W + charm

Document(s) Web Page       Phys. Rev. Lett. 100, 091803 (2008)       hep-ex/0711.2901
Contact(s) Alice Bridgeman, Lucio Cerrito, Ulysses Grundler, Tony Liss, Xiaojian Zhang
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}(pT,c>20 GeV/c, |etac|<1.5) x BR(W->l\nu) = 9.8+/-3.2 pb, in agreement with theoretical expectations.
Comments Last Update: March 2008       Dataset: 1.8 fb-1
(*) Results from the top group