UNIGE document Scientific Article
previous document  unige:38376  next document
add to browser collection
Title

Search for Anomalous Production of Multilepton Events in pp Collisions at s√=1.96  TeV

CollaborationWith : Campanelli, Mario / Clark, Allan Geoffrey / Donega, Mauro / Moed, Shulamit / Sfyrla, Anna / Vallecorsa, Sofia / Wu, Xin
Published in Physical Review Letters. 2007, vol. 98, no. 13, p. 131804
Abstract We report a search for the anomalous production of events with multiple charged leptons in pp 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 (χ˜01) and chargino (χ˜±1) particles. For one particular choice of model parameters, the limits are M(χ˜01)>110  GeV/c2 and M(χ˜±1)>203  GeV/c2 at 95% confidence level; the variation of these mass limits with model parameters is presented.
Identifiers
Full text
Structures
Citation
(ISO format)
CDF COLLABORATION. Search for Anomalous Production of Multilepton Events in pp Collisions at s√=1.96  TeV. In: Physical Review Letters, 2007, vol. 98, n° 13, p. 131804. https://archive-ouverte.unige.ch/unige:38376

244 hits

32 downloads

Update

Deposited on : 2014-07-01

Export document
Format :
Citation style :