Corrections to the Electroweak Effective Action at Finite Temperature

Details Corrections to the Electroweak Effective Action at Finite Temperature Corrections to the Electroweak Effective Action at Finite Temperature

1992-06-19

arxiv.org/abs/hep-ph/9206235v1

Phys.Rev. D48 (1993) 4952-4962

Physics

High Energy Physics

High Energy Physics - Phenomenology

LaTeX, 6 figures available by email, CALT-68-1795, HUTP-92-A027, EFI-92-22

Scientific paper

10.1103/PhysRevD.48.4952

We calculate contributions to the finite temperature effective action for the electroweak phase transition (EWPT) at $\O(g^4)$, {\it i.e.} at second order in $(g^2 T/\M)$ and all orders in $(g^2 T^2/\M^2)$. This requires plasma-mass corrections in the calculation of the effective potential, inclusion of the ``lollipop'' diagram, and an estimate of derivative corrections. We find the EWPT remains too weakly first-order to drive baryogenesis. We calculate some one loop kinetic energy corrections using both functional and diagrammatic methods; these may be important for saddlepoint configurations such as the bounce or sphaleron.

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