Physics – High Energy Physics – High Energy Physics - Lattice
Scientific paper
2000-04-28
Phys.Lett. B497 (2001) 80-84
Physics
High Energy Physics
High Energy Physics - Lattice
11 pages, LaTeX2e, new data added, conclusions unchanged. The final version to appear in Phys. Lett. B
Scientific paper
10.1016/S0370-2693(00)01331-9
We analyze the large distance and low-momentum behavior of the magnetic gluon propagator of the SU(2) gauge theory at finite temperature. Lattice calculations within the 4-dimensional as well as the effective, dimensionally reduced 3-dimensional gauge theories in generalized Landau gauges and MAG show that the magnetic propagator is strongly infrared suppressed in Landau gauges but stays large and finite in MAG. Despite these differences in the low-momentum behavior of the propagator calculated in different gauges the magnetic fields are exponentially screened in all gauges considered. From the propagator calculated in maximally Abelian gauge we find for the screening mass, m_M = (1.48 +/- 0.17) T at T=2 T_c.
Cucchieri Attilio
Karsch Frithjof
Petreczky Peter
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