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Large Τ And Τ Neutrino Electric Dipole Moments In Models With Vectorlike Multiplets, Tarek Ibrahim, Pran Nath
Large Τ And Τ Neutrino Electric Dipole Moments In Models With Vectorlike Multiplets, Tarek Ibrahim, Pran Nath
Pran Nath
It is shown that the electric dipole moment of the τ lepton several orders of magnitude larger than predicted by the standard model can be generated from mixings in models with vectorlike mutiplets. The electric dipole moment (EDM) of the τ lepton arises from loops involving the exchange of the W, the charginos, the neutralinos, the sleptons, the mirror leptons, and the mirror sleptons. The EDM of the Dirac τ neutrino is also computed from loops involving the exchange of the W, the charginos, the mirror leptons, and the mirror sleptons. A numerical analysis is presented, and it is shown …
Slepton Flavor Nonuniversality, The Muon Electric Dipole Moment, And Its Proposed Sensitive Search At Brookhaven, Tarek Ibrahim, Pran Nath
Slepton Flavor Nonuniversality, The Muon Electric Dipole Moment, And Its Proposed Sensitive Search At Brookhaven, Tarek Ibrahim, Pran Nath
Pran Nath
We analyze the electric dipole moment of the electron (dₑ), of the neutron (dn), and of the muon (dμ), using the cancellation mechanism in the presence of nonuniversalities of the soft breaking parameters. It is shown that the nonuniversalities in the slepton sector produce a strong violation of the scaling relation dμ/dₑ≃mμ/mₑ in the cancellation region. An analysis of dₑ, d,n, and dμ under the constraints of the current experimental limits on dₑ and dn, and under the constraints of the recent Brookhaven result on gμ-2, shows that in the nonscaling region, dμ can be as large as (10⁻2⁴-10⁻23)ecm and …