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Abulencia, A.; Budd, S.; Ciobanu, C. I.; Errede, D.; Errede, S.; Gerberich, H.; Grundler, U.; Junk, T. R.; Kraus, J.; Marino, C. P.; Pitts, K.; Rogers, E.; Taffard, A.; Veramendi, G.; Zhang, X.; Adelman, J.; Brubaker, E.; Fedorko, W. T.; Furic, I.; Grosso-Pilcher, C.
Physical review letters, 06/2007, Letnik: 98, Številka: 25Journal Article
We present a measurement of {sigma}(pp{yields}W)xB(W{yields}e{nu}) at {radical}(s)=1.96 TeV, using electrons identified in the forward region (1.2< vertical bar {eta} vertical bar <2.8) of the CDF II detector, in 223 pb{sup -1} of data. We measure {sigma}xB=2796{+-}13(stat){sub -90}{sup +95}(syst){+-}162(lum) pb. Combining this result with a previous CDF measurement obtained using electrons in the central region ( vertical bar {eta} vertical bar < or approx. 1), we present the first measurement of the ratio of central-electron to forward-electron W partial cross sections R{sub 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.
