Leptogenesis from Oscillations of Heavy Neutrinos with Large Mixing Angles

Abstract

The extension of the Standard Model by heavy right-handed neutrinos can simultaneously explain the observed neutrino masses via the seesaw mechanism and the baryon asymmetry of the Universe via leptogenesis. If the mass of the heavy neutrinos is below the electroweak scale, they may be found at the LHC, BELLE II, NA62, the proposed SHiP experiment or a future high-energy collider. In this mass range, the baryon asymmetry is generated via CP-violating oscillations of the heavy neutrinos during their production. We study the generation of the baryon asymmetry of the Universe in this scenario from first principles of non-equilibrium quantum field theory,including spectator processes and feedback effects. We eliminate several uncertainties from previous calculations and find that the baryon asymmetry of the Universe can be explained with larger heavy neutrino mixing angles, increasing the chance for an experimental discovery. For the limiting cases of fast and strongly overdamped oscillations of right-handed neutrinos, the generation of the baryon asymmetry can be calculated analytically up to corrections of order one.

arXiv comment35 pages plus appendix, 11 figures: Matches version published in JHEP

References in corpus (76)

• Nine-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Parameter Results
• Oscillating neutrinos and mu --> e, gamma
• Leptogenesis
• The $\nu$MSM, Dark Matter and Baryon Asymmetry of the Universe
• Big Bang Nucleosynthesis: 2015
• Resonant Leptogenesis
• CP violating decays in leptogenesis scenarios
• A facility to Search for Hidden Particles at the CERN SPS: the SHiP physics case
• CP Violation and Baryogenesis due to Heavy Majorana Neutrinos
• Leptogenesis as the origin of matter
• Baryogenesis via neutrino oscillations
• Updated fit to three neutrino mixing: status of leptonic CP violation
• Baryogenesis through leptogenesis
• The importance of flavor in leptogenesis
• Introduction to Nonequilibrium Quantum Field Theory
• Flavour Issues in Leptogenesis
• The Sphaleron Rate in the Minimal Standard Model
• On initial conditions for the Hot Big Bang
• Flavour Matters in Leptogenesis
• Low energy effects of neutrino masses
• The Phenomenology of Right Handed Neutrinos
• How to find neutral leptons of the nuMSM?
• Resonant CP violation induced by particle mixing in transition amplitudes
• Sterile Neutrinos as the Origin of Dark and Baryonic Matter
• The nuMSM, leptonic asymmetries, and properties of singlet fermions
• Global Analyses of Neutrino Oscillation Experiments
• Testing sterile neutrino extensions of the Standard Model at future lepton colliders
• New Production Mechanism for Heavy Neutrinos at the LHC
• Quantum Leptogenesis I
• Direct Bounds on Electroweak Scale Pseudo-Dirac Neutrinos from $\sqrt{s}=8$ TeV LHC Data
• Transport equations for chiral fermions to order \hbar and electroweak baryogenesis: Part I
• Transport equations for chiral fermions to order \hbar and electroweak baryogenesis: Part II
• Thermal production of ultrarelativistic right-handed neutrinos: Complete leading-order results
• Leptogenesis from a GeV Seesaw without Mass Degeneracy
• Flavoured Leptogenesis in the CTP Formalism
• Thermal production of relativistic Majorana neutrinos: Strong enhancement by multiple soft scattering
• Spectator processes and baryogenesis
• Finite Number Density Corrections to Leptogenesis
• Testable Baryogenesis in Seesaw Models
• Heavy neutrinos and the $pp\to lljj$ CMS data
• Leptogenesis from first principles in the resonant regime
• Baryon Asymmetry of the Universe in the NuMSM
• Effective Theory of Resonant Leptogenesis in the Closed-Time-Path Approach
• Experimental bounds on sterile neutrino mixing angles
• Thermal right-handed neutrino production rate in the non-relativistic regime
• Leptogenesis from Quantum Interference in a Thermal Bath
• Leptogenesis and Neutrino Oscillations in the Classically Conformal Standard Model with the Higgs Portal
• Mixing of Active and Sterile Neutrinos
• Production of Heavy neutrino in next-to-leading order QCD at the LHC and beyond
• Kinetic Equations for Baryogenesis via Sterile Neutrino Oscillation
• The minimal scenario of leptogenesis
• Towards leptogenesis at NLO: the right-handed neutrino interaction rate
• Lepton number violation as a key to low-scale leptogenesis
• Nonequilibrium Dynamics of Scalar Fields in a Thermal Bath
• Thermal right-handed neutrino production rate in the relativistic regime
• A remark on sphaleron erasure of baryon asymmetry
• Scattering Rates For Leptogenesis: Damping of Lepton Flavour Coherence and Production of Singlet Neutrinos
• Loop level constraints on Seesaw neutrino mixing
• Right-handed neutrino production rate at T > 160 GeV
• An effective field theory for non-relativistic Majorana neutrinos
• Flavoured quantum Boltzmann equations from cQPA
• Neutrinoless double $\beta$ decay and low scale leptogenesis
• Leptogenesis: The Other Cuts
• Sterile Neutrino Dark Matter and Low Scale Leptogenesis from a Charged Scalar
• The Boltzmann Equation from Quantum Field Theory
• Kubo relations and radiative corrections for lepton number washout
• Heavy neutrino search in accelerator-based experiments
• Strong Washout Approximation to Resonant Leptogenesis
• Right-Handed Neutrino Production at Finite Temperature: Radiative Corrections, Soft and Collinear Divergences
• Spectator Effects during Leptogenesis in the Strong Washout Regime
• Lepton number violation by heavy Majorana neutrino in $B$ decays
• Seesaw mechanism at electron-electron colliders
• Lepton asymmetry from mixing and oscillations
• Finite Width in out-of-Equilibrium Propagators and Kinetic Theory
• Coherent Flavour Oscillation and CP Violating Parameter in Thermal Resonant Leptogenesis
• Perturbative Non-Equilibrium Thermal Field Theory to all Orders in Gradient Expansion

Cited by in corpus (42)

• Sterile Neutrino Dark Matter
• Long-Lived Particles at the Energy Frontier: The MATHUSLA Physics Case
• The Present and Future Status of Heavy Neutral Leptons
• Testing the low scale seesaw and leptogenesis
• ARS Leptogenesis
• Probing Leptogenesis at Future Colliders
• Probing Leptogenesis
• Resonant enhancement in leptogenesis
• Low-scale leptogenesis with three heavy neutrinos
• Uniting low-scale leptogeneses
• GeV-scale hot sterile neutrino oscillations: a derivation of evolution equations
• Why is there more matter than antimatter? Calculational methods for leptogenesis and electroweak baryogenesis
• Baryogenesis from L-violating Higgs-doublet decay in the density-matrix formalism
• Neutrino masses, leptogenesis and dark matter from small lepton number violation?
• The New $\nu$MSM : Radiative Neutrino Masses, keV-Scale Dark Matter and Viable Leptogenesis with sub-TeV New Physics
• Majorana vs Pseudo-Dirac Neutrinos at the ILC
• An allowed window for heavy neutral leptons below the kaon mass
• GeV-scale hot sterile neutrino oscillations: a numerical solution
• Precision study of GeV-scale resonant leptogenesis
• Probing the Milky Way's Dark Matter Halo for the 3.5 keV Line
• Heavy neutrinos at future linear e${}^{+}$e${}^{-}$ colliders
• Parameter space of baryogenesis in the $\nu$MSM
• Bounds on right-handed neutrino parameters from observable leptogenesis
• Initial condition for baryogenesis via neutrino oscillation
• Relativistic and spectator effects in leptogenesis with heavy sterile neutrinos
• Freeze-out of baryon number in low-scale leptogenesis
• Kinetic equations for sterile neutrinos from thermal fluctuations
• Leptogenesis from oscillations and dark matter
• Flavour mixing transport theory and resonant leptogenesis
• Measuring lepton number violation in heavy neutral lepton decays at the future muon collider
• Baryogenesis and Dark Matter from Freeze-In
• Tri-Resonant Leptogenesis in a Seesaw Extension of the Standard Model
• Low-Scale Leptogenesis with Low-Energy Dirac CP-Violation
• Low-scale leptogenesis with flavour and CP symmetries
• Freeze-in and freeze-out generation of lepton asymmetries after baryogenesis in the $\nu$MSM
• Neutrino mass generation and leptogenesis via pseudo-Nambu-Goldstone Higgs portal
• Confronting the low-scale seesaw and leptogenesis with neutrinoless double beta decay
• Reconciling resonant leptogenesis and baryogenesis via neutrino oscillations
• Sterile neutrino rates for general $M$, $T$, $\mu$, $k$: review of a theoretical framework
• CP violation in the rare Higgs decays via exchange of on-shell almost degenerate Majorana neutrinos, $H\to {\nu }_k{N}_j\to {\nu }_k{\ell }^{-}U\bar{D}$ and $H\to {\nu }_k{N}_j\to {\nu }_k{\ell }^{+}\bar{U}D$
• On different approaches to freeze-in and freeze-out leptogenesis with quasi-degenerate neutrinos
• Impact of dim-6 $\nu$SMEFT operators on low-scale leptogenesis