Sneutrino Hybrid Inflation in Supergravity

Details Sneutrino Hybrid Inflation in Supergravity Sneutrino Hybrid Inflation in Supergravity

2004-11-22

arxiv.org/abs/hep-ph/0411298v3

Phys.Rev.D71:083519,2005

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages; minor corrections; version to appear in Phys. Rev. D

Scientific paper

10.1103/PhysRevD.71.083519

We propose a hybrid inflation scenario in which the singlet sneutrino, the superpartner of the right-handed neutrino, plays the role of the inflaton. We study a minimal model of sneutrino hybrid inflation in supergravity, where we find a spectral index $n_s \approx 1 + 2 \gamma$ with $|\gamma| \lesssim 0.02$, and predict a running spectral index $|d n_s/d\ln k| \ll |\gamma|$ and a tensor-to-scalar ratio $r \ll \gamma^2$ for field values well below the Planck scale. In our scenario, the baryon asymmetry of our universe can be explained via non-thermal leptogenesis and a low reheat temperature $T_{RH} \approx 10^{6}$ GeV can be realized.

Affiliated with

Also associated with

No associations

Rating

Sneutrino Hybrid Inflation in Supergravity does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Sneutrino Hybrid Inflation in Supergravity, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sneutrino Hybrid Inflation in Supergravity will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-168098