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Phys. Rev. D 77, 011108(R) (2008) [9 pages]

Measurement of the cross section for W-boson production in association with jets in pp̅ collisions at s=1.96  TeV

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T. Aaltonen et al. CDF Collaboration
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Received 26 November 2007; published 31 January 2008

We present a measurement of the cross section for W-boson production in association with jets in pp̅ collisions at s=1.96  TeV. The analysis uses a data sample corresponding to an integrated luminosity of 320  pb-1 collected with the CDF II detector. W bosons are identified in their electron decay channel and jets are reconstructed using a cone algorithm. For each W+≥n-jet sample (n=1-4) we measure the differential cross section dσ(pp̅ →W+≥n-jet)/dETnth-jet×B(Weν) with respect to the transverse energy ET of the nth-highest ET jet above 20 GeV, and the total cross section σ(pp̅ →W+≥n-jet;ETnth-jet>25  GeV)×B(Weν), for a restricted Weν decay phase space. The cross sections, corrected for all detector effects, can be directly compared to particle level W+jet(s) predictions. We present here comparisons to leading order and next-to-leading order predictions.

© 2008 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevD.77.011108
DOI:
10.1103/PhysRevD.77.011108
PACS:
14.70.Fm, 12.38.Qk, 13.85.Ni, 13.87.Ce