Strong Sphalerons and Electroweak Baryogenesis

Details Strong Sphalerons and Electroweak Baryogenesis Strong Sphalerons and Electroweak Baryogenesis

1993-11-26

arxiv.org/abs/hep-ph/9311367v1

Phys.Lett. B326 (1994) 118-124

Physics

High Energy Physics

High Energy Physics - Phenomenology

CERN-TH.7080/93

Scientific paper

10.1016/0370-2693(94)91202-5

We analyze the spontaneous baryogenesis and charge transport mechanisms suggested by Cohen, Kaplan and Nelson for baryon asymmetry generation in extended versions of electroweak theory. We find that accounting for non-perturbative chirality-breaking transitions due to strong sphalerons reduces the baryonic asymmetry by the factor $(m_t/\pi T)^2$ or $\alpha_W$, provided those processes are in thermal equilibrium.

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