2007/10/31 by Mariana Frank, Katri Huitu, Santosh Kumar +1 · 2 citations
Physics and Astronomy · #Dark Matter and Cosmic Phenomena #Neutrino Physics Research #Particle physics theoretical and experimental studies #hep-ph
paper · pdf · doi:10.1103/physrevd.77.015006
published as Phys.Rev.D77:015006,2008 · Typos corrected, Journal Version
openalex publication_date 2008/01/11 · arxiv created 2008/01/14 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
Several extended supersymmetric models, motivated by either grand unification, or by neutrino mass generation, predict light doubly charged Higgsinos. We study the production of a single doubly charged Higgsino and its decay channels at the International Linear Collider (ILC) operating in the e^\ensuremath-e^\ensuremath- mode. We analyze the production cross section for e^\ensuremath-e^\ensuremath-\ensuremath→\stackrel\texttildelow\ensuremathΔL,R--\ensuremathχ10 as a function of different kinematic variables, followed by the decay, through several channels, of the doubly charged Higgsino into a final state of two leptons plus missing energy. We include the standard model background and discuss how kinematic cuts could be used effectively to limit this background. Single production of these exotics could provide a spectacular signal for a new underlying symmetry and for physics beyond the minimal supersymmetric standard model.