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arXiv · 1809.00244

Meson correlation functions at high temperature QCD: $SU(2)_{CS}$ symmetry vs. free quarks

C. Rohrhofer·Y. Aoki·G. Cossu·L. Ya. Glozman·S. Hashimoto·S. Prelovsek
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Abstract

We report on the progress of understanding spatial correlation functions in high temperature QCD. We study isovector meson operators in $N_f=2$ QCD using domain-wall fermions on lattices of $N_s=32$ and different quark masses. It has previously been found that at $\sim 2T_c$ these observables are not only chirally symmetric but in addition approximately $SU(2)_{CS}$ and $SU(4)$ symmetric. In this study we increase the temperature up to $5T_c$ and can identify convergence towards an asymptotically free scenario at very high temperatures.

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C. Rohrhofer, Y. Aoki, G. Cossu, L. Ya. Glozman, S. Hashimoto, S. Prelovsek. 2018-09-01. Meson correlation functions at high temperature QCD: $SU(2)_{CS}$ symmetry vs. free quarks. https://arxiv.org/abs/1809.00244

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