Supersymmetric hybrid inflation with non-minimal coupling to gravity [CEA]

http://arxiv.org/abs/1705.05540


We have studied the paradigm of cosmic inflation using the simplest model based on the idea of supersymmetric hybrid inflation with non-minimal coupling to gravity, specially under the slow-roll approximation following the superconformal approach to supergravity. It is found that within certain ranges of values of the non-minimal coupling parameter $\xi$, the model can accommodate the inflation data reported by the BICEP2 experiment as well as the data on the upper limit of the tensor to scalar ratio $r$ set by the Planck collaboration. The fine tuning of the parameter $\xi$ with improve form of the model may lead to pinpoint the exact data of any cosmological observation on inflation. The derivations of the constrained equations for the running of the scalar spectral index $n_{sk}$ and its running $n_{skk}$ from our model prove the ingenuine mathematical structure of it. These equations can be used to test our model from the data of future cosmological observations.

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U. Goswami
Wed, 17 May 17
3/65

Comments: 11 pages, 6 figures