Search for second-generation leptoquark pairs in ¯pp collisions at √s=1.8TeV

D0 Collaboration

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34 Citations (Scopus)

Abstract

We have searched for second-generation leptoquark (LQ) pairs in the μμ+jets channel using 94 ±5pb−1 of ¯pp collider data collected by the D0 experiment at the Fermilab Tevatron during 1993–1996. No evidence for a signal is observed. These results are combined with those from the μν+jets and νν+jets channels to obtain 95% confidence level (C.L.) upper limits on the LQ pair production cross section as a function of mass and β, the branching fraction of a LQ decay into a charged lepton and a quark. Lower limits of 200(180)GeV/c2 for β=1(1/2) are set at the 95% C.L. on the mass of scalar LQ. Mass limits are also set on vector leptoquarks as a function of β.

Original languageEnglish
Pages (from-to)2088-2093
Number of pages6
JournalPhysical review letters
Volume84
Issue number10
DOIs
Publication statusPublished - 2000

Bibliographical note

Funding Information:
We thank the Fermilab and collaborating institution staffs for contributions to this work, and acknowledge support from the Department of Energy and National Science Foundation (USA), Commissariat à L’Energie Atomique (France), Ministry for Science and Technology and Ministry for Atomic Energy (Russia), CAPES and CNPq (Brazil), Departments of Atomic Energy and Science and Education (India), Colciencias (Colombia), CONACyT (Mexico), Ministry of Education and KOSEF (Korea), CONICET and UBACyT (Argentina), and the A. P. Sloan Foundation.

ASJC Scopus subject areas

  • General Physics and Astronomy

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