Low-energy variety of asymmetric SUSY flavor structure

Kenzo Inoue, Kentaro Kojima, Koichi Yoshioka

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2 Citations (Scopus)

Abstract

In this Letter we study the low-energy phenomenology and cosmological implications of supersymmetric grand unified theory with asymmetric flavor structure, which is suggested by the recent observation of fermion masses and mixing angles. The predictions of the scenario are rather dependent on a Yukawa parameter fixed by group-theoretical argument. A reduced value of the parameter gives a resolution to the sign problem of supersymmetric Higgs mass μ, with which the theory becomes simultaneously consistent with the experimental data of bottom/tau mass ratio, flavor-changing rare decay of bottom quark, and the muon anomalous magnetic moment. The relic abundance of the lightest superparticle as cold dark matter of the universe is also investigated in light of the three-years WMAP result. A new source of flavor violation is found in the D-term induced scalar masses, that is a distinctive signature of the generation asymmetry.

Original languageEnglish
Pages (from-to)172-178
Number of pages7
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume644
Issue number2-3
DOIs
Publication statusPublished - Jan 11 2007

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All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

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