Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2003-04-21
Phys.Rev.D68:033012,2003
Physics
High Energy Physics
High Energy Physics - Phenomenology
18 pages, 10 figures. The version to be published in Phys. Rev. D
Scientific paper
10.1103/PhysRevD.68.033012
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 this 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 by 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 WMAP data.
Fukuyama Takeshi
Kikuchi Tatsuru
Okada Nobuchika
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