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Finite Temperature

Y. Kovchegov and D. Son (INT)

Deconfining phase transition has always been a mystery in QCD at finite temperature since due to largeness of QCD coupling constant at $T_c$ there is no analytic way of quantitatively understanding the process. Together with Dam Son (INT) we have studied deconfining phase transition in the (2+1)-dimensional SU(2) Georgi-Glashow model with an adjoint Higgs. In this model the deconfining phase transition happens when the gauge coupling is still small making analytical approach possible. Around the critical temperature the dynamics of the theory is that of a two-dimensional gas of point charges (W-bosons) and monopoles. The phase transition is of Ising type. We have managed to determine the deconfining phase transition as a function of masses of the Higgs and W-bosons. This work is complete and results are published (NT-UW-02-036, JHEP 0301:050, (2003)).



Martin Savage 2003-08-06