screening masses;
electric mass;
magnetic mass;
glueballs;
dimensional reduction;
D O I:
10.1016/S0550-3213(98)00612-9
中图分类号:
O412 [相对论、场论];
O572.2 [粒子物理学];
学科分类号:
摘要:
We studied screening masses in the equilibrium thermodynamics of SU(2) and SU(3) pure gauge theories on the lattice. At a temperature of 2T(c) we found strong evidence for dimensional reduction in the non-perturbative spectrum of screening masses. Mass ratios in the high-temperature SU(3) theory are consistent with those in the pure gauge theory in three dimensions. At the first-order SU(3) phase transition we report the first measurement of the true scalar screening mass. (C) 1998 Elsevier Science B.V.