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Supersymmetric Electroweak Baryogenesis in the WKB approximation

2 Pith papers cite this work. Polarity classification is still indexing.

2 Pith papers citing it
abstract

We calculate the baryon asymmetry generated at the electroweak phase transition in the minimal supersymmetric standard model, treating the particles in a WKB approximation in the bubble wall background. A set of diffusion equations for the particle species relevant to baryon generation, including source terms arising from the CP violation associated with the complex phase $\delta$ of the $\mu$ parameter, are derived from Boltzmann equations, and solved. The conclusion is that $\delta$ must be $\gsim 0.1$ to generate a baryon asymmetry consistent with nucleosynthesis. We compare our results to several other recent computations of the effect, arguing that some are overestimates.

fields

hep-ph 2

years

2026 1 2024 1

verdicts

UNVERDICTED 2

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representative citing papers

Does the Electron EDM Preclude Electroweak Baryogenesis ?

hep-ph · 2024-04-30 · unverdicted · novelty 6.0

First-order gradient CP-violating sources in EWBG quantum transport relax electron EDM bounds and increase viability compared to prior approximations in a model illustration.

A Deep Dive into Baryon Asymmetry -- the C2HDM

hep-ph · 2026-06-02 · unverdicted · novelty 4.0

New BSMPT implementation of baryon asymmetry computation using WKB transport equations with moment truncations and VEV profile solving, validated in the C2HDM with uncertainty and GW interplay analysis.

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  • Does the Electron EDM Preclude Electroweak Baryogenesis ? hep-ph · 2024-04-30 · unverdicted · none · ref 23 · internal anchor

    First-order gradient CP-violating sources in EWBG quantum transport relax electron EDM bounds and increase viability compared to prior approximations in a model illustration.