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- W1949005516 abstract "The minimal supersymmetric (or F-term) hybrid inflation is defined by a unique renormalizable superpotential, fixed by a $U(1)$ R-symmetry, and it employs a canonical K{a}hler potential. The inflationary potential takes into account both radiative and supergravity corrections, as well as an important soft supersymmetry breaking term, with a mass coefficient in the range $(0.1 - 10)~{rm TeV}$. The latter term assists in obtaining a scalar spectral index $n_s$ close to $0.96$, as strongly suggested by the PLANCK and WMAP-9yr measurements. The minimal model predicts that the tensor-to-scalar $r$ is extremely tiny, of order $10^{-12}$, while the spectral index running, $|dn_{rm s}/dln k| sim 10^{-4}$. If inflation is associated with the breaking of a local $U(1)_{B-L}$ symmetry, the corresponding symmetry breaking scale $M$ is $(0.7 - 1.6)cdot10^{15}~{rm GeV}$ with $n_{rm s} simeq 0.96$. This scenario is compatible with the bounds on $M$ from cosmic strings, formed at the end of inflation from $B-L$ symmetry breaking. We briefly discuss non-thermal leptogenesis which is readily implemented in this class of models." @default.
- W1949005516 created "2016-06-24" @default.
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- W1949005516 date "2013-10-01" @default.
- W1949005516 modified "2023-09-27" @default.
- W1949005516 title "Update on minimal supersymmetric hybrid inflation in light of PLANCK" @default.
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- W1949005516 doi "https://doi.org/10.1016/j.physletb.2013.07.029" @default.
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