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Sphalerons in the Standard Model with a real Higgs singlet

J. Choi
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Abstract

Sphaleron energies within the standard model with a real Higgs singlet added on are calculated. The coupled non-linear equations of motion are numerically solved and the sphaleron energy evaluated for a set of parameters in the Higgs potential. I find a small difference in the sphaleron energy compared to the standard model. A slightly stronger constraint on the strength of the first order phase transition thus results for this model.

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J. Choi. 1994-09-21. Sphalerons in the Standard Model with a real Higgs singlet. https://doi.org/10.1016/0370-2693(94)01654-u

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