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Search for first-generation scalar leptoquarks in p[overline p] collisions at sqrt(s)=1.96 TeV

DO Collaboration, The and Bertram, Iain A. and Borissov, Guennadi V. and Ratoff, Peter N. and Sopczak, Andre (2005) Search for first-generation scalar leptoquarks in p[overline p] collisions at sqrt(s)=1.96 TeV. Physical Review D, 71 (7). 071104. ISSN 1550-7998

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Abstract

We report on a search for pair production of first-generation scalar leptoquarks (LQ) in p[overline p] collisions at sqrt(s)=1.96 TeV using an integrated luminosity of 252 pb-1 collected at the Fermilab Tevatron collider by the D0 detector. We observe no evidence for LQ production in the topologies arising from LQ[overline LQ]-->eqeq and LQ[overline LQ]-->eqnuq, and derive 95% C.L. lower limits on the LQ mass as a function of beta, where beta is the branching fraction for LQ-->eq. The limits are 241 and 218 GeV/c2 for beta=1 and 0.5, respectively. These results are combined with those obtained by D0 at sqrt(s)=1.8 TeV, which increases these LQ mass limits to 256 and 234 GeV/c2.

Item Type: Article
Journal or Publication Title: Physical Review D
Additional Information: Author list is partial - see original article for full author list.
Uncontrolled Keywords: proton-proton inclusive interactions ; high-energy elementary particle interactions ; semileptonic decays ; elementary particle mass
Subjects: Q Science > QC Physics
Departments: Faculty of Science and Technology > Physics
ID Code: 10092
Deposited By: Ms Margaret Calder
Deposited On: 03 Jul 2008 18:17
Refereed?: Yes
Published?: Published
Last Modified: 26 Jul 2012 14:43
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/10092

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