Remote Inflation as hybrid-like sneutrino/MSSM inflation
نویسنده
چکیده
A new scenario of hybrid-like inflation is considered for sneutrino and MSSM fields. Contrary to the usual hybrid inflation model, the direct coupling between a trigger field and the sneutrino/MSSM inflaton field is not necessary for the scenario. The dissipation and the radiation from the sneutrino/MSSM inflaton can be written explicitly by using the Yukawa couplings. Remote inflation does not require the shift symmetry or cancellation in solving the η problem.
منابع مشابه
Generating curvature perturbations with or without MSSM flat directions
We consider instant preheating as the mechanism for generating the curvature perturbation at the end of chaotic inflation. Then we examine if inflation could be driven by a Minimal Supersymmetric Standard Model (MSSM) flat direction or a sneutrino. Our simple mechanism relaxes some serious constraints that appeared in past studies, making inflation driven by a MSSM flat direction or a sneutrino...
متن کاملGenerating curvature perturbations with MSSM flat directions
We consider the possibility that chaotic inflation is driven by a Minimal Supersymmetric Standard Model (MSSM) flat direction or a sneutrino. The discrepancy between our present study and past studies is in the mechanism for generating the curvature perturbations. We consider curvature perturbations generated by instant preheating at the end of inflation, instead of a conventional curvature per...
متن کاملSneutrino warm inflation in the minimal supersymmetric model
The model of RH neutrino fields coupled to the MSSM is shown to yield a large parameter regime of warm inflation. In the strong dissipative regime, it is shown that inflation, driven by a single sneutrino field, occurs with all field amplitudes below the Planck scale. Analysis is also made of leptogenesis, neutrino mass generation and gravitino constraints. A new warm inflation scenario is purp...
متن کاملSneutrino Hybrid Inflation
We review the scenario of sneutrino hybrid inflation, where one of the singlet sneutrinos, the superpartners of the right-handed neutrinos, plays the role of the inflaton. In a minimal model of sneutrino hybrid inflation, the spectral index is given by ns ≈ 1 + 2γ . With γ = 0.025± 0.01 constrained by WMAP, a running spectral index |dns/dlnk|≪ |γ| and a tensor-to-scalar ratio r ≪ γ2 are predict...
متن کاملRemote Inflation : Hybrid - like inflation without hybrid - type potential
A new scenario of hybrid-like inflation is considered without using hybridtype potential. Radiation raised continuously by a dissipating inflaton field causes symmetry restoration in a remote sector, and the false-vacuum energy of the remote sector dominates the energy density during inflation. Remote inflation is terminated when the temperature reaches the critical temperature, or when the slo...
متن کامل