Supersymmetry Protects the Primordial Baryon Asymmetry
arXiv:hep-ph/9204205 · doi:10.1016/0370-2693(92)90017-X
Abstract
It has been argued that any primordial B+L asymmetry existing at very high temperatures can be subsequently erased by anomalous electroweak effects. We argue that this is not necessarily the case in the supersymmetric standard model because, apart from B and/or L, there are, above a certain temperature , two other anomalous U(1) currents. As a consequence, anomalous electroweak effects are only able to partially transform a B+L excess into a generation of primordial sparticle (e.g. gaugino) density. This relaxes recent bounds on B,L-violating non-renormalizable couplings by several orders of magnitude. In particular, dimension-5 couplings inducing neutrino masses may be 4 orders of magnitude larger than in the non-supersymmetric case, allowing for neutrino masses of the order of 10 eV. These values are consistent with a MSW+see-saw explanation of the solar-neutrino data and also with possible neutrino oscillations measurable at accelerators. Cosmological bounds on other rare processes, such as neutron-antineutron oscillations get also relaxed by several orders of magnitude compared with previous estimates.
arXiv comment(15 pages)
Cited by in corpus (51)
- Primordial Magnetic Fields, Right Electrons, and the Abelian Anomaly
- The Magnetized Universe
- Primordial Hypermagnetic Fields and Triangle Anomaly
- Baryon Asymmetry, Neutrino Mixing and Supersymmetric SO(10) Unification
- Protecting the Primordial Baryon Asymmetry From Erasure by Sphalerons
- Inflation, Neutrino Baryogenesis, and (S)Neutrino-Induced Baryogenesis
- Leptogenesis in the Universe
- Supersymmetric Inflation With Constraints on Superheavy Neutrino Masses
- R-Symmetry in the Minimal Supersymmetric Standard Model and Beyond with Several Consequences
- Large-Volume String Compactifications, Revisited
- Supersymmetric And Smooth Hybrid Inflation In The Light Of WMAP3
- On the Erasure and Regeneration of the Primordial Baryon Asymmetry by Sphalerons
- Probing Leptogenesis
- Primordial Hypermagnetic Knots
- Hypermagnetic Knots, Chern-Simons Waves and the Baryon Asymmetry
- Gravitino Decay in High Scale Supersymmetry with R-parity Violation
- Leptogenesis in Smooth Hybrid Inflation
- GUT Scale Inflation, Non-Thermal Leptogenesis, and Atmospheric Neutrino Oscillations
- Hierarchical Neutrinos and Supersymmetric Inflation
- Higgsogenesis
- Asymmetric Dark Matter Models in SO(10)
- Leptogenesis and dark matter unified in a non-SUSY model for neutrino masses
- Leptogenesis from Soft Supersymmetry Breaking (Soft Leptogenesis)
- Sphaleron relaxation temperatures
- Supersymmetric Leptogenesis
- Nonthermal production of baryon and dark matter
- Supersymmetric Inflation, Baryogenesis and ν_μ - ν_τ Oscillations
- Hypercharge and the Cosmological Baryon Asymmetry
- The Effect of the Sparticle Mass Spectrum on the Conversion of B-L to B
- Amplification of hypercharge electromagnetic fields by a cosmological pseudoscalar
- Atmospheric Neutrino Anomaly and Supersymmetric Inflation
- Lepton Flavor Equilibration and Leptogenesis
- Leptogenesis through direct inflaton decay to light particles
- Baryogenesis from Symmetry Principle
- Constraints on Majoron Models, Neutrino Masses and Baryogenesis
- Degenerate Neutrinos and Supersymmetric Inflation
- Early Universe effective theories: The Soft Leptogenesis and R-Genesis Cases
- Non-thermal leptogenesis via direct inflaton decay without SU(2)(L) triplets
- Dark world and baryon asymmetry from a common source
- Four-jet Signal at LEP2 and Supersymmetry
- Inflation, Leptogenesis, and Yukawa Quasi-Unification within a Supersymmetric Left-Right Model
- Knot soliton in Weinberg-Salam model
- Can Inflation Induce Supersymmetry Breaking in a Metastable Vacuum?
- Baryogenesis in the Standard Model and its Supersymmetric Extension
- Limits on -parity Violation in High Scale Supersymmetry
- -term as the origin of baryon and lepton number asymmetry
- Primordial Baryon Asymmetry and Sphalerons
- Big Bang Baryogenesis
- Baryon Asymmetry, Supersymmetry and Gravitational Anomalies
- Neutrino Masses and Mixing from Supersymmetric Inflation
- Supersymmetric Baryogenesis in a Hybrid Inflation Model