2004/02/08 by Z. Fodor, Zoltán Fodor, S. D. Katz · 7 citations
Physics and Astronomy · #High-Energy Particle Collisions Research #Quantum Chromodynamics and Particle Interactions #Theoretical and Computational Physics #hep-lat #hep-ph #nucl-th
paper · pdf · doi:10.1088/1126-6708/2004/04/050
published as JHEP 0404 (2004) 050 · 10 pages, 2 figures
arxiv created 2004/02/08 · openalex publication_date 2004/04/22 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
A critical point (E) is expected in QCD on the temperature (T) versus baryonic chemical potential (μ) plane. Using a recently proposed lattice method for μ≠ 0 we study dynamical QCD with nf=2+1 staggered quarks of physical masses on Lt=4 lattices. Our result for the critical point is TE=162 ± 2 MeV and μE= 360 ± 40 MeV. For the critical temperature at μ=0 we obtained Tc=164 ± 2 MeV. This work extends our previous study [Z. Fodor and S.D.Katz, JHEP 0203 (2002) 014] by two means. It decreases the light quark masses (mu,d) by a factor of three down to their physical values. Furthermore, in order to approach the thermodynamical limit we increase our largest volume by a factor of three. As expected, decreasing mu,d decreased μE. Note, that the continuum extrapolation is still missing