Baryogenesis via Leptogenesis: Spontaneous B and L Violation

Abstract

In order to address the baryon asymmetry in the Universe one needs to understand the origin of baryon (B) and lepton (L) number violation. In this article, we discuss the mechanism of baryogenesis via leptogenesis to explain the matter-antimatter asymmetry in theories with spontaneous breaking of baryon and lepton number. In this context, a lepton asymmetry is generated through the out-of-equilibrium decays of right-handed neutrinos at the high-scale, while local baryon number must be broken below the multi-TeV scale to satisfy the cosmological bounds on the dark matter relic density. We demonstrate how the lepton asymmetry generated via leptogenesis can be converted in two different ways: a) in the theory predicting Majorana dark matter the lepton asymmetry is converted into a baryon asymmetry, and b) in the theory with Dirac dark matter the decays of right-handed neutrinos can generate lepton and dark matter asymmetries that are then partially converted into a baryon asymmetry. Consequently, we show how to explain the matter-antimatter asymmetry, the dark matter relic density and neutrino masses in theories for local baryon and lepton number.

arXiv comment18 pages, 8 figures. v2 References added, to appear in PRD

References in corpus (34)

• Laser Interferometer Space Antenna
• Leptogenesis
• A lower bound on the right-handed neutrino mass from leptogenesis
• Resonant Leptogenesis
• Leptogenesis for Pedestrians
• Global analysis of three-flavour neutrino oscillations: synergies and tensions in the determination of theta_23, delta_CP, and the mass ordering
• Beyond LISA: Exploring Future Gravitational Wave Missions
• Leptogenesis as the origin of matter
• One percent determination of the primordial deuterium abundance
• Asymmetric Dark Matter: Theories, Signatures, and Constraints
• Review of asymmetric dark matter
• The NANOGrav 11-year Data Set: Pulsar-timing Constraints On The Stochastic Gravitational-wave Background
• Asymmetric Dark Matter from Leptogenesis
• Constraints on neutrino masses from leptogenesis models
• Gauge Theory for Baryon and Lepton Numbers with Leptoquarks
• Leptogenesis in the Universe
• Minimal Theory for Lepto-Baryons
• The minimal scenario of leptogenesis
• Theory for Baryon Number and Dark Matter at the LHC
• Resonant Leptogenesis in the Minimal B-L Extended Standard Model at TeV
• Three-Flavoured Non-Resonant Leptogenesis at Intermediate Scales
• Baryonic Dark Matter
• Probing Resonant Leptogenesis at the LHC
• Electroweak Resonant Leptogenesis in the Singlet Majoron Model
• Baryon and Lepton Number Violation from Gravitational Waves
• Leptogenesis and neutral gauge bosons
• Leptophobic Dark Matter and the Baryon Number Violation Scale
• On Anomaly-Free Dark Matter Models
• Baryon Asymmetry, Dark Matter and Local Baryon Number
• Leptogenesis, Z' bosons, and the reheating temperature of the Universe
• Phase Transitions and Baryogenesis From Decays
• Electric Dipole Moments, New Forces and Dark Matter
• Kick-alignment: matter asymmetry sourced dark matter
• Baryonic Higgs and Dark Matter

Cited by in corpus (9)

• Testing leptogenesis at the LHC and future muon colliders: a $Z^{\prime }$ scenario
• TeV Scale Resonant Leptogenesis with $L_{\mu }-L_{\tau }$ Gauge Symmetry in the Light of Muon $(g-2)$
• FIMP Dark Matter from Leptogenesis in Fast Expanding Universe
• Asymmetric dark matter with a spontaneously broken $U(1{)}^{\prime }$: self-interaction and gravitational waves
• Asymmetric Self-interacting Dark Matter via Dirac Leptogenesis
• Gravitational Wave Signatures of Gauged Baryon and Lepton Number
• Theory of Dirac Dark Matter: Higgs Decays and EDMs
• Leptogenesis in automatic Nelson-Barr models
• Probing the Neutrino Seesaw Scale with Gravitational Waves