A new constraint on primordial lepton flavour asymmetries
arXiv:2208.03237 · doi:10.1103/PhysRevLett.130.261803
Abstract
A chiral chemical potential present in the early universe can source helical hypermagnetic fields through the chiral plasma instability. If these hypermagnetic fields survive until the electroweak phase transition, they source a contribution to the baryon asymmetry of the universe. In this letter, we demonstrate that lepton flavour asymmetries above trigger this mechanism even for vanishing total lepton number. This excludes the possibility of such large lepton flavour asymmetries present at temperatures above GeV, setting a constraint which is about two orders of magnitude stronger than the current CMB and BBN limits.
arXiv comment4 pages, matches journal version
References in corpus (57)
- The Chiral Magnetic Effect
- The MSM, Dark Matter and Baryon Asymmetry of the Universe
- Cosmological Magnetic Fields: Their Generation, Evolution and Observation
- Transport coefficients in high temperature gauge theories: (I) Leading-log results
- Primordial Nucleosynthesis: from precision cosmology to fundamental physics
- Primordial Magnetic Fields, Right Electrons, and the Abelian Anomaly
- Precision big bang nucleosynthesis with improved Helium-4 predictions
- Primordial Hypermagnetic Fields and Triangle Anomaly
- Quantum Anomalies in Dense Matter
- The Evolution of Cosmic Magnetic Fields: From the Very Early Universe, to Recombination, to the Present
- Self-consistent evolution of magnetic fields and chiral asymmetry in the early Universe
- Sphaleron Erasure of Primordial Baryogenesis
- Axion Kinetic Misalignment Mechanism
- Universality of transport properties in equilibrium, Goldstone theorem and chiral anomaly
- Primordial magnetic fields, anomalous isocurvature fluctuations and Big Bang nucleosynthesis
- Axiogenesis
- Evolution of Primordial Magnetic Fields from Phase Transitions
- Gauge Field and Fermion Production during Axion Inflation
- The Electrical Conductivity in the Early Universe
- EMPRESS. VIII. A New Determination of Primordial He Abundance with Extremely Metal-Poor Galaxies: A Suggestion of the Lepton Asymmetry and Implications for the Hubble Tension
- Evolution of the Baryon Asymmetry through the Electroweak Crossover in the Presence of a Helical Magnetic Field
- Baryon Asymmetry and Gravitational Waves from Pseudoscalar Inflation
- Large lepton asymmetry from Q-balls
- The turbulent chiral-magnetic cascade in the early universe
- Generation of Large Lepton Asymmetries
- Predictions for Axion Couplings from ALP Cogenesis
- The Small Observed Baryon Asymmetry from a Large Lepton Asymmetry
- Baryogenesis from axion inflation
- Relic density of neutrinos with primordial asymmetries
- Naturally Large Cosmological Neutrino Asymmetries in the MSSM
- Cosmological lepton asymmetry with a nonzero mixing angle θ_{13}
- Spontaneous baryogenesis in flat directions
- A remark on sphaleron erasure of baryon asymmetry
- Laminar and turbulent dynamos in chiral magnetohydrodynamics. II. Simulations
- Constraining the cosmic radiation density due to lepton number with Big Bang Nucleosynthesis
- Lepto-Axiogenesis
- Improved constraints on lepton asymmetry from the cosmic microwave background
- Big Bang Nucleosynthesis constraints on sterile neutrino and lepton asymmetry of the Universe
- Indications for a Nonzero Lepton Asymmetry from Extremely Metal-Poor Galaxies
- Big Bang Nucleosynthesis and Lepton Number Asymmetry in the Universe
- Primordial lepton asymmetries in the precision cosmology era: Current status and future sensitivities from BBN and the CMB
- Flavor versus mass eigenstates in neutrino asymmetries: implications for cosmology
- Generation of cosmological large lepton asymmetry from a rolling scalar field
- Lepton Asymmetric Universe
- Primordial neutrino asymmetry evolution with full mean-field effects and collisions
- Baryogenesis from an Earlier Phase Transition
- Return of the grand unified theory baryogenesis: Source of helical hypermagnetic fields for the baryon asymmetry of the universe
- Updating non-standard neutrinos properties with Planck-CMB data and full-shape analysis of BOSS and eBOSS galaxies
- Hubble tension in lepton asymmetric cosmology with an extra radiation
- Wash-in leptogenesis after axion inflation
- Do neutrino flavor oscillations forbid large lepton asymmetry of the universe ?
- Baryon isocurvature constraints on the primordial hypermagnetic fields
- Leptoflavorgenesis: baryon asymmetry of the Universe from lepton flavor violation
- Large Lepton Asymmetry for Small Baryon Asymmetry and Warm Dark Matter
- Energetics of turbulence generated by chiral MHD dynamos
- Relic Neutrino Degeneracies and Their Impact on Cosmological Parameters
- Cosmic perturbations, baryon asymmetry and dark matter from the minimal supersymmetric standard model
Cited by in corpus (8)
- Constraints on primordial lepton asymmetries with full neutrino transport
- Large Neutrino Asymmetry from TeV Scale Leptogenesis
- Lepton Flavor Asymmetries: from the early Universe to BBN
- Pseudo-Dirac Neutrinos and Relic Neutrino Matter Effect on the High-energy Neutrino Flavor Composition
- Relic Gravitational Waves from the Chiral Plasma Instability in the Standard Cosmological Model
- A lower bound on the right-handed neutrino mass from wash-in leptogenesis
- A trial to understand the supersymmetry relations through extension of the second quantized fermion and boson fields, either to strings or to odd dimensional spaces
- Constraints on the lepton asymmetry from DESI DR2 BAO data