%X We present a measurement of sigma(p (p) over bar -> W)xB(W -> e nu) at root s=1.96 TeV, using electrons identified in the forward region (1.2 <|eta|< 2.8) of the CDF II detector, in 223 pb(-1) of data. We measure sigma xB=2796 +/- 13(stat)(-90)(+95)(syst)+/- 162(lum) pb. Combining this result with a previous CDF measurement obtained using electrons in the central region (|eta|less than or similar to 1), we present the first measurement of the ratio of central-electron to forward-electron W partial cross sections R-exp=0.925 +/- 0.006(stat)+/- 0.032(syst), consistent with theoretical predictions using Coordinated Theoretical-Experimental Project on QCD (CTEQ) and Martin-Roberts-Stirling-Thorne (MRST) parton distribution functions.
%D 2007
%O This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions.
%I AMERICAN PHYSICAL SOC
%V 98
%N 25
%J Physical Review Letters
%T First measurement of the ratio of central-electron to forward-electron W partial cross sections in p(p)over-bar collisions at root s=1.96 TeV
%L discovery131699
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%A I Volobouev
%A G Volpi
%A F Wuerthwein
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%A A Warburton
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%A CDF Collarboration
%K DRELL-YAN PROCESSES, ELECTROMAGNETIC CALORIMETER, PERTURBATIVE QCD, CDF EXPERIMENT, DETECTOR, TRACKING, TRIGGER