Quark number susceptibilities at high temperatures
Quark number susceptibilities at high temperatures
We calculate second and fourth order quark number susceptibilities for $2+1$ flavor QCD in the high temperature region. In our study, we use two improved staggered fermion formulations, namely, the highly improved staggered quark formulation and the so-called p4 formulation, as well as several lattice spacings. Second order quark number …