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Inflation With Realistic Supersymmetric SO(10)

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arxiv hep-ph/0504044 v2 pith:WJBVUQKA submitted 2005-04-06 hep-ph astro-ph

Inflation With Realistic Supersymmetric SO(10)

classification hep-ph astro-ph
keywords inflationrealisticsupersymmetricawaybreakingcorrectionscosmologicallydecay
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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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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