TY - JOUR

T1 - Controlling a non-polynomial reduced finite temperature action in the U(1) Higgs model

AU - Jakovác, A.

AU - Patkós, A.

AU - Petreczky, P.

PY - 1996/1/18

Y1 - 1996/1/18

N2 - 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.

AB - 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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U2 - 10.1016/0370-2693(95)01387-3

DO - 10.1016/0370-2693(95)01387-3

M3 - Article

AN - SCOPUS:0000127281

VL - 367

SP - 283

EP - 289

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

SN - 0370-2693

IS - 1-4

ER -