Gluon propagator at high temperature: Screening, improvement and nonzero momenta

Heller UM, Karsch F, Rank J (1998)
PHYSICAL REVIEW D 57(3): 1438-1448.

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We study the gluon propagator and the singlet potential in Landau gauge in the deconfined phase of SU(2) lattice gauge theory, using both the standard Wilson action and a tree-level Symanzik improved action. From the long-distance behavior of correlation functions of temporal and spatial components of the gauge fields we extract electric (m(e)) and magnetic (m(m)) screening masses. For the magnetic mass we find m(m)(T) = 0.456(6)g(2)(T)T. The electric mass can be described by a next-to leading order ansatz. obtained from one loop resummed perturbation theory. However, the best description is given by m(e)(T)=root 1.70(2)g(T)T. The electric screening mass thus is different from its lowest order perturbative prediction even for temperatures as high as T similar to 10(4)T(c).
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Heller UM, Karsch F, Rank J. Gluon propagator at high temperature: Screening, improvement and nonzero momenta. PHYSICAL REVIEW D. 1998;57(3):1438-1448.
Heller, U. M., Karsch, F., & Rank, J. (1998). Gluon propagator at high temperature: Screening, improvement and nonzero momenta. PHYSICAL REVIEW D, 57(3), 1438-1448.
Heller, U. M., Karsch, F., and Rank, J. (1998). Gluon propagator at high temperature: Screening, improvement and nonzero momenta. PHYSICAL REVIEW D 57, 1438-1448.
Heller, U.M., Karsch, F., & Rank, J., 1998. Gluon propagator at high temperature: Screening, improvement and nonzero momenta. PHYSICAL REVIEW D, 57(3), p 1438-1448.
U.M. Heller, F. Karsch, and J. Rank, “Gluon propagator at high temperature: Screening, improvement and nonzero momenta”, PHYSICAL REVIEW D, vol. 57, 1998, pp. 1438-1448.
Heller, U.M., Karsch, F., Rank, J.: Gluon propagator at high temperature: Screening, improvement and nonzero momenta. PHYSICAL REVIEW D. 57, 1438-1448 (1998).
Heller, Urs M., Karsch, Frithjof, and Rank, J. “Gluon propagator at high temperature: Screening, improvement and nonzero momenta”. PHYSICAL REVIEW D 57.3 (1998): 1438-1448.
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