A Precision Measurement of the Prompt Photon Cross Section in P{bar P} Collisions at (square Root)s

A Precision Measurement of the Prompt Photon Cross Section in P{bar P} Collisions at (square Root)s
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Total Pages: 13
Release: 1994
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A prompt photon cross section measurement from the CDF experiment at the Fermilab p{bar p} Collider is presented Detector and trigger upgrades, as well as six times the integrated luminosity compared with our previous publication, have contributed to a much more precise measurement and extended P{sub T} range. As before, the cross section agrees qualitatively with QCD calculations but has a steeper slope at low P{sub T}.

W Cross Section Measurement in the Electron Channel in Pp Collisions at [the Square Root of Sigma]

W Cross Section Measurement in the Electron Channel in Pp Collisions at [the Square Root of Sigma]
Author: Pieter Bruno Bart Everaerts
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Total Pages: 172
Release: 2011
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From March until November 2010 the Compact Muon Solenoid 36 pb-1 of pp collisions at [the square root of sigma]= 7 TeV. One of the first precision Model that can be performed with this data is the measurement cross section and the charge asymmetry in the cross section. measurements are performed in the electron decay channel. The experiment recorded tests of the Standard of the W-production In this thesis, both results obtained are: [sigma](W -> ev) = 10.48 ± 0.03(stat.) 0.15(syst.) ± 0.09(th.) ± 0.42(lumi.)nb [sigma](W+ -> e+v, U(W+ - ez) = 1.430 ± 0.008(stat.) ± 0.022(syst.) ± 0.029(th.) [sigma](W- ->e-v) The measurements agree with state-of-the-art NNLO QCD calculations with the latest parton distribution functions.