A simple model for particle physics and cosmology

Abstract

We propose a simple extension of the minimal supersymmetric standard model by introducing a gauge singlet in addition to right-handed neutrinos. The model resolves the strong CP problem by Pecci-Quinn symmetry, explains the origin of left-handed neutrino masses as well as MSSM $\mu$-parameter. It also gives rise to thermal inflation, baryogenesis and dark matter in a remarkably consistent way. Interestingly, resolution of moduli problem by thermal inflation constrains tightly axion coupling constant and flaton decay temperature to be $f_a \sim 10^{12} \GeV$ and $T_\mathrm{d} \sim 100 \MeV$, respectively. Model parameters in this case are likely to give right amount of baryon asymmetry and dark matter at present. The main component of dark matter is expected to be the axino whose mass is nearly fixed to be about $1 \GeV$.

20 pages, 1 figure; added footnotes and references for section 1 and 2, a footnote replaced with a new paragraph in section 2

References in corpus (28)

• Direct Evidence for Neutrino Flavor Transformation from Neutral-Current Interactions in the Sudbury Neutrino Observatory
• Reheating after Inflation
• Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Likelihoods and Parameters from the WMAP data
• Baryogenesis from Flat Directions of the Supersymmetric Standard Model
• Astrophysical Axion Bounds
• Model Independent Properties and Cosmological Implications of the Dilaton and Moduli Sectors of 4-d Strings
• Supersymmetry Breaking in the Early Universe
• Dynamics of Symmetry Breaking and Tachyonic Preheating
• The Soft Supersymmetry-Breaking Lagrangian: Theory and Applications
• The Strong CP Problem and Axions
• Axinos as Cold Dark Matter
• Strong Constraints on the Parameter Space of the MSSM from Charge and Color Breaking Minima
• Axinos as Dark Matter
• Cosmology with a TeV mass GUT Higgs
• Phenomenology of Mixed Modulus-Anomaly Mediation in Fluxed String Compactifications and Brane Models
• Flat directions in the scalar potential of the supersymmetric standard model
• Axion String Constraints
• Cosmological Implications of Radiatively Generated Axion Scale
• Cosmological mass limits on neutrinos, axions, and other light particles
• Gravitino, Axino, Kaluza-Klein Graviton Warm and Mixed Dark Matter and Reionisation
• Cosmological constraints on neutrino plus axion hot dark matter: Update after WMAP-5
• Modular Cosmology, Thermal Inflation, Baryogenesis and Predictions for Particle Accelerators
• Thermal inflation, baryogenesis and axions
• Thermal Inflation and the Gravitational Wave Background
• Preheating and Affleck-Dine leptogenesis after thermal inflation
• Thermal inflation and baryogenesis in heavy gravitino scenario
• Monopoles, Axions and Intermediate Mass Dark Matter
• Flaxino dark matter and stau decay

Cited by in corpus (13)

• Axions : Theory and Cosmological Role
• Dynamics of oscillating scalar field in thermal environment
• The hybrid inflation waterfall and the primordial curvature perturbation
• Non-Minimal Sneutrino Inflation, Peccei-Quinn Phase Transition and non-Thermal Leptogenesis
• Peccei-Quinn extended gauge-mediation model with vector-like matter
• Scalar Trapping and Saxion Cosmology
• The mu-problem and axion in gauge mediation
• Domain Walls and Gravitational Waves after Thermal Inflation
• Non-Minimal Chaotic Inflation, Peccei-Quinn Phase Transition and non-Thermal Leptogenesis
• Cosmological moduli problem in large volume scenario and thermal inflation
• The mu problem and sneutrino inflation
• PQ-symmetry for a small Dirac neutrino mass, dark radiation and cosmic neutrinos
• Constraining Affleck-Dine Leptogenesis after Thermal Inflation