Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1995-11-11
Phys.Lett.B374:131-137,1996
Physics
High Energy Physics
High Energy Physics - Phenomenology
14 pages, LaTeX, Three figures included using uufiles. A postscript version is available at ftp://ftp.ifae.es/preprint/ft/uabf
Scientific paper
10.1016/0370-2693(96)00154-2
We consider the effect of complex Higgs triplets on purely leptonic processes and survey the experimental constraints on the mass and couplings of their single and double charge members. Present day experiments tolerate values of the Yukawa couplings of these scalars at the level of the standard electroweak gauge couplings. We show that the proposed measurement of the ratio $R_{LCD}=\sigma (\nu_{\mu}e)/ [\sigma (\bb\nu_{\mu}e) + \sigma (\nu_e e )]$ would allow to explore a large region of the parameter space inaccessible to the usual ratio $R=\sigma (\nu_{\mu}e)/\sigma (\bb\nu_{\mu}e)$.
Coarasa Jose Antonio
Méndez Abel
Sola Joan
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