Neutrino Physics in the Seesaw Model

Details Neutrino Physics in the Seesaw Model Neutrino Physics in the Seesaw Model

2003-07-04

arxiv.org/abs/hep-ph/0307058v1

Nucl.Phys.B672:163-198,2003

Physics

High Energy Physics

High Energy Physics - Phenomenology

37 pages

Scientific paper

10.1016/j.nuclphysb.2003.09.011

The seesaw model of heavy and light Majorana neutrinos and its low-energy effective theory are studied, when the number of heavy neutrinos is equal to or less than the number of light lepton generations. We establish a general relationship between the high-energy parameters and the low-energy observables involving only the light fields. It is shown how low-energy measurements of the properties of light neutrinos suffice a priori to determine all couplings of the unobserved heavy neutrinos. CP violation is present in low-energy processes if seesaw-model leptogenesis creates the matter-antimatter asymmetry of the universe.

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