Search for first generation scalar leptoquark pairs in pp collisions at √ s = 1.8 TeV

D0 Collaboration

Research output: Contribution to journalArticle

63 Scopus citations

Abstract

We have searched for first generation scalar leptoquark (LQ) pairs in the ev + jets channel using pp collider data (∫L dt ≈ 115pb-1) collected by the D0 experiment at the Fermilab Tevatron during 1992-1996. The analysis yields no candidate events. We combine the results with those from the ee + jets vv + jets channels to obtain 95% confidence level (C.L.) upper limits on the LQ pair production cross section as a function of mass and of β, the branching fraction to a charged lepton. Comparing with the next-to-leading order theory, we set 95% C.L. lower limits on the LQ mass of 225, 204, and 79 GeV/c2 for β = 1, 1/2, and 0, respectively.

Original languageEnglish (US)
Pages (from-to)2051-2056
Number of pages6
JournalPhysical review letters
Volume80
Issue number10
DOIs
StatePublished - 1998

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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