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


Autoria(s): Aaltonen, Timo; Mehtala, P.; Orava, R.; Maki, T.; Saarikko, H.; Osterberg, K.; CDF collaboration
Contribuinte(s)

University of Helsinki, Department of Physics

University of Helsinki, Department of Physics

University of Helsinki, Department of Physics

University of Helsinki, Helsinki Institute of Physics

University of Helsinki, Department of Physics

University of Helsinki, Department of Physics

Data(s)

2009

Resumo

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 sqrt(s) = 1.96 TeV ppbar 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}* BR(W->lnu,W->jets)+ sigma_{WZ}*BR(W->lnu,Z->jets)

Formato

9

Identificador

http://hdl.handle.net/10138/24399

1550-7998

Idioma(s)

eng

Publicador

American Physical Society

Relação

Physical Review D : Particles, Fields, Gravitation and Cosmology

Fonte

Aaltonen , T , Mehtala , P , Orava , R , Maki , T , Saarikko , H , Osterberg , K & CDF collaboration 2009 , ' Search for WW and WZ production in lepton plus jets final state at CDF ' Physical Review D : Particles, Fields, Gravitation and Cosmology , vol 79 , no. 11 , pp. 112011 . , 10.1103/PhysRevD.79.112011

Palavras-Chave #114 Physical sciences #hep-ex
Tipo

A1 Refereed journal article

info:eu-repo/semantics/article