First Measurement of the Ratio of Central-Electron to Forward-Electron W Partial Cross Sections in pp Collisions at {radical}(s)=1.96 TeV
Journal Article
·
· Physical Review Letters
- University of Illinois, Urbana, Illinois 61801 (United States)
- Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637 (United States)
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.
- OSTI ID:
- 20953299
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 25 Vol. 98; ISSN 0031-9007; ISSN PRLTAO
- Country of Publication:
- United States
- Language:
- English
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