Measurement of W+W- Production and Search for the Higgs Boson in pp Collisions at sqrt(s) = 7 TeV
Author:
- CMS CollaborationCCCMS Collaboration
Preprint
Abstract
A measurement of W^+W^- production in pp collisions at sqrt(s) = 7 TeV and a search for the Higgs boson are reported. The W^+W^- candidates are selected in events with two leptons, either electrons or muons. The measurement is performed using LHC data recorded with the CMS detector, corresponding to an integrated luminosity of 36 inverse picobarns. The pp to W^+W^- cross section is measured to be 41.1 +/- 15.3 (stat) +/- 5.8 (syst) +/- 4.5 (lumi) pb, consistent with the standard model prediction. Limits on WW gamma and WWZ anomalous triple gauge couplings are set. The search for the standard model Higgs boson in the W^+W^- decay mode does not reveal any evidence of excess above backgrounds. Limits are set on the production of the Higgs boson in the context of the standard model and in the presence of a sequential fourth family of fermions with high masses. In the latter context, a Higgs boson with mass between 144 and 207 GeV/c^2 is ruled out at 95% confidence level.Keywords
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This publication has 32 references indexed in Scilit:
- Measurements of inclusive W and Z cross sections in pp collisions at $ \sqrt {s} = 7 $ TeVJournal of High Energy Physics, 2011
- MCFM for the Tevatron and the LHCNuclear Physics B - Proceedings Supplements, 2010
- Review of Particle PhysicsJournal of Physics G: Nuclear and Particle Physics, 2010
- Transverse-momentum resummation and the spectrum of the Higgs boson at the LHCNuclear Physics B, 2006
- Reconstruction of electrons with the Gaussian-sum filter in the CMS tracker at the LHCJournal of Physics G: Nuclear and Particle Physics, 2005
- Improved measurement of the triple gauge-boson couplings γWW and ZWW in e+e− collisionsPhysics Letters B, 2005
- Measurement of triple-gauge-boson couplings of the W boson at LEPPhysics Letters B, 2004
- Geant4—a simulation toolkitNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2003
- Search for the Standard Model Higgs boson at LEPPhysics Letters B, 2003
- Incorporating systematic uncertainties into an upper limitNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1992