Sneutrino Inflation

Details Sneutrino Inflation Sneutrino Inflation

2004-03-23

arxiv.org/abs/hep-ph/0403247v1

Nucl.Phys.Proc.Suppl.137:190-205,2004

Physics

High Energy Physics

High Energy Physics - Phenomenology

16 pages, 10 figures, Invited talk at the Fujihara Seminar on Neutrino Mass and Seesaw Mechanism, KEK, Feb. 23-25, 2004

Scientific paper

10.1016/j.nuclphysbps.2004.10.07

The seesaw model of neutrinos might explain the size, age, flatness and near-homogeneity of the Universe via sneutrino inflation, as well as explaining the origin of matter via leptogenesis. The sneutrino inflation hypothesis makes specific, testable predictions for cosmic microwave background observables, which are compatible with the first release of data from WMAP, and for flavour-violating charged-lepton decays. In particular, mu -> e gamma should occur with a branching ratio very close to the present experimental upper limit, whilst tau -> mu gamma and e gamma should occur further below the present limits.

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