Annihilogenesis

Abstract

We investigate a novel interplay between the decay and annihilation of a particle whose mass undergoes a large shift during a first order phase transition, leading to the particles becoming trapped in the false vacuum and enhancing their annihilation rates as the bubbles of true vacuum expand. This opens up a large region of the parameter space where annihilations can be important. We apply this scenario to baryogenesis, where we find that annihilations can be enhanced enough to generate the requires baryon asymmetry even for relatively tiny annihilation cross sections with modest CP asymmetries.

References in corpus (26)

• Sensitivity Studies for Third-Generation Gravitational Wave Observatories
• Leptogenesis
• A lower bound on the right-handed neutrino mass from leptogenesis
• Progress in Electroweak Baryogenesis
• CP Violation and Baryogenesis due to Heavy Majorana Neutrinos
• Detecting the Cosmic Gravitational Wave Background with the Big Bang Observer
• The QCD phase transition with physical-mass, chiral quarks
• Opening the Window for Electroweak Baryogenesis
• Probing the gravitational wave background from cosmic strings with LISA
• Detecting a gravitational-wave background with next-generation space interferometers
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• Primordial black holes from a cosmic phase transition: The collapse of Fermi-balls
• On the phase structure and thermodynamics of QCD
• Filtered Dark Matter at a First Order Phase Transition
• Fermi-ball dark matter from a first-order phase transition
• Super-cool Dark Matter
• A WIMPy Baryogenesis Miracle
• Phase Transition Temperatures at Next-to-Leading Order
• Dark matter filtering-out effect during a first-order phase transition
• A fresh look at the gravitational-wave signal from cosmological phase transitions
• Probing the baryogenesis and dark matter relaxed in phase transition by gravitational waves and colliders
• Thermal Squeezeout of Dark Matter
• Emergent Dark Matter, Baryon, and Lepton Numbers
• Gravitational wave signals of dark matter freeze-out
• Bubble nucleation and growth in slow cosmological phase transitions
• Baryogenesis via relativistic bubble walls

Cited by in corpus (9)

• Leptogenesis triggered by a first-order phase transition
• First-order phase transition and fate of false vacuum remnants
• Leptogenesis and Dark Matter Through Relativistic Bubble Walls with Observable Gravitational Waves
• Primordial black holes and curvature perturbations from false vacuum islands
• Pinning down the primordial black hole formation mechanism with gamma-rays and gravitational waves
• Detailed Calculation of Primordial Black Hole Formation During First-Order Cosmological Phase Transitions
• Sensitivity to Dark Sector Scales from Gravitational Wave Signatures
• Gravitational-wave signatures from reheating
• What happens when supercooling is terminated by curvature flipping of the effective potential?