Study on the 2nd Responses of Hadronic Masses to Chemical Potential at Finite Temperature


Responses of screening mass of the pseudoscalar meson and chiral condensate in lattice QCD are investigated. On a 16× 8^ 2× 4 lattice with two flavors of staggered quarks the first and second responses below and above T_C are evaluated. Different behavior in the low and the high temperature phases are presented, which may be explained as a consequence of the chiral symmetry breaking and restoration.

Soryushiron Kenkyu