@misc{oai:sucra.repo.nii.ac.jp:00010499, author = {Koide, Yoshio and 佐藤, 丈}, month = {}, note = {http://arxiv.org/abs/hep-ph/0210188 | http://arxiv.org/abs/hep-ph/0210188, The radiatively induced neutrino mass matrix is investigated on the basis of an SU(5) SUSY model. In order to evade the proton decay, an ansatz based on a discrete symmetry Z_2 is assumed: although, at the unification scale, we have two types of superfields Ψ_) = 5^^-_L(±)+10_L(±), which are transformed as Ψ_→Ψ±_ under the discrete symmetry Z2, the particles Ψ_ are decouple after the SU(5) symmetry is broken, so that our quarks and leptons belong to Ψ_. The R-parityviolating terms for our quarks and leptons Ψ_ are basically forbidden under the symmetry Z_2. However, we assume that mixings between members of Ψ_ and those of Ψ_ are in part caused after SU(5) is broken. As a result, the R-parity-violating interactions are in part allowed, so that the neutrino masses are radiatively generated, while the proton decay due to the R-parity violating terms is still forbidden because the term d^c_Rd^c_RucR has z = -1., text, application/pdf}, title = {An SU(5) SUSY model with R parity violation and radiatively induced neutrino masses}, year = {2002}, yomi = {サトウ, ジョウ} }