Lattice QCD with chemical potential: the properties of hadrons at the extreme conditions
نویسنده
چکیده
A new technique to investigate small chemical potential effects on hadron quantities using lattice QCD simulations is developed. A Taylor series expansion of hadron screening mass in µ/T is used. It is successfully applied to study the properties of nucleon, pseudo-scalar and vector meson screening masses around the deconfinement phase transition at finite baryonic density by evaluating the Taylor coefficients with respect to the iso-scalar (µ S = µ u = µ d) and iso-vector (µ V = µ u = −µ d) chemical potentials, where µ u and µ d are u and d quark chemical potentials, respectively. We simulate 2-flavor lattice QCD with staggered fermions on a 12 2 × 24 × 6 lattice with ma = 0.025, 0.05 and 0.10. The meson screening mass after chiral extrapolation is presented. c Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence. Lattice QCD with chemical potential: the properties of hadrons at the extreme conditions Irina Pushkina
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