Parametrizing the Neutrino sector

Details Parametrizing the Neutrino sector Parametrizing the Neutrino sector

2011-11-07

arxiv.org/abs/1111.1588v1

Acta Physica Polonica B vol. 42 (2011) page 2407

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages; uses appolb.cls; submitted to the proceedings of "Matter to the Deepest: Recent Development in Physics of Fundamental

Scientific paper

10.5506/APhysPolB.42.2407

The original Standard Model has massless neutrinos, but the observation of neutrino oscillations requires that neutrinos are massive. The simple extension of adding gauge singlet fermions to the particle spectrum allows normal Yukawa mass terms for neutrinos. The seesaw mechanism then suggests an explanation for the observed smallness of the neutrino masses. After reviewing the framework of the seesaw we suggest a parametrization that directly exhibits the smallness of the mass ratios in the seesaw for an arbitrary number of singlet fermions and we present our plans to perform calculations for a process that might be studied at the LHC.

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