Strong Sphalerons and Electroweak Baryogenesis

G. Giudice , M. Shaposhnikov

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classification ✦ hep-ph

keywords asymmetrybaryogenesiselectroweaksphaleronsstrongaccountingalphaanalyze

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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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Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

Spontaneous Baryogenesis from Axions on Induced Electroweak Walls
hep-ph 2026-04 unverdicted novelty 6.0

An axion-like particle's domain wall or shock wave induces an electroweak phase boundary whose motion creates a local B+L chemical potential that biases active sphalerons to generate net baryon asymmetry.