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Search for WW and WZ production in lepton plus jets final state at CDF

Aaltonen T.
•
Adelman J.
•
Akimoto T.
altro
SCURI, Fabrizio
2009
  • journal article

Periodico
PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY
Abstract
We present a search for WW and WZ production in final states that contain a charged lepton (electron or muon) and at least two jets, produced in root s = 1.96 TeV p (p) over bar collisions at the Fermilab Tevatron, using data corresponding to 1.2 fb(-1) of integrated luminosity collected with the CDF II detector. Diboson production in this decay channel has yet to be observed at hadron colliders due to the large single W plus jets background. An artificial neural network has been developed to increase signal sensitivity, as compared with an event selection based on conventional cuts. We set a 95% confidence level upper limit of sigma(WW) x BR(W -> l nu(l), W -> jets) + sigma(WZ) x BR(W -> l nu(l), Z -> jets) < 2.88 pb, which is consistent with the standard model next-to-leading-order cross section calculation for this decay channel of 2.09 +/- 0.12 pb.
DOI
10.1103/PhysRevD.79.112011
WOS
WOS:000267701300014
Archivio
http://hdl.handle.net/11390/879359
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-67649878769
Diritti
metadata only access
Scopus© citazioni
1
Data di acquisizione
Jun 14, 2022
Vedi dettagli
Web of Science© citazioni
1
Data di acquisizione
Mar 27, 2024
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