Topological Susceptibility in Nf = 2 QCD at Finite Temperature

We study the topological charge in Nf = 2 QCD at finite temperature using Möbius domain-wall fermions. The susceptibility Xt of the topological charge defined either by the index of overlap Dirac operator or a gluonic operator is investigated at several values of temperature T (> Tc) varying the...

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Bibliographic Details
Main Authors: Aoki Sinya, Aoki Yasumichi, Cossu Guido, Fukaya Hidenori, Hashimoto Shoji, Suzuki Kei
Format: Article
Language:English
Published: EDP Sciences 2018-01-01
Series:EPJ Web of Conferences
Online Access:https://doi.org/10.1051/epjconf/201817507024
Description
Summary:We study the topological charge in Nf = 2 QCD at finite temperature using Möbius domain-wall fermions. The susceptibility Xt of the topological charge defined either by the index of overlap Dirac operator or a gluonic operator is investigated at several values of temperature T (> Tc) varying the quark mass. A strong suppression of the susceptibility is observed below a certain value of the quark mass. The relation with the restoration of UA(1) is discussed.
ISSN:2100-014X