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.

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 RID G-1087-2011 RID E-4473-2011

MORELLO, MICHAEL JOSEPH;
2007

Abstract

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.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11384/5050
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