Axial U(1) symmetry and mesonic correlators at high temperature in $N_f=2$ lattice QCD Article Swipe

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Kei Suzuki , Sinya Aoki , Yasumichi Aoki , Guido Cossu , Hidenori Fukaya , S. Hashimoto , Christian Rohrhofer ·

YOU? · · 2020 · Open Access · · DOI: https://doi.org/10.48550/arxiv.2001.07962

We investigate the high-temperature phase of QCD using lattice QCD simulations with $N_f = 2$ dynamical Möbius domain-wall fermions. On generated configurations, we study the axial $U(1)$ symmetry, overlap-Dirac spectra, screening masses from mesonic correlators, and topological susceptibility. We find that some of the observables are quite sensitive to lattice artifacts due to a small violation of the chiral symmetry. For those observables, we reweight the Möbius domain-wall fermion determinant by that of the overlap fermion. We also check the volume dependence of observables. Our data near the chiral limit indicates a strong suppression of the axial $U(1)$ anomaly at temperatures $\geq$ 220 MeV.

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Condensed Matter Physics

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Physics Observable Quantum chromodynamics Fermion Lattice QCD Lattice (music) Chiral symmetry Domain wall (magnetism) Anomaly (physics) Chiral symmetry breaking Lattice field theory Particle physics Mathematical physics Condensed matter physics Quantum mechanics Magnetic field Acoustics Magnetization

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Type: preprint
Language: en
Landing Page: http://arxiv.org/abs/2001.07962
PDF: https://arxiv.org/pdf/2001.07962
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Cited By: 2
References: 19
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DOI: https://doi.org/10.48550/arxiv.2001.07962

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Title: Axial U(1) symmetry and mesonic correlators at high temperature in $N_f=2$ lattice QCD

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Language: en

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Publication year: 2020

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Publication date: 2020-01-22

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Authors: Kei Suzuki, Sinya Aoki, Yasumichi Aoki, Guido Cossu, Hidenori Fukaya, S. Hashimoto, Christian Rohrhofer

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Landing page: https://arxiv.org/abs/2001.07962

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Concepts: Physics, Observable, Quantum chromodynamics, Fermion, Lattice QCD, Lattice (music), Chiral symmetry, Domain wall (magnetism), Anomaly (physics), Chiral symmetry breaking, Lattice field theory, Particle physics, Mathematical physics, Condensed matter physics, Quantum mechanics, Magnetic field, Acoustics, Magnetization

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Cited by: 2

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abstract_inverted_index.suppression	93
abstract_inverted_index.topological	36
abstract_inverted_index.correlators,	34
abstract_inverted_index.observables,	62
abstract_inverted_index.observables.	83
abstract_inverted_index.temperatures	100
abstract_inverted_index.overlap-Dirac	28
abstract_inverted_index.configurations,	21
abstract_inverted_index.susceptibility.	37
abstract_inverted_index.high-temperature	3
cited_by_percentile_year
countries_distinct_count	0
institutions_distinct_count	7
citation_normalized_percentile