Neutrino Masses in the Composite Little Higgs Model

Details Neutrino Masses in the Composite Little Higgs Model Neutrino Masses in the Composite Little Higgs Model

2005-01-14

arxiv.org/abs/hep-ph/0501118v3

JHEP0506:060,2005

Physics

High Energy Physics

High Energy Physics - Phenomenology

17 pages, 4 figures; Changed contents;v3 corrected typos, to appear in JHEP

Scientific paper

10.1088/1126-6708/2005/06/060

The composite little Higgs model, a UV completion for the $SU(5)/SO(5)$ little Higgs model, incorporates supersymmetry into strong gauge dynamics. We extend the study of flavor physics in the model, and find that it is similar to the bosonic technicolor model. Lepton flavor violations and neutrino mass matrix arise once R-parity violating superpotential is introduced to the model, as in the MSSM. We identify various low-energy effective $\Delta L=2$ lepton flavor violating operators, and find that most of them are similar to those of the R-parity violating MSSM. There is a new operator which involves only leptons and the pseudo-Nambu Goldstone bosons of the little Higgs model. We further study a possibility that this operator gives a dominant contribution to the neutrino mass matrix.

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