New backgrounds in trilepton, dilepton and dilepton plus tau jet SUSY signals at the tevatron

We determine the Tevatron's reach in supersymmetric parameter space in trilepton, like-sign dilepton, and dilepton plus tau-jet channels, taking all relevant backgrounds into account. We show results for the minimal supergravity model. With a standard set of cuts we find that the previously una...

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Bibliographic Details
Published in:Physics letters. B 1999-11, Vol.467 (3), p.225-231
Main Authors: Matchev, Konstantin T., Pierce, Damien M.
Format: Article
Language:English
Subjects:
Dileptons
Supersymmetry
Tevatron
Trileptons
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Summary:We determine the Tevatron's reach in supersymmetric parameter space in trilepton, like-sign dilepton, and dilepton plus tau-jet channels, taking all relevant backgrounds into account. We show results for the minimal supergravity model. With a standard set of cuts we find that the previously unaccounted for Wγ ∗ background is larger than all other backgrounds combined. We include cuts on the dilepton invariant mass and the W-boson transverse mass to reduce the Wγ ∗ background to a reasonable level. We optimize cuts at each point in supersymmetry parameter space in order to maximize signal-to-noise.
ISSN:0370-2693
1873-2445
DOI:10.1016/S0370-2693(99)01155-7