Search for chargino-neutralino associated production at the fermilab tevatron collider

F. Abe, H. Akimoto, A. Akopian, M. G. Albrow, A. Amadon, S. R. Amendolia, D. Amidei, J. Antos, S. Aota, G. Apollinari, T. Arisawa, T. Asakawa, W. Ashmanskas, M. Atac, P. Azzi-Bacchetta, N. Bacchetta, S. Bagdasarov, M. W. Bailey, P. de Barbaro, A. Barbaro-GaltieriV. E. Barnes, B. A. Barnett, M. Barone, G. Bauer, T. Baumann, F. Bedeschi, S. Behrends, S. Belforte, G. Bellettini, J. Bellinger, D. Benjamin, J. Bensinger, A. Beretvas, J. P. Berge, J. Berryhill, S. Bertolucci, S. Bettelli, B. Bevensee, A. Bhatti, K. Biery, C. Bigongiari, M. Binkley, D. Bisello, R. E. Blair, C. Blocker, S. Blusk, A. Bodek, W. Bokhari, G. Bolla, D. Cronin-Hennessy, University of Toronto, Toronto M5S 1A7, Canada

Research output: Contribution to journalArticlepeer-review

38 Scopus citations

Abstract

We have searched in pp collisions at √s=1.8TeV for events with three charged leptons and missing transverse energy. In the minimal supersymmetric standard model, we expect trilepton events from chargino-neutralino (√± 10 2) pair production, with subsequent decay into leptons. We observe no candidate e+e-e±, e+e-μ±, e±μ+μ-, or μ+μ-μ± events in 106pb-1 integrated luminosity. We present limits on the sum of the branching ratios times cross section for the four channels: σσ ± 1χ0 2B(χ± 1χ0 2→3ℓ+X)<0.34pb, Mχ ± 1 χ81.5GeV/c2, and Mχ 0 2 >82.2GeV/c2 for tan >=2, μ=-600GeV/c2, and Mq=Mg.

Original languageEnglish (US)
Pages (from-to)2650-2654
Number of pages5
JournalPhysical review letters
Volume80
Issue number13
DOIs
StatePublished - 1998

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