F-term Induced Flavor Mass Spectrum

Details F-term Induced Flavor Mass Spectrum F-term Induced Flavor Mass Spectrum

2008-01-22

arxiv.org/abs/0801.3301v1

JHEP 0806:023,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, no figure

Scientific paper

10.1088/1126-6708/2008/06/023

New mechanism of generating flavor mass spectrum is proposed by using an O'Raifeartaigh-type supersymmetry breaking model. A desired bilinear form of fermion mass spectrum is naturally realized through F-components of gauge-singlet (nonet of SU(3) flavor symmetry) superfields, and the suitable charged-lepton mass relation is reproduced. The charged-slepton mass spectrum is non-degenerate in general, and can be even hierarchical (proportional to the charged-lepton masses in the specific case). Flavor changing neutral processes are suppressed since the charged-lepton and slepton (except for right-handed sneutrino) mass matrices are diagonalized simultaneously in the flavor space. The right-handed sneutrinos are light with the similar ratio to the lepton sector ($\tilde{m}_{\nu_R}$/$\tilde{m}_e \sim m_\nu$/$m_e$).

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