Inclusive Search for New Physics with Like-Sign Dilepton Events in ppbar Collisions at sqrt{s} = 1.96 TeV

Abstract

We describe a search for anomalous production of events with two leptons ($e$ or $\mu$) of the same electric charge in \ppbar collisions at a center-of-mass energy of 1.96 TeV. Many extensions to the standard model predict the production of two leptons of the same electric charge. This search has a significant increase in sensitivity compared to earlier searches. Using a data sample corresponding to 1 \invfb of integrated luminosity recorded by the CDF II detector, we observe no significant excess in an inclusive selection (expect $33.2\pm 4.7$ events, observe 44) or in a SUSY-optimized selection (expect $7.8\pm 1.1$ events, observe 13.)

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References in corpus (3)

• PYTHIA 6.4 Physics and Manual
• Signatures for Majorana neutrinos at hadron colliders
• Search for associated Higgs boson production WH->WWW*->l+-nu l'+-nu'+X in p-pbar collisions at sqrt(s)=1.96 TeV

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