1. Approximate degeneracy of $J=1$ spatial correlators in high temperature QCD
- Author
-
Christian B. Lang, L. Ya. Glozman, G. Cossu, Hidenori Fukaya, Sasa Prelovsek, Yasumichi Aoki, Shoji Hashimoto, and Christian Rohrhofer
- Subjects
Quark ,Physics ,Quantum chromodynamics ,High Energy Physics - Theory ,Particle physics ,Isovector ,Meson ,010308 nuclear & particles physics ,High Energy Physics::Lattice ,Lattice field theory ,ddc:530 ,High Energy Physics - Lattice (hep-lat) ,FOS: Physical sciences ,Fermion ,530 Physik ,01 natural sciences ,High Energy Physics - Phenomenology ,High Energy Physics - Phenomenology (hep-ph) ,High Energy Physics - Lattice ,High Energy Physics - Theory (hep-th) ,0103 physical sciences ,Homogeneous space ,Tensor ,010306 general physics ,SCREENING MASSES ,FLAVOR QCD - Abstract
We study spatial isovector meson correlators in $N_f=2$ QCD with dynamical domain-wall fermions on $32^3\times 8$ lattices at temperatures $T=220-380$ MeV. We measure the correlators of spin-one ($J=1$) operators including vector, axial-vector, tensor and axial-tensor. Restoration of chiral $U(1)_A$ and $SU(2)_L \times SU(2)_R$ symmetries of QCD implies degeneracies in vector--axial-vector ($SU(2)_L \times SU(2)_R$) and tensor--axial-tensor ($U(1)_A$) pairs, which are indeed observed at temperatures above $T_c$. Moreover, we observe an approximate degeneracy of all $J=1$ correlators with increasing temperature. This approximate degeneracy suggests emergent $SU(2)_{CS}$ and $SU(4)$ symmeries at high temperatures, that mix left- and right-handed quarks., This revised version contains all corrections that will appear in the forthcoming erratum
- Published
- 2017