Standard model baryon number violation seeded by black holes
Valerio De Luca, Gabriele Franciolini, Alex Kehagias, Antonio Riotto
Abstract
We show that black holes with a Schwarzschild radius of the order of the electroweak scale may act as seeds for the baryon number violation within the Standard model via sphaleron transitions. The corresponding rate is faster than the one in the pure vacuum and baryon number violation around black holes can take place during the evolution of the universe after the electroweak phase transition. We show however that this does not pose any threat for a pre-existing baryon asymmetry in the universe.
Topics & Concepts
SphaleronBaryon asymmetryPhysicsElectroweak interactionBaryon numberParticle physicsBaryonStandard Model (mathematical formulation)UniverseBaryogenesisAstrophysicsNuclear physicsElectronHistoryArchaeologyLeptonGauge (firearms)Cosmology and Gravitation TheoriesBlack Holes and Theoretical PhysicsNoncommutative and Quantum Gravity Theories