Baryogenesis via Particle-Antiparticle Oscillations

Abstract

CP violation, which is crucial for producing the baryon asymmetry of the Universe, is enhanced in particle-antiparticle oscillations. We study particle-antiparticle oscillations (of a particle with mass O(100 GeV)) with CP violation in the early Universe in the presence of interactions with O(ab-fb) cross-sections. We show that, if baryon-number-violating interactions exist, a baryon asymmetry can be produced via out-of-equilibrium decays of oscillating particles. As a concrete example we study a $U(1{)}_R$-symmetric, R-parity-violating SUSY model with pseudo-Dirac gauginos, which undergo particle-antiparticle oscillations. Taking bino to be the lightest $U(1{)}_R$-symmetric particle, and assuming it decays via baryon-number-violating interactions, we show that bino-antibino oscillations can produce the baryon asymmetry of the Universe.

arXiv comment17 pages, 11 figures, refs added, typos fixed

References in corpus (29)

• Out Of This World Supersymmetry Breaking
• Gaugino Mass without Singlets
• Leptogenesis
• R-parity violating supersymmetry
• Resonant Leptogenesis
• Electroweak baryogenesis
• Aspects of Split Supersymmetry
• Asymmetric Dark Matter: Theories, Signatures, and Constraints
• Flavour Issues in Leptogenesis
• The Sphaleron Rate in the Minimal Standard Model
• Dark Matter, Baryogenesis and Neutrino Oscillations from Right Handed Neutrinos
• Flavour Covariant Transport Equations: an Application to Resonant Leptogenesis
• Soft Leptogenesis
• Leptogenesis from Supersymmetry Breaking
• CPV Phenomenology of Flavor Conserving Two Higgs Doublet Models
• Flavoured Leptogenesis in the CTP Formalism
• Quantum Boltzmann Equations and Leptogenesis
• BBN For Pedestrians
• Kadanoff-Baym Approach to Flavour Mixing and Oscillations in Resonant Leptogenesis
• Probing Baryogenesis with Displaced Vertices at the LHC
• Oscillating Asymmetric Dark Matter
• Consequences of DM/antiDM Oscillations for Asymmetric WIMP Dark Matter
• Quantum Resonant Leptogenesis and Minimal Lepton Flavour Violation
• Pseudo-Dirac Bino Dark Matter
• Resonant Flavor Oscillations in Electroweak Baryogenesis
• On Quantum Effects in Soft Leptogenesis
• Baryogenesis via Mesino Oscillations
• CP Violation in Pseudo-Dirac Fermion Oscillations
• Phenomenology of Baryogenesis from Lepton-Doublet Mixing

Cited by in corpus (13)

• Long-Lived Particles at the Energy Frontier: The MATHUSLA Physics Case
• Searching for long-lived particles beyond the Standard Model at the Large Hadron Collider
• New Detectors to Explore the Lifetime Frontier
• Baryogenesis from Oscillations of Charmed or Beautiful Baryons
• Analysis of Long Lived Particle Decays with the MATHUSLA Detector
• Collider Signals of Baryogenesis and Dark Matter from $B$ Mesons: A Roadmap to Discovery
• New Physics Opportunities for Long-Lived Particles at Electron-Proton Colliders
• Data-driven Model-independent Searches for Long-lived Particles at the LHC
• Baryogenesis from B Meson Oscillations
• Semi-analytic techniques for calculating bubble wall profiles
• Baryogenesis and Dark Matter from Freeze-In
• LHC phenomenology and baryogenesis in supersymmetric models with a $U(1{)}_R$ baryon number
• To catch a long-lived particle: hit selection towards a regional hardware track trigger implementation