Energy of electroweak sphalerons in 1-loop selfconsistent calculations

Details Energy of electroweak sphalerons in 1-loop selfconsistent calculations Energy of electroweak sphalerons in 1-loop selfconsistent calculations

1998-01-29

arxiv.org/abs/hep-ph/9801438v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

LaTeX file, 15 pages, 2 figures, epsf.sty

Scientific paper

We calculate the energy of electroweak sphalerons including one-loop fermionic corrections. This calculation has previously been done by adding the correction to the tree-level sphaleron and interpreting the resulting energy as the 1-loop energy. However, in this paper we calculate the energy by doing a full renormalisation of the parameters on 1-loop-level and redetermining the sphaleron configuration using the full energy functional. When comparing the final result with the tree-level solution we find that the 1-loop calculation will only cause small deviations of the sphaleron energy.

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