Year: 1997
Type: article
Abstract: We calculate the two flavor equation of state for QCD on lattices with lattice spacing ${a=(6T)}^{\ensuremath{-}1}$ and find that cutoff effects are substantially reduced compared to an earlier study using ${a=(4T)}^{\ensuremath{-}1}$. However, it is likely that significant cutoff effects remain. We fit the lattice data to expected forms of the free energy density for a second order phase transition at zero-quark mass, which allows us to extrapolate the equation of state to ${m}_{q}=0$ and to extract the speed of sound. We find that the equation of state depends weakly on the quark mass for small quark mass.
Institution: Washington University in St. Louis
Language: Latvian
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W3015683252