Inflation With Realistic Supersymmetric SO(10)

Abstract

We implement inflation within a realistic supersymmetric SO(10) model in which the doublet-triplet splitting is realized through the Dimopoulos-Wilczek mechanism, the MSSM $\mu$ problem is resolved, and higgsino mediated dimension five nucleon decay is heavily suppressed. The cosmologically unwanted topological defects are inflated away, and from $\delta T/T$, the $B-L$ breaking scale is estimated to be of order $10^{16}-10^{17}$ GeV. Including supergravity corrections, the scalar spectral index $n_s=0.99\pm 0.01$, with $|dn_s/ d{\rm ln}k| \lapproxeq 10^{-3}$.

1+18 pages, 3 figures, version to appear in Phys. Rev. D

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• The hybrid inflation waterfall and the primordial curvature perturbation
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• Minimal Supersymmetric Hybrid Inflation, Flipped SU(5) and Proton Decay
• Missing Partner Mechanism in SO(10) Grand Unification
• No scale SUGRA SO(10) derived Starobinsky Model of Inflation
• Probing Stochastic Gravitational Wave Background from $SU(5)\times U(1{)}_{\chi }$ Strings in Light of NANOGrav 15-Year Data
• Simplified Smooth Inflation with Observable Gravity Waves
• Shifted $\mu$-hybrid inflation, gravitino dark matter, and observable gravity waves
• SO(10)-GUT Coherent Baryogenesis
• Gravitational Waves, mu Term & Leptogenesis from B-L Higgs Inflation in Supergravity
• Bosonic condensates in realistic supersymmetric GUT cosmic strings
• Bosonic structure of realistic SO(10) SUSY cosmic strings
• Large tensor spectrum of BICEP2 in the natural SUSY hybrid model
• Pseudosmooth Tribrid Inflation
• Natural Hybrid Inflation Model with Large Non-Gaussianity
• Exploring primordial black holes and gravitational waves with R-symmetric GUT Higgs inflation
• Primordial gravitational wave of BICEP2 from dynamical double hybrid inflation
• Spectral Index and Non-Gaussianity in Supersymmetric Hybrid Inflation
• Is F-term hybrid inflation natural within minimal supersymmetric SO(10)?
• Decaying LSP in SO(10) GUT and PAMELA's Cosmic Positron
• Inflation With A Realistic SO(10) Model
• Proton Stability In Supersymmetric SU(5)
• Flat-Directions in Grand Unification With $U(1{)}_R$ Symmetry
• Naturalness-guided Gluino Mass Bound from the Minimal Mixed Mediation of SUSY Breaking
• Hybrid Inflation Exit through Tunneling
• PAMELA's cosmic positron from decaying LSP in SO(10) SUSY GUT
• Primordial black holes from D-parity breaking in SO(10) grand unified theory