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arXiv · hep-ph/9206235

Corrections to the Electroweak Effective Action at Finite Temperature

C. G. Boyd·D. E. Brahm·S. D. H. Hsu
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Abstract

We calculate contributions to the finite temperature effective action for the electroweak phase transition (EWPT) at $Ø(g^4)$, {\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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C. G. Boyd, D. E. Brahm, S. D. H. Hsu. 1992-06-19. Corrections to the Electroweak Effective Action at Finite Temperature. https://doi.org/10.1103/physrevd.48.4952

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