Abstract
We develop a model of sneutrino inflation that is charged under U(1)B−L gauge symmetry, in no-scale supergravity framework. The model provides an interesting modification of tribrid inflation. We impose U(1)R symmetry on the renormalizable level while allow Planck suppressed non-renormalizable operators that break R-symmetry. This plays a crucial role in realizing a Starobinsly-like inflation scenario from one hand. On the other hand it plays an essential role, as well as SUSY breaking effects, in deriving the tiny neutrino masses via TeV inverse seesaw mechanism. Thus, we provide an interpretation for the extremely small value of the μS mass parameter required for inverse seesaw mechanism. We discuss a reheating scenario and possible constraints on the model parameter space in connection to neutrino masses.
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Moursy, A. No-scale gauge non-singlet inflation inducing TeV scale inverse seesaw mechanism. J. High Energ. Phys. 2021, 208 (2021). https://doi.org/10.1007/JHEP10(2021)208
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DOI: https://doi.org/10.1007/JHEP10(2021)208