$μ\to e γ$ from Supersymmetry without R parity

Details $μ\to e γ$ from Supersymmetry without R parity $μ\to e γ$ from Supersymmetry without R parity

2001-01-31

arxiv.org/abs/hep-ph/0101347v2

Phys.Rev. D64 (2001) 095007

Physics

High Energy Physics

High Energy Physics - Phenomenology

36 pages Revtex with 10 eps- figure files incoporated; minor modifications with more results included in Table III and a compr

Scientific paper

10.1103/PhysRevD.64.095007

Starting from the new sources of $LL$- and $LR$- scalar (slepton) mixings due to R-parity violation, we discuss the structure of lepton-flavor violation focusing on the radiative decay of muon into electron. Using an optimal parametrization, we give the general formulae for the one-loop contributions. from which we discuss all combinations of R-parity violating parameters having possibly a substantial contribution to the $\mu \to e \gamma$ decay width. An exact numerical study is performed to obtain explicit bounds on the parameters under the present experimental limit. The most interesting one involves a combination of bilinear and trilinear couplings.

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