Inclusive search for new physics with like-sign dilepton events in pp̄ collisions at s=1.96TeV

Journal article

We describe a search for anomalous production of events with two leptons (e or μ) of the same electric charge in pp̄ 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 1fb-1 of integrated luminosity recorded by the CDF II detector, we observe no significant excess in an inclusive selection (expect 33.2±4.7 events, observe 44) or in a supersymmetry-optimized selection (expect 7.8±1.1 events, observe 13.) © 2007 The American Physical Society.

Authors: Abulencia, A; Adelman, J; Affolder, T; Akimoto, T; Albrow, MG

• Journal: Physical Review Letters
• Volume: 98
• Issue: 22
• Publication date: 2007-06-01
• DOI: 10.1103/PhysRevLett.98.221803
• EISSN: 1079-7114
• ISSN: 0031-9007
• Language: English