arXiv:2401.06459·v2·High Energy Physics — Lattice
Chiral susceptibility and axial U(1) anomaly near the (pseudo-)critical temperature
S. Aoki🇯🇵 · Y. Aoki🇯🇵 · H. Fukaya🇯🇵 · S. Hashimoto🇯🇵 · I. Kanamori🇯🇵 · T. Kaneko🇯🇵 · Y. Nakamura🇯🇵 · K. Suzuki🇯🇵 · D. Ward🇯🇵
Abstract
We investigate relations between the chiral susceptibility and axial anomaly in lattice QCD at high temperatures. Employing the exactly chiral symmetric Dirac operator, we separate the purely axial breaking effect in the connected and disconnected chiral susceptibilites in a theoretically clean manner. Preliminary results for two-flavor lattice QCD near the critical temperature are presented.
Comments: 9 pages, 3 figures, LATTICE2023, minor corrections