Search for leptoquarks in electron-photon scattering at √s ee up to 209 GeV at LEP

G Abbiendi; C Ainsley; PF Åkesson; G Alexander; J Allison; G Anagnostou; KJ Anderson; S Arcelli; S Asai; D Axen; G Azuelos; I Bailey; E Barberio; RJ Barlow; RJ Batley; P Bechtle; T Behnke; KW Bell; PJ Bell; G Bella; A Bellerive; G Benelli; S Bethke; O Biebel; IJ Bloodworm; O Boeriu; P Bock; J Böhme; D Bonacorsi; M Boutemeur; S Braibant; L Brigliadori; RM Brown; HJ Burckhart; J Cammin; S Campana; RK Carnegie; B Caron; AA Carter; JR Carter; CY Chang; DG Charlton; PEL Clarke; E Clay; I Cohen; J Couchman; A Csilling; M Cuffiani; S Dado; GM Dallavalle; S Dallison; A De Roeck; EA De Woif; P Dervan; K Desch; B Dienes; M Donkers; J Dubbert; E Duchovni; G Duckeck; IP Duerdoth; E Etzion; F Fabbri; L Feld; P Ferrari; F Fiedler; I Fleck; M Ford; A Frey; A Fürtjes; DI Futyan; P Gagnon; JW Gary; G Gaycken; C Geich-Gimbel; G Giacomelli; P Giacomelli; M Giunta; J Goldberg; K Graham; E Gross; J Grunhaus; M Gruwé; PO Günther; A Gupta; C Hajdu; M Hamann; GG Hanson; K Harder; A Harel; M Harin-Dirac; M Hauschild; J Hauschildt; CM Hawkes; R Hawkings; RJ Hemingways; C Hensel; G Herten; RD Heuer; JC Hill

Journal article

Search for leptoquarks in electron-photon scattering at √s ee up to 209 GeV at LEP

G Abbiendi, C Ainsley, PF Åkesson, G Alexander, J Allison, G Anagnostou, KJ Anderson, S Arcelli, S Asai, D Axen, G Azuelos, I Bailey, E Barberio, RJ Barlow, RJ Batley, P Bechtle, T Behnke, KW Bell, PJ Bell, G Bella Show all

Physics Letters Section B Nuclear Elementary Particle and High Energy Physics | Published : 2002

DOI: 10.1016/S0370-2693(01)01485-X

Abstract

Searches for first generation scalar and vector leptoquarks, and for squarks in R-parity violating SUSY models with the direct decay of the squark into Standard Model particles, have been performed using e+e∼ collisions collected with the OPAL detector at LEP at e+e∼ centre-of-mass energies between 189 and 209 GeV. No excess of events is found over the expectation from Standard Model background processes. Limits are computed on the leptoquark couplings for different values of the branching ratio to electron-quark final states. © 2002 Elsevier Science B.V. All rights reserved.