A ${\bf Z}_2$ Origin for B+L Violation in the Hot Electroweak Theory

Minos Axenides; Andrei Johansen; Holger Bech Nielsen; Ola Törnkvist

A ${\bf Z}_2$ Origin for B+L Violation in the Hot Electroweak Theory

High Energy Physics - Phenomenology 2008-02-03 v3

Authors: Minos Axenides , Andrei Johansen , Holger Bech Nielsen , Ola Törnkvist

Abstract

The space of static finite-energy configurations of the electroweak theory admits a ${\bf Z}_{2}$ topological structure. Odd-parity configurations with odd pure-gauge behavior at spatial infinity (S sphaleron, W-Z strings, multisphalerons) mediate rapid $B+L$ violation in the Early Universe. Configurations with even pure-gauge behavior (S $^{*}$ sphalerons, W-Z strings, multisphalerons) are trivial and topologically equivalent to the vacuum.

Keywords

B+L violation electroweak theory Z2 topology sphalerons early universe

Cite

@article{arxiv.hep-ph/9509354,
  title  = {A ${\bf Z}_2$ Origin for B+L Violation in the Hot Electroweak Theory},
  author = {Minos Axenides and Andrei Johansen and Holger Bech Nielsen and Ola Törnkvist},
  journal= {arXiv preprint arXiv:hep-ph/9509354},
  year   = {2008}
}

Comments

Invited talk at the HEP95 EPS meeting in Brussels. 2 pages, latex

A ${\bf Z}_2$ Origin for B+L Violation in the Hot Electroweak Theory

Abstract

Keywords

Cite

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