Heavy Majorana neutrinos in e^-e^- collisions

Details Heavy Majorana neutrinos in e^-e^- collisions Heavy Majorana neutrinos in e^-e^- collisions

1996-12-12

arxiv.org/abs/hep-ph/9612340v1

eConf C960625 (1996) NEW149; Int.J.Mod.Phys. A13 (1998) 2363-2381

Physics

High Energy Physics

High Energy Physics - Phenomenology

18 pages with 7 postscript figures included, uses epsfig.sty

Scientific paper

10.1142/S0217751X98001153

We discuss the process $e^-e^- \to W^- W^-$ mediated by heavy Majorana neutrino exchange in the t- and u channel. In our model the cross section for this reaction is a function of the masses (m_N) of the heavy Majorana neutrinos and mixing parameters (U_{eN}) originating from mixing between the ordinary left-handed standard model neutrinos and additional singlet right-handed neutrino fields. Taking into account the standard model background and contraints from low energy measurements, we present discovery limits in the (m_N,U_{eN}^2) plane. We also discuss how to measure in principle the CP violating phases, i.e., the relative phases between the mixing parameters.

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