Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2003-03-28
Phys.Lett.B581:9-18,2004
Physics
High Energy Physics
High Energy Physics - Phenomenology
Discussion of thermal leptogenesis deferred. Two figures removed
Scientific paper
10.1016/j.physletb.2003.11.029
We reconsider the possibility that inflation was driven by a sneutrino - the scalar supersymmetric partner of a heavy singlet neutrino - in the minimal seesaw model of neutrino masses. We show that this model is consistent with data on the cosmic microwave background (CMB), including those from the WMAP satellite. We derive and implement the CMB constraints on sneutrino properties, calculate reheating and the cosmological baryon asymmetry arising via direct leptogenesis from sneutrino decays following sneutrino inflation, and relate them to light neutrino masses. We show that this scenario is compatible with a low reheating temperature that avoids the gravitino problem, and calculate its predictions for flavour-violating decays of charged leptons. We find that $\mu \to e \gamma$ should occur close to the present experimental upper limits, as might also $\tau \to \mu \gamma$.
Ellis John
Raidal Martti
Yanagida Takayuki
No associations
LandOfFree
Sneutrino Inflation in the Light of WMAP: Reheating, Leptogenesis and Flavour-Violating Lepton Decays 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 Inflation in the Light of WMAP: Reheating, Leptogenesis and Flavour-Violating Lepton Decays, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sneutrino Inflation in the Light of WMAP: Reheating, Leptogenesis and Flavour-Violating Lepton Decays will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-638956