Lepton Flavor Violating Processes and Muon g−2 in the Minimal Supersymmetric SO(10) Model


In the recently proposed minimal supersymmetric SO(10) model, the neutrino Dirac Yukawa coupling matrix, together with all the other fermion mass matrices, is completely determined once free parameters in the model are appropriately fixed so as to accommodate the recent neutrino oscillation data. Using these unambiguous neutrino Dirac Yukawa couplings, we calculate the lepton flavor violating (LFV) processes and the muon g−2 assuming the minimal supergravity scenario. The resultant rates of the LFV processes are found to be large enough to well exceed the proposed future experimental bound, while the magnitude of the muon g−2 can be within the recent result of the Brookhaven E821 experiment. Furthermore, we find that there exists a parameter region which can simultaneously realize the neutralino cold dark matter abundance consistent with the recent Wilkinson microwave anisotropy probe data.

Neutrino mass and mixing, Unified theories and models of strong and electroweak interactions, Electroweak radiative corrections, Supersymmetric models