THE GLUON PROPAGATOR AT HIGH-TEMPERATURE

We study the gluon propagator in Landau gauge in the deconfined phase of SU(2) gauge theory. From the long-distance behaviour of correlation functions of temporal and spatial components of the gauge fields we extract electric (m(l)) and magnetic (m(m)) screening masses. For temperatures larger than twice T-c we find no additional temperature dependence in m(l)(T)/T, while m(m)(T)/T drops with increasing temperature. The decrease is consistent with the expected behaviour,m(m)(T) similar to g(2)(T)T We find m(l)(T) = 2.484(52)T and m(m)(T) = 0.466(15)g(2)(T)T.