Faithin Omaha eBook Collection

Download or read book The Study of WGamma Production at D0 written by and published by . This book was released on 2007 with total page 293 pages. Available in PDF, EPUB and Kindle. Book excerpt: W[gamma] production is analyzed in the electron and muon decay channels with approximately 1 fb−1 of data from p{bar p} collisions that were produced at a center-of-mass energy of √s = 1.96 TeV and that were collected by the D0 detector at the Fermilab Tevatron collider. The inclusive p{bar p} → l[nu][gamma] cross section is measured in both channels and is found to be consistent with the Standard Model expectation of 2.08 ± 0.05{sub PDF} pb for events with a photon E{sub T} > 11 GeV, [Delta]R{sub l{sub [gamma]}} > 0.7, and {ell}[nu][gamma] transverse mass greater than 90 GeV . The observed cross section is measured to be 2.05 ± 0.18{sub stat} ± 0.10{sub sys} ± 0.13{sub lumi} pb and a.72 ± 0.19{sub stat} ± 0.15{sub sys} ± 0.10{sub lumi} pb for the electron and muon channels respectively. The photon E{sub T} spectrum is examined for indications of anomalous WW{gamma} couplings. No evidence is found, and the following one-dimensional limits are set at a 95% confidence level: -0.18