Electroweak baryogenesis via chiral gravitational waves

Abstract

We propose a new mechanism for electroweak baryogenesis based on gravitational waves generated by helical magnetic fields that are present during a first order electroweak phase transition. We generate a net lepton number through the gravitational chiral anomaly which appears due to the chiral gravitational waves produced by these magnetic fields. The observed value of baryon asymmetry can be obtained in our mechanism within parameter space of scenarios with an inverse cascade evolution for magnetic fields which can also be candidates for large-scale magnetic fields.

arXiv comment10 pages, Published version

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Cited by in corpus (8)

• Polarized primordial gravitational waves in the ghost-free parity-violating gravity
• Circular Polarization of Gravitational Waves from Early-Universe Helical Turbulence
• Chiral photons from chiral gravitational waves
• Parity-violation in bouncing cosmology
• A Minimal System Including Weak Sphalerons for Investigating the Evolution of Matter Asymmetries and Hypermagnetic Fields
• Electroweak phase transition in the presence of hypermagnetic field and the generation of gravitational waves
• Gravitational leptogenesis from metric perturbations
• Matter and dark matter asymmetry from a composite Higgs model