V-A Constraint on a Product of R-parity Violating Couplings
High Energy Physics - Phenomenology
2009-10-30 v1
Abstract
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.
Cite
@article{arxiv.hep-ph/9712321,
title = {V-A Constraint on a Product of R-parity Violating Couplings},
author = {Kingman Cheung and Ren-Jie Zhang},
journal= {arXiv preprint arXiv:hep-ph/9712321},
year = {2009}
}
Comments
8 pages, REVTEX, no figures