Continuum-extrapolated high-order baryon fluctuations

Szabolcs Borsányi; Zoltán Fodor; Jana N. Guenther; Sándor D. Katz; Paolo Parotto; Attila Pásztor; Dávid Pesznyák; Kálmán K. Szabó; Chik Him Wong

doi:10.1103/PhysRevD.110.L011501

Continuum-extrapolated high-order baryon fluctuations

Szabolcs Borsányi, Zoltán Fodor, Jana N. Guenther, Sándor D. Katz, Paolo Parotto, Attila Pásztor, Dávid Pesznyák, Kálmán K. Szabó, Chik Him Wong

Physics

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

Abstract

Fluctuations play a key role in the study of QCD phases. Lattice QCD is a valuable tool to calculate them, but going to high orders is challenging. Up to the fourth order, continuum results have been available since 2015. We present the first continuum results for sixth-order baryon fluctuations for temperatures between T=130 and 200 MeV and eighth order at T=145 MeV in a fixed volume. Comparison with earlier studies with imaginary chemical potential suggests that the volume effect is under control for T<145 MeV. Our results are in sharp contrast with well-known results in the literature obtained at finite lattice spacing.

Original language	English (US)
Article number	L011501
Journal	Physical Review D
Volume	110
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevD.110.L011501
State	Published - Jul 1 2024

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics

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10.1103/PhysRevD.110.L011501

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title = "Continuum-extrapolated high-order baryon fluctuations",

abstract = "Fluctuations play a key role in the study of QCD phases. Lattice QCD is a valuable tool to calculate them, but going to high orders is challenging. Up to the fourth order, continuum results have been available since 2015. We present the first continuum results for sixth-order baryon fluctuations for temperatures between T=130 and 200 MeV and eighth order at T=145 MeV in a fixed volume. Comparison with earlier studies with imaginary chemical potential suggests that the volume effect is under control for T<145 MeV. Our results are in sharp contrast with well-known results in the literature obtained at finite lattice spacing.",

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AU - Borsányi, Szabolcs

AU - Fodor, Zoltán

AU - Guenther, Jana N.

AU - Katz, Sándor D.

AU - Parotto, Paolo

AU - Pásztor, Attila

AU - Pesznyák, Dávid

AU - Szabó, Kálmán K.

AU - Wong, Chik Him

N1 - Publisher Copyright: © 2024 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3.

PY - 2024/7/1

Y1 - 2024/7/1

N2 - Fluctuations play a key role in the study of QCD phases. Lattice QCD is a valuable tool to calculate them, but going to high orders is challenging. Up to the fourth order, continuum results have been available since 2015. We present the first continuum results for sixth-order baryon fluctuations for temperatures between T=130 and 200 MeV and eighth order at T=145 MeV in a fixed volume. Comparison with earlier studies with imaginary chemical potential suggests that the volume effect is under control for T<145 MeV. Our results are in sharp contrast with well-known results in the literature obtained at finite lattice spacing.

AB - Fluctuations play a key role in the study of QCD phases. Lattice QCD is a valuable tool to calculate them, but going to high orders is challenging. Up to the fourth order, continuum results have been available since 2015. We present the first continuum results for sixth-order baryon fluctuations for temperatures between T=130 and 200 MeV and eighth order at T=145 MeV in a fixed volume. Comparison with earlier studies with imaginary chemical potential suggests that the volume effect is under control for T<145 MeV. Our results are in sharp contrast with well-known results in the literature obtained at finite lattice spacing.

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IS - 1

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ER -

Continuum-extrapolated high-order baryon fluctuations

Abstract

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