# First Measurement of the Production of a W Boson in Association with a Single Charm Quark in $p\bar{p}$ Collisions at $\sqrt{s}$=1.96 TeV

Abstract : We present the first measurement of the production cross section of a W boson with a single charm quark (c) in p-pbar collisions at sqrt(s)=1.96 TeV, using soft muon tagging of c jets. In a data sample of ~1.8 fb-1, recorded with the CDF II detector at the Fermilab Tevatron, we select events with W+1 or 2 jets. We use the charge correlation between the W and the muon from the semileptonic decay of a charm hadron to extract the Wc signal. We measure sigma_{Wc}(p_{Tc}>20 GeV/c, |\eta_c|<1.5)\times BR(W->\ell\nu) = 9.8+/-3.2 pb, in agreement with theoretical expectations.
Document type :
Journal articles

http://hal.in2p3.fr/in2p3-00189064
Contributor : Dominique Girod <>
Submitted on : Tuesday, November 20, 2007 - 9:23:01 AM
Last modification on : Wednesday, September 15, 2021 - 2:56:02 PM

### Citation

T. Aaltonen, J. Adelman, T. Akimoto, M.G. Albrow, B. Alvarez Gonzalez, et al.. First Measurement of the Production of a W Boson in Association with a Single Charm Quark in $p\bar{p}$ Collisions at $\sqrt{s}$=1.96 TeV. Physical Review Letters, American Physical Society, 2008, 100, pp.091803. ⟨10.1103/PhysRevLett.100.091803⟩. ⟨in2p3-00189064⟩

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