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- W1570473683 abstract "The authors present a study of the p{bar p} {yields} W(Z){gamma} {yields} {gamma}q{bar q} process at the center-of-mass energy {radical}s = 1.96 TeV using data collected by the Collider Detector at Fermilab. The analysis is based on the selection of low transverse momentum photons produced in association with at least two jets. A modification of an existing photon trigger was studied and implemented in the data acquisition system to enhance the sensitivity of this analysis. The data presented are from approximately 184 pb{sup -1} of integrated luminosity collected by this new trigger. A preliminary event sample is obtained requiring a central photon with E{sub T} > 12 GeV and two jets with E{sub T} > 15 GeV. The corresponding efficiency is studied using a Monte Carlo simulation of the W(Z){gamma} {yields} {gamma}q{bar q} based on Standard Model predictions. Monte Carlo estimation of the background is not necessary as it is measured from the data. A more advanced selection based on a Neural Network method improves the signal-to-noise ratio from 1/333 to 1/71, and further optimization of the dijet mass search region increases the ratio to its final value of 1/41. No evidence of a W/Z {yields} q{bar q} peak inmore » the dijet mass distribution is visible when the background contribution is subtracted. Using a fully Bayesian approach, the 95% confidence level upper limit on {sigma}(p{bar p} {yields} W{gamma}) x {Beta}(W {yields} q{bar q}) + {sigma}(p{bar p} {yields} Z{gamma}) x {Beta}(Z {yields} q{bar q}) is calculated to be 54 pb, which is consistent with the Standard Model prediction of 20.5 pb.« less" @default.
- W1570473683 created "2016-06-24" @default.
- W1570473683 creator A5066647580 @default.
- W1570473683 date "2005-01-01" @default.
- W1570473683 modified "2023-10-17" @default.
- W1570473683 title "Search for (W/Z → jets) + γ Events in Proton-Antiproton Collisions at the Fermilab Tevatron" @default.
- W1570473683 doi "https://doi.org/10.2172/878940" @default.
- W1570473683 hasPublicationYear "2005" @default.
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