Abstract
We report a search for the anomalous production of events with multiple charged leptons in collisions at using a data sample corresponding to an integrated luminosity of 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 -lepton sample. Both numbers of events are consistent with standard model background expectations. Within the framework of an -parity-violating supergravity model, the results are interpreted as mass limits on the lightest neutralino () and chargino () particles. For one particular choice of model parameters, the limits are and at 95% confidence level; the variation of these mass limits with model parameters is presented.
- Received 16 December 2006
DOI:https://doi.org/10.1103/PhysRevLett.98.131804
©2007 American Physical Society