Baryogenesis via Mesino Oscillations

Abstract

We propose a new mechanism for baryogenesis at the 1-200 MeV scale. Enhancement of CP violation takes place via interference between oscillations and decays of mesinos--bound states of a scalar quark and antiquark and their CP conjugates. We present the mechanism in a simplified model with four new fundamental particles, with masses between 300 GeV and 10 TeV, and show that some of the experimentally allowed parameter space can give the observed baryon-to-entropy ratio.

14 pages, 6 figures

References in corpus (12)

• Threshold resummation for squark-antisquark and gluino-pair production at the LHC
• Soft gluon resummation for the production of gluino-gluino and squark-antisquark pairs at the LHC
• High Precision determination of the pi, K, D and D_s decay constants from lattice QCD
• Search for pair-produced resonances decaying to jet pairs in proton-proton collisions at sqrt(s) = 8 TeV
• The Relic Abundance of Long-lived Heavy Colored Particles
• Probing Baryogenesis with Displaced Vertices at the LHC
• The ratio FK/Fpi in QCD
• A TeV Scale Model for Baryon and Lepton Number Violation and Resonant Baryogenesis
• Reduced Fine-Tuning in Supersymmetry with R-parity violation
• Search for massive supersymmetric particles decaying to many jets using the ATLAS detector in $pp$ collisions at $\sqrt{s}=8$ TeV
• Baryogenesis by R-parity violating top quark decays and neutron-antineutron oscillations
• CP Violation in Pseudo-Dirac Fermion Oscillations

Cited by in corpus (9)

• Baryogenesis and Dark Matter from $B$ Mesons
• Baryogenesis from Oscillations of Charmed or Beautiful Baryons
• CP Violating Baryon Oscillations
• Baryogenesis from B Meson Oscillations
• Implications of an Improved Neutron-Antineutron Oscillation Search for Baryogenesis: A Minimal Effective Theory Analysis
• Baryogenesis via Particle-Antiparticle Oscillations
• WIMPs Without Weakness: Generalized Mass Window with Entropy Injection
• Signatures of Bulk Neutrinos in the Early Universe
• Effective Theory for Baryogenesis with a Majorana Fermion Pair Coupled to Quarks