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

S. Aoki; Y. Aoki; G. Cossu; H. Fukaya; S. Hashimoto; K. Suzuki

doi:10.1051/epjconf/201817507024

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

High Energy Physics - Lattice 2018-04-18 v1

Authors: 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 M\"obius domain-wall fermions. The susceptibility $\chi_t$ 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.

Keywords

topological susceptibility nf=2 qcd finite temperature möbius domain-wall fermions overlap dirac operator ua(1) restoration

Cite

@article{arxiv.1711.07537,
  title  = {Topological Susceptibility in $N_f=2$ QCD at Finite Temperature},
  author = {S. Aoki and Y. Aoki and G. Cossu and H. Fukaya and S. Hashimoto and K. Suzuki},
  journal= {arXiv preprint arXiv:1711.07537},
  year   = {2018}
}

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8 pages, 8 figures, Proceedings of the 35th International Symposium on Lattice Field Theory, June 18-24, 2017, Granada, Spain

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

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