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Scientific article
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English

First Measurement of the Ratio of Central-Electron to Forward-Electron W Partial Cross Sections in pp Collisions at s√=1.96  TeV

ContributorsCDF Collaboration
Published inPhysical review letters, vol. 98, no. 25, 251801
Publication date2007
Abstract

We present a measurement of σ(pp→W)×B(W→eν) at s√=1.96  TeV, using electrons identified in the forward region (1.2<|η|<2.8) of the CDF II detector, in 223  pb−1 of data. We measure σ×B=2796±13(stat)+95−90(syst)±162(lum)  pb. Combining this result with a previous CDF measurement obtained using electrons in the central region (|η|≲1), we present the first measurement of the ratio of central-electron to forward-electron W partial cross sections Rexp=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.

Citation (ISO format)
CDF Collaboration. First Measurement of the Ratio of Central-Electron to Forward-Electron <em>W</em> Partial Cross Sections in <em>pp</em> Collisions at s√=1.96  TeV. In: Physical review letters, 2007, vol. 98, n° 25, p. 251801. doi: 10.1103/PhysRevLett.98.251801
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ISSN of the journal0031-9007
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