Symmetry restoration at finite temperature with weak magnetic fields

Details Symmetry restoration at finite temperature with weak magnetic fields Symmetry restoration at finite temperature with weak magnetic fields

2010-07-23

arxiv.org/abs/1007.4208v2

Phys.Rev.D82:123007,2010

Physics

High Energy Physics

High Energy Physics - Phenomenology

29 pages, 13 figures, to appear in Phys. Rev. D. [v2]: replaced figures 7-13 and minor corrections to typos, matches Phys. Rev

Scientific paper

10.1103/PhysRevD.82.123007

We study symmetry restoration at finite temperature in the standard model during the electroweak phase transition in the presence of a weak magnetic field. We compute the finite temperature effective potential up to the contribution of ring diagrams, using the broken phase degrees of freedom, and keep track of the gauge parameter dependence of the results. We show that under these conditions, the phase transition becomes stronger first order.

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