Axial U(1) symmetry at high temperatures in $N_f=2+1$ lattice QCD with chiral fermions

Axial U(1) symmetry at high temperatures in $N_f=2+1$ lattice QCD with chiral fermions

We study the $U(1)_A$ anomaly in the high-temperature phase of $N_f=2+1$ lattice QCD with chiral fermions. Gauge ensembles are generated with M\"obius domain-wall (MDW) fermions, and in the measurements the determinant is reweighted to that of overlap fermions. We report the results for the ove...

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Hauptverfasser: Aoki, Sinya, Aoki, Yasumichi, Fukaya, Hidenori, Hashimoto, Shoji, Kanamori, Issaku, Kaneko, Takashi, Nakamura, Yoshifumi, Rohrhofer, Christian, Suzuki, Kei
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Physics - High Energy Physics - Lattice
Physics - High Energy Physics - Phenomenology
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creator Aoki, Sinya
Aoki, Yasumichi
Fukaya, Hidenori
Hashimoto, Shoji
Kanamori, Issaku
Kaneko, Takashi
Nakamura, Yoshifumi
Rohrhofer, Christian
Suzuki, Kei
description We study the $U(1)_A$ anomaly in the high-temperature phase of $N_f=2+1$ lattice QCD with chiral fermions. Gauge ensembles are generated with M\"obius domain-wall (MDW) fermions, and in the measurements the determinant is reweighted to that of overlap fermions. We report the results for the overlap Dirac spectrum, $U(1)_A$ susceptibility, and topological susceptibility at $T=204$ and $175$ MeV.
doi_str_mv 10.48550/arxiv.2203.16059
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title Axial U(1) symmetry at high temperatures in $N_f=2+1$ lattice QCD with chiral fermions
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