Inflation With Realistic Supersymmetric SO(10)

Details Inflation With Realistic Supersymmetric SO(10) Inflation With Realistic Supersymmetric SO(10)

2005-04-06

arxiv.org/abs/hep-ph/0504044v2

Phys.Rev. D72 (2005) 063515

Physics

High Energy Physics

High Energy Physics - Phenomenology

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

Scientific paper

10.1103/PhysRevD.72.063515

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 $|dn_s/ d{\rm ln}k| \lapproxeq 10^{-3}$.

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