Vector Meson Mass in Finite Density and Temperature Lattice QCD* *Supported by the National Science Foundation of China (NSFC) under Grant Nos. 11335001, 11105153, 11405178. It is also supported in part by the DFG and the NSFC (No. 11261130311) through funds provided to the Sino-Germen CRC 110 “Symmetries and the Emergence of Structure in QCD”. The numerical calculations were performed

Abstract

Vector meson mass values are studied at finite chemical potential and temperature in lattice QCD with lattice size of 24 × 122 × 6 using two flavors of staggered quarks. The investigation focuses on the change of the vector meson mass in the critical region close to Tc with two different types of chemical potentials switched on: the isoscalar chemical potential μs and its isovector counterpart μv. It is found that the vector meson mass increases in the QGP phase with both chemical potentials and decreases with μs in the confinement phase.