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Search for anomalous production of multilepton events in p-pbar collisions at root s=1.96 TeV

Abulencia A.
•
Adelman J.
•
Affolder T.
altro
SANTI, Lorenzo Gianni
2007
  • journal article

Periodico
PHYSICAL REVIEW LETTERS
Abstract
We report a search for the anomalous production of events with multiple charged leptons in p (p) over bar collisions at root 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 (chi(0)(1)) and chargino (chi(+/-)(1)) particles. For one particular choice of model parameters, the limits are M(chi(0)(1))> 110 GeV/c(2) and M(chi(+/-)(1))> 203 GeV/c(2) at 95% confidence level; the variation of these mass limits with model parameters is presented.
DOI
10.1103/PhysRevLett.98.131804
WOS
WOS:000245331500022
Archivio
http://hdl.handle.net/11390/879875
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-34047113249
Diritti
metadata only access
Scopus© citazioni
19
Data di acquisizione
Jun 7, 2022
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Web of Science© citazioni
9
Data di acquisizione
Feb 28, 2024
Visualizzazioni
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Data di acquisizione
Apr 19, 2024
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