Right-Handed Sneutrino Curvaton and non-Gaussianity - High Energy Physics - PhenomenologyReport as inadecuate




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Abstract: In this paper, we explore the parameter space for a Right-Handed RHsneutrino curvaton that can generate large non-Gaussianity without assuming anyparticular inflation sector. The mass of the RH sneutrino is suggested from adiscussion on the initial condition of the curvaton field. It is shown that asmall Yukawa coupling is generally required for a successful RH sneutrinocurvaton. However, the Yukawa coupling can be larger if we consider thebraneworld scenario. Some general discussion about the spectral index incurvaton scenario is also provided.



Author: Chia-Min Lin, Kingman Cheung

Source: https://arxiv.org/



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