V-A Constraint on a Product of R-parity Violating Couplings

Details V-A Constraint on a Product of R-parity Violating Couplings V-A Constraint on a Product of R-parity Violating Couplings

1997-12-09

arxiv.org/abs/hep-ph/9712321v1

Phys.Lett. B427 (1998) 73-76

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages, REVTEX, no figures

Scientific paper

10.1016/S0370-2693(98)00322-0

We study in the framework of R-parity violating supersymmetric theories the effect of R-parity violation due to the operator L_i L_j \bar{E_k} on the (V-A) structure of the muon decay. The precisely measured muon decay parameters can constrain a product of R-parity violating couplings: |\lambda_{232}\lambda_{131}| < 0.022 at the 90% CL, which is complementary to the previous limits obtained by the e-\mu universality in \tau decay.

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