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Electroweak Baryogenesis from a Classical Force
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We describe a new effect which produces baryons at a first order electroweak phase transition. It operates when there is a CP-violating field present on propagating bubble walls. The novel aspect is that it involves a purely classical force, which alters the motion of particles across the wall and through diffusion creates a chiral asymmetry in front of the wall. We develop a technique for computing the baryon asymmetry using the Boltzmann equation, and a fluid approximation which allows us to model strong scattering effects. The final formula for the baryon asymmetry has a remarkably simple form.
Forward citations
Cited by 3 Pith papers
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Inverse Electroweak Baryogenesis
The paper proposes inverse electroweak baryogenesis where baryon asymmetry arises from equilibrium sphaleron processes in the presence of a conserved global charge during an inverse phase transition that alters electr...
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Systematic derivation of the Boltzmann equation for electroweak baryogenesis
A Kadanoff-Baym derivation yields Boltzmann equations with self-energy-corrected quasiparticle shells, adding a CP-violating velocity and force correction for fermions and none for bosons.
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Real-Time Simulation of Asymmetry Generation in Fermion-Bubble Collisions
Real-time tensor-network scattering of fermions off a complex-mass bubble wall in 1+1D yields a nonzero C asymmetry, captured by new magnitude and phase observables.
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