title: Top quark jets as a probe of the constrained minimal supersymmetric standard model with a degenerate top squark and lightest supersymmetric particle.
abstract: The degenerate top squark next-to-lightest supersymmetric particle (NLSP) and neutralino (LSP) scenario is well motivated but hard to detect in the collider experiments. We propose a novel signature for detection of this scenario at the Large Hadron Collider and demonstrate its feasibility. In the constrained minimal supersymmetric standard model and top squark NLSP, gluinos are in general much heavier than the lighter top squark and, thus, it decays dominantly to high transverse momentum (p(T)) top-quark-top-squark pairs. We consider gluino pair production and study two high-p(T) top jets and missing energy as the signature of this scenario.
authors.affiliation: Department of Physics and Helsinki Institute of Physics, University of Helsinki, P.O. Box 64, Helsinki FIN-00014, Finland.
authors.forename: Kirtiman
authors.initials: K
authors.lastname: Ghosh
authors.affiliation: Department of Physics and Helsinki Institute of Physics, University of Helsinki, P.O. Box 64, Helsinki FIN-00014, Finland.
authors.forename: Katri
authors.initials: K
authors.lastname: Huitu
authors.affiliation: Faculty of Science, Theoretical High Energy Physics, IMAPP, Radboud University Nijmegen, Mailbox 79, P.O. Box 9010, NL-6500 GL Nijmegen, Netherlands.
authors.forename: Jari
authors.initials: J
authors.lastname: Laamanen
authors.affiliation: Department of Physics and Helsinki Institute of Physics, University of Helsinki, P.O. Box 64, Helsinki FIN-00014, Finland.
authors.forename: Lasse
authors.initials: L
authors.lastname: Leinonen