| Issue |
EPJ Web Conf.
Volume 175, 2018
35th International Symposium on Lattice Field Theory (Lattice 2017)
|
|
|---|---|---|
| Article Number | 07029 | |
| Number of page(s) | 8 | |
| Section | 7 Nonzero Temperature and Density | |
| DOI | https://doi.org/10.1051/epjconf/201817507029 | |
| Published online | 26 March 2018 | |
https://doi.org/10.1051/epjconf/201817507029
Degeneracy of vector-channel spatial correlators in high temperature QCD
1
Institute of Physics, University of Graz, 8010 Graz, Austria
2
KEK Theory Center, High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
3
RIKEN BNL Research Center, Brookhaven National Laboratory, Upton NY 11973, USA
4
School of Physics and Astronomy, The University of Edinburgh, Edinburgh EH9 3JZ, United Kingdom
5
Department of Physics, Osaka University, Toyonaka 560-0043, Japan
6
School of High Energy Accelerator Science, The Graduate University for Advanced Studies (Sokendai), Tsukuba 305-0801, Japan
7
Faculty of Mathematics and Physics, University of Ljubljana, 1000 Ljubljana, Slovenia
8
Jozef Stefan Institute, 1000 Ljubljana, Slovenia
9
Institute für Theoretische Physik, Universität Regensburg, D-93040, Germany
* Speaker, e-mail: christian.rohrhofer@uni-graz.at
Published online: 26 March 2018
We study spatial isovector meson correlators in Nf = 2 QCD with dynamical domain-wall fermions on 323 × 8 lattices at temperatures up to 380 MeV with various quark masses. We measure the correlators of spin-one isovector operators including vector, axial-vector, tensor and axial-tensor. At temperatures above Tc we observe an approximate degeneracy of the correlators in these channels, which is unexpected because some of them are not related under SU(2)L×SU(2)R nor U(1)A symmetries. The observed approximate degeneracy suggests emergent SU(2)CS (chiral-spin) and SU(4) symmetries at high T.
© The Authors, published by EDP Sciences, 2018
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