Article (Published version) (303 Kb) - 
Free accessOther version: http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.98.251801
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unige:38403 
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First Measurement of the Ratio of Central-Electron to Forward-Electron W Partial Cross Sections in pp Collisions at s√=1.96 TeV |
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| Collaboration | With : Campanelli, Mario / Clark, Allan Geoffrey / Hamilton, Andrew / Lefevre, Régis / Moed, Shulamit / Sfyrla, Anna / Shreyber, Irina / Vallecorsa, Sofia / Wu, Xin | |
| Published in | Physical Review Letters. 2007, vol. 98, no. 25, p. 251801 | |
| 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. | |
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Article (Published version) (303 Kb) - Free access Other version: http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.98.251801 |
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| Structures | ||
| Citation (ISO format) | CDF COLLABORATION. First Measurement of the Ratio of Central-Electron to Forward-Electron W Partial Cross Sections in pp Collisions at s√=1.96 TeV. In: Physical Review Letters, 2007, vol. 98, n° 25, p. 251801. https://archive-ouverte.unige.ch/unige:38403 |
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