Publication
Title
Search for anomalous production of multilepton events in $p\overline{p}$ collisions at $\sqrt{s}$=1.96 TeV
Author
Institution/Organisation
CDF Collaboration
Abstract
 We report a search for the anomalous production of events with multiple charged leptons in pp̅ collisions at √s=1.96  TeV using a data sample corresponding to an integrated luminosity of 346  pb-1 collected by the CDF II detector at the Fermilab Tevatron. The search is divided into three-lepton and four-or-more-lepton data samples. We observe six events in the three-lepton sample and zero events in the ≥4-lepton sample. Both numbers of events are consistent with standard model background expectations. Within the framework of an R-parity-violating supergravity model, the results are interpreted as mass limits on the lightest neutralino (χ10) and chargino (χ1±) particles. For one particular choice of model parameters, the limits are M(χ10)>110  GeV/c2 and M(χ1±)>203   GeV/c2 at 95% confidence level; the variation of these mass limits with model parameters is presented.
Language
English
Source (journal)
Physical review letters. - New York, N.Y.
Publication
New York, N.Y. : 2007
ISSN
0031-9007
Volume/pages
98:13(2007), p. 131804,1-131804,7
ISI
000245331500022
Full text (Publisher's DOI)
Full text (open access)
UAntwerpen
 Faculty/Department Publication type Subject Affiliation Publications with a UAntwerp address