Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0).

PY - 2023/4/6

Y1 - 2023/4/6

N2 - We calculate a resummed equation of state with lattice QCD simulations at imaginary chemical potentials, generalizing the scheme introduced in our previous work to the case of non-zero μS, and focusing on the line of strangeness neutrality. We present results up to μB/T ≤ 3.5 on the strangeness neutral line 〈S〉 = 0 in the temperature range 130 MeV≤ T ≤ 280 MeV. We also extrapolate the finite baryon density equation of state to small non-zero values of the strangeness-to-baryon ratio R = 〈S〉/〈B〉. We perform a continuum extrapolation using lattice simulations of the 4stout-improved staggered action with 8, 10, 12 and 16 time slices. Finally we test the resummation scheme in a small volume by comparison with direct simulations.

AB - We calculate a resummed equation of state with lattice QCD simulations at imaginary chemical potentials, generalizing the scheme introduced in our previous work to the case of non-zero μS, and focusing on the line of strangeness neutrality. We present results up to μB/T ≤ 3.5 on the strangeness neutral line 〈S〉 = 0 in the temperature range 130 MeV≤ T ≤ 280 MeV. We also extrapolate the finite baryon density equation of state to small non-zero values of the strangeness-to-baryon ratio R = 〈S〉/〈B〉. We perform a continuum extrapolation using lattice simulations of the 4stout-improved staggered action with 8, 10, 12 and 16 time slices. Finally we test the resummation scheme in a small volume by comparison with direct simulations.

UR - https://www.scopus.com/pages/publications/85153282341

UR - https://www.scopus.com/pages/publications/85153282341#tab=citedBy

M3 - Conference article

AN - SCOPUS:85153282341

SN - 1824-8039

VL - 430

JO - Proceedings of Science

JF - Proceedings of Science

M1 - 150

Y2 - 8 August 2022 through 13 August 2022

ER -

Resummed lattice QCD equation of state at finite baryon density: strangeness neutrality and beyond

Abstract

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