Topological search for the production of neutralinos and scalar particles

G Alexander; J Allison; N Altekamp; K Ametewee; KJ Anderson; S Anderson; S Arcelli; S Asa; D Axen; G Azuelos; AH Ball; E Barberio; RJ Barlow; R Bartoldus; JR Batley; G Beaudoin; J Bechtluft; C Beeston; T Behnke; AN Bell; KW Bell; G Bella; S Bentvelsen; P Berlich; S Bethke; O Biebel; V Blobel; IJ Bloodworth; JE Bloomer; P Bock; HM Bosch; M Boutemeur; BT Bouwens; S Braibant; P Bright-Thomas; RM Brown; HJ Burckhart; C Burgard; R Bürgin; P Capiluppi; RK Carnegie; AA Carter; JR Carter; CY Chang; C Charlesworth; DG Charlton; D Chrisman; SL Chu; PEL Clarke; I Cohen; JE Conboy; OC Cooke; M Cuffiani; S Dado; C Dallapiccola; GM Dallavalle; C Darling; S de Jong; LA del Pozo; MS Dixit; E do Couto e Silva; M Doucet; E Duchovni; G Duckeck; IP Duerdoth; JEG Edwards; PG Estabrooks; HG Evans; M Evans; F Fabbri; P Fath; F Fiedler; M Fierro; HM Fischer; R Folman; DG Fong; M Foucher; H Fukui; A Fürtjes; P Gagnon; A Gaidot; JW Gary; J Gascon; SM Gascon-Shotkin; NI Geddes; C Geich-Gimbel; SW Gensler; FX Gentit; T Geralis; G Giacomelli; P Giacomelli; R Giacomelli; V Gibson; WR Gibson; DM Gingrich; J Goldberg; MJ Goodrick; W Gorn; C Grandi; E Gross

Journal article

Topological search for the production of neutralinos and scalar particles

G Alexander, J Allison, N Altekamp, K Ametewee, KJ Anderson, S Anderson, S Arcelli, S Asa, D Axen, G Azuelos, AH Ball, E Barberio, RJ Barlow, R Bartoldus, JR Batley, G Beaudoin, J Bechtluft, C Beeston, T Behnke, AN Bell Show all

Physics Letters Section B Nuclear Elementary Particle and High Energy Physics | ELSEVIER | Published : 1996

DOI: 10.1016/0370-2693(96)00502-3

Abstract

A search for scalar particles and neutralinos such as those predicted by supersymmetric models has been performed using a data sample of 4.4 million hadronic Z0 decays recorded by the OPAL detector at the e+e- collider LEP. The production of such particles typically leads to event topologies consisting of an acoplanar pair of jets, or of a mono-jet, accompanied by sizeable missing energy owing to neutrinos and other undetectable neutral particles. Limits are obtained, at the 95% confidence level, on the masses and production rates of scalar particles produced in association with the Z0. Limits are also placed on neutralino production, for which an additional possible signature is also studie..

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