Lepton flavour violating pion decay pi^+ --> mu^- nu_μe^+ e^+ and the SU(3)_C X SU(3)_L X U(1) model
arXiv:hep-ph/9912304 · doi:10.1134/1.1344948
Abstract
In the framework of the minimal model, the lepton-flavour-violating decay $π^+ \ra μ^- ν_μe^+ e^+ $ is calculated without directly invoking lepton mixing. The branching ratio for this rare pion decay mode is found to be much smaller than the current experimental upper limit. Dropping out anomalous interactions, this result coincides with the previous calculation .
6 pages, 2 figures, Latex, axodraw.sty used, to be published in Phys. Atom. Nucl.