TY - JOUR
T1 - Equation of state in (2+1)-flavor QCD with gradient flow
AU - Kanaya, Kazuyuki
AU - Ejiri, Shinji
AU - Iwami, Ryo
AU - Kitazawa, Masakiyo
AU - Suzuki, Hiroshi
AU - Taniguchi, Yusuke
AU - Umeda, Takashi
AU - Wakabayashi, Naoki
N1 - Funding Information:
gram of High Energy Accelerator Research Organization (KEK) No. 14/15-23, 15/16-T06, 15/16- T-07, and 15/16-25, and by Interdisciplinary Computational Science Program in CCS, University of Tsukuba. This work is in part based on Lattice QCD common code Bridge++ [16].
Publisher Copyright:
© Copyright owned by the author(s).
Copyright:
Copyright 2018 Elsevier B.V., All rights reserved.
PY - 2016
Y1 - 2016
N2 - The energy-momentum tensor and equation of state are studied in finite-temperature (2+1)-flavor QCD with improved Wilson quarks using the method proposed by Makino and Suzuki based on the gradient flow. We find that the results of the gradient flow are consistent with the previous results using the T-integration method at T <∼ 280MeV (Nτ > ∼ 10), while a disagreement is found at T > ∼ 350MeV (Nτ < ∼ 8) presumably due to the small-Nτ lattice artifact. We also report on the results on the renormalized chiral condensate and its disconnected susceptibility using the method of Hieda and Suzuki. The results show a clear signal of the expected chiral restoration crossover even with Wilson-type quarks which violate the chiral symmetry explicitly.
AB - The energy-momentum tensor and equation of state are studied in finite-temperature (2+1)-flavor QCD with improved Wilson quarks using the method proposed by Makino and Suzuki based on the gradient flow. We find that the results of the gradient flow are consistent with the previous results using the T-integration method at T <∼ 280MeV (Nτ > ∼ 10), while a disagreement is found at T > ∼ 350MeV (Nτ < ∼ 8) presumably due to the small-Nτ lattice artifact. We also report on the results on the renormalized chiral condensate and its disconnected susceptibility using the method of Hieda and Suzuki. The results show a clear signal of the expected chiral restoration crossover even with Wilson-type quarks which violate the chiral symmetry explicitly.
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M3 - Conference article
AN - SCOPUS:85025842042
VL - Part F128557
JO - Proceedings of Science
JF - Proceedings of Science
SN - 1824-8039
T2 - 34th Annual International Symposium on Lattice Field Theory, LATTICE 2016
Y2 - 24 July 2016 through 30 July 2016
ER -