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arXiv · hep-ph/9312339

Topological Classification of Odd-Parity Sphaleron Deformations

Minos Axenides·Andrei Johansen
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Abstract

We discuss topological aspects of the electroweak sphaleron and its odd-parity deformations. We demonstrate that they are uniquely classified in terms of their odd and even-parity pure gauge field behaviour at spatial infinity. Fermion level crossing occurs only for odd-parity configurations which are topologically disconnected from the vacuum. They contribute to the high temperature unsuppressed baryon violating thermal transitions. Deformations with even-parity pure gauge behaviour at spatial infinity are topologically trivial and do not mediate baryon number violation in the early Universe.

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Minos Axenides, Andrei Johansen. 1994-02-15. Topological Classification of Odd-Parity Sphaleron Deformations. https://doi.org/10.1142/s0217732394000861

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