Controlling a Non-Polynomial Reduced Finite Temperature Action in the U(1) Higgs Model

Details Controlling a Non-Polynomial Reduced Finite Temperature Action in the U(1) Higgs Model Controlling a Non-Polynomial Reduced Finite Temperature Action in the U(1) Higgs Model

1995-10-05

arxiv.org/abs/hep-ph/9510230v1

Phys.Lett. B367 (1996) 283-289

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, LaTeX, 1 figure appended

Scientific paper

10.1016/0370-2693(95)01387-3

An effective theory is constructed for the scalar electrodynamics via 2-loop integration over all non-static fields and the screened electric component of the vector-potential. Non-polynomial terms of the action are preserved and included into the 2-loop calculation of the effective potential of the reduced theory. Also the inclusion of some non-local terms is shown to be important. The effect of non-polynomial operators on the symmetry restoring phase transition is quantitatively compared to results from a local, superrenormalisable approximate effective theory.

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