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arXiv · 1711.07537

Topological Susceptibility in $N_f=2$ QCD at Finite Temperature

S. Aoki·Y. Aoki·G. Cossu·H. Fukaya·S. Hashimoto·K. Suzuki
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Abstract

We study the topological charge in $N_f=2$ QCD at finite temperature using Möbius domain-wall fermions. The susceptibility $χ_t$ of the topological charge defined either by the index of overlap Dirac operator or a gluonic operator is investigated at several values of temperature $T\ (>T_c)$ 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 $U_A(1)$ is discussed.

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S. Aoki, Y. Aoki, G. Cossu, H. Fukaya, S. Hashimoto, K. Suzuki. 2017-11-20. Topological Susceptibility in $N_f=2$ QCD at Finite Temperature. https://doi.org/10.1051/epjconf%2F201817507024

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