Seesaw Mechanism in Warped Geometry

Details Seesaw Mechanism in Warped Geometry Seesaw Mechanism in Warped Geometry

2003-09-22

arxiv.org/abs/hep-ph/0309252v2

Phys.Lett.B583:293-303,2004

Physics

High Energy Physics

High Energy Physics - Phenomenology

14 pages, LaTeX, 4 figures, references added

Scientific paper

10.1016/j.physletb.2003.12.012

We show how the seesaw mechanism for neutrino masses can be realized within a five dimensional (5D) warped geometry framework. Intermediate scale standard model (SM) singlet neutrino masses, needed to explain the atmospheric and solar neutrino oscillations, are shown to be proportional to M_Pl\exp((2c-1)\pi kR), where c denotes the coefficient of the 5D Dirac mass term for the singlet neutrino which also has a Planck scale Majorana mass localized on the Planck-brane, and kR~11 in order to resolve the gauge hierarchy problem. The case with a bulk 5D Majorana mass term for the singlet neutrino is briefly discussed.

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