[PDF] Top 20 Measurement of the W boson helicity in top quark decays at D0

... have the advantage that cos
 can be calculated for each lepton, thus providing two measurements per ...event. The presence of two neutrinos in the dilepton final state makes ... See full document

... with the SM values. We thank the staffs at Fermilab and collaborating insti- tutions, and acknowledge support from the DOE and NSF (USA); CEA and ...(Ireland); The Swedish Research ... See full document

... existence of non-zero couplings between the top quark and the neutral vector bosons can be inferred through the analysis of direct production of tt pairs in ... See full document

... colleagues in the CERN accelerator departments for the excellent perfor- mance of the LHC and thank the technical and administrative staffs at CERN and at other CMS ... See full document

... from the Marie-Curie program and the European Research Council and Horizon 2020 Grant, contract ...Union); the Leventis Foundation; the A. P. Sloan Foundation; the Alexander von ... See full document

... luminosity of 14.2 fb −1 at 8 TeV. FCNC t → qg/qg → t is searched for in the production of single top-quark events, since the corresponding decay is nearly ... See full document

... from the background yields used as input have been searched for. First, the analysis was repeated to mea- sure simultaneously the tZq and ttZ cross sections, in addition to determining ... See full document

... extension of the standard model (MSSM) requires the introduc- tion of two Higgs doublets in order that the superpotential can contain appropriate terms for giving masses to both ... See full document

... acknowledge the support of ANPCyT, Argentina; YerPhI, Armenia; ARC, Australia; BMWFW and FWF, Austria; ANAS, Azerbaijan; SSTC, Belarus; CNPq and FAPESP, Brazil; NSERC, NRC and CFI, Canada; CERN; CONICYT, ... See full document

... to W+jets events in which a b quark, a charm quark, or a light quark is produced in association with the W ...boson. The overall W+jets yield ... See full document

... colleagues in the CERN accelerator departments for the excellent performance of the LHC ...thank the technical and administrative staff at CERN and other CMS institutes, ... See full document

... backgrounds in the analysis. The POWHEG ...model the W-associated (tW) and s-channel single top quark background ...events. The tt, W boson in ... See full document

... testing the SM predictions at the electroweak scale, associated tW production is of interest because of its sensitivity to non-SM couplings of the Wtb vertex [12–16], ... See full document

... sonnel of the Worldwide LHC Computing Grid for delivering so effec- tively the computing infrastructure essential to our ...acknowledge the enduring support for the construction and ... See full document

... acknowledge the support of ANPCyT, Argentina; YerPhI, Armenia; ARC, Aus- tralia; BMWFW and FWF, Austria; ANAS, Azerbaijan; SSTC, Belarus; CNPq and FAPESP, Brazil; NSERC, NRC and CFI, Canada; CERN; CONICYT, ... See full document

... evidence of such BNV top-quark decays using ...1 of pp collision data at √ s = 8 TeV, collected in 2012 with the Compact Muon Solenoid (CMS) detector [20] at ... See full document

... production of single top quarks has been first observed by the D0 [1] and CDF [2] experiments at the ...processes: the t-channel exchange of a virtual W ... See full document

... between the ID and MS tracks of the soft muon is required. The same set of ID hit requirements [ 54 ] that is used for muon candidates from W -boson decays is ... See full document

... V. Zhukov, 34 ,f M. Ata, 35 J. Caudron, 35 E. Dietz-Laursonn, 35 D. Duchardt, 35 M. Erdmann, 35 R. Fischer, 35 A. Güth, 35 T. Hebbeker, 35 C. Heidemann, 35 K. Hoepfner, 35 D. Klingebiel, 35 S. Knutzen, 35 P. Kreuzer, 35 ... See full document

... and the component JES Eff1 each exhibit this ...outside of the ±1σ band when there are a large number of parameters being fitted, while the majority should fall within the ±1σ ... See full document