# First Measurement of the Ratio of Central-Electron to Forward-Electron W Partial Cross Sections in $p\bar{p}$ Collisions at $\sqrt{s}$ = 1.96 TeV

Abstract : We present a measurement of sigma(p-pbar -> W) x B(W->enu) at sqrt{s}=1.96 TeV, using electrons identified in the forward region (1.2 <|eta|<2.8) of the CDF II detector. The data correspond to an integrated luminosity of 223 pb-1. We measure sigma x 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 (|eta|<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 CTEQ and MRST parton distribution functions.
Document type :
Journal articles

http://hal.in2p3.fr/in2p3-00133621
Contributor : Dominique Girod <>
Submitted on : Tuesday, February 27, 2007 - 10:29:10 AM
Last modification on : Wednesday, May 27, 2020 - 7:20:03 PM

### Citation

A. Abulencia, J. Adelman, T. Affolder, T. Akimoto, M.G. Albrow, et al.. First Measurement of the Ratio of Central-Electron to Forward-Electron W Partial Cross Sections in $p\bar{p}$ Collisions at $\sqrt{s}$ = 1.96 TeV. Physical Review Letters, American Physical Society, 2007, 98, pp.251801. ⟨10.1103/PhysRevLett.98.251801⟩. ⟨in2p3-00133621⟩

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