Abulencia, A;
Adelman, J;
Affolder, T;
Akimoto, T;
Albrow, MG;
Amerio, S;
Amidei, D;
... CDF Collarboration; + view all
(2007)
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.
Physical Review Letters
, 98
(25)
, Article 251801. 10.1103/PhysRevLett.98.251801.
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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.
| Type: | Article |
|---|---|
| Title: | 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 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.98.251801 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.98.251801 |
| Language: | English |
| Additional information: | This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | DRELL-YAN PROCESSES, ELECTROMAGNETIC CALORIMETER, PERTURBATIVE QCD, CDF EXPERIMENT, DETECTOR, TRACKING, TRIGGER |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/131699 |
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