Speaker
Description
The order of finite temperature QCD phase transition on the lower left corner of Columbia plot is yet to be determined, and the current studies show that the bound of critical mass has a strong cutoff and discretization scheme dependence. We present an update on the QCD phase transition with 3 flavors of Möbius domain wall fermions at zero chemical potential. We performed simulations on lattices of size $36^3\times12\times16$, $24^3\times12\times32$ and $36^3\times14\times16$ with a varity of quark masses at lattice spacing $a=0.1361(20)$ fm. Our previous study with one volume ( $24^3\times12\times16$) appeared to be consistent with a crossover at quark mass around 4 MeV ($\overline{\mathrm{MS}}$, 2 GeV) for temperature 121 MeV by investigating the Binder cumulant [1]. Now we add the larger volume ($36^3\times12\times16$) computation to investigate the volume dependence towards the thermodynamic limit for this temperature. In this talk, we will show the results of such analyses to discuss the nature of transition there. Besides that, with the newly generated lattices $24^3\times12\times32$, we will show the the effects of residual chiral symmetry breaking on the observables by using different $L_s$.
[1] Finite temperature QCD phase transition with 3 flavors of Möbius domain wall fermions, Yu Zhang et al., PoS LATTICE2022 (2023) 197
| Topical area | QCD at Non-zero Temperature |
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