Leptogenesis without violation of B-L

Abstract

We study the possibility of generating the observed baryon asymmetry via leptogenesis in the decay of heavy Standard Model singlet fermions which carry lepton number, in a framework without Majorana masses above the electroweak scale. Such scenario does not contain any source of total lepton number violation besides the Standard Model sphalerons, and the baryon asymmetry is generated by the interplay of lepton flavour effects and the sphaleron decoupling in the decay epoch.

V2 (published version): 21 pages, 4 figures. Some explanations have been added

References in corpus (11)

• Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Likelihoods and Parameters from the WMAP data
• Leptogenesis
• Right-Handed Neutrinos at LHC and the Mechanism of Neutrino Mass Generation
• Flavour Matters in Leptogenesis
• Unitarity of the Leptonic Mixing Matrix
• Non-Standard Neutrino Interactions with Matter from Physics Beyond the Standard Model
• Minimal Flavour Seesaw Models
• Signatures for Majorana neutrinos at hadron colliders
• Heavy neutrino signals at large hadron colliders
• CP violation in scatterings, three body processes and the Boltzmann equations for leptogenesis
• Electroweak Resonant Leptogenesis in the Singlet Majoron Model

Cited by in corpus (21)

• Leptogenesis with TeV Scale Inverse Seesaw in SO(10)
• Reconciling leptogenesis with observable mu --> e gamma rates
• Non-unitary Leptonic Mixing and Leptogenesis
• Mass bounds for baryogenesis from particle decays and the inert doublet model
• Leptogenesis with small violation of B-L
• On baryogenesis from dark matter annihilation
• Cloistered Baryogenesis
• CP Violation from Scatterings with Gauge Bosons in Leptogenesis
• Triplet Scalar Dark Matter and Leptogenesis in an Inverse See-Saw Model of Neutrino Mass Generation
• Similar Dark Matter and Baryon abundances with TeV-scale Leptogenesis
• Mu-tau reflection symmetry with a high scale texture-zero
• A cosmological pathway to testable leptogenesis
• Natural Seesaw and Leptogenesis from Hybrid of High-Scale Type I and TeV-Scale Inverse
• TeV Scale Leptogenesis in B-L Model with Alternative Cosmologies
• On fast CP violating interactions in leptogenesis
• Dirac Leptogenesis with a Non-anomalous $U(1{)}^{\prime }$ Family Symmetry
• Maximal zero textures of the inverse seesaw with broken $\mu \tau$ symmetry
• Mechanism for baryogenesis via feebly interacting massive particles
• Ultraviolet freeze-in baryogenesis
• The role of lepton flavor symmetries in leptogenesis
• Non-resonant leptogenesis in seesaw models with an almost conserved B-L