Inclusive χc and b-Quark production in pp collisions at √s=1.8 TeV

We report the full reconstruction of χ c mesons through the decay chain χ c → J/ψ γ, J/ψ→μ + m - , using data obtained at the Collider Detector at Fermilab in 2.6±0.2 pb -1 of pp collisions at √s=1.8 TeV. This exclusive χ c sample is used to measure the χ c -meson production cross section times branching fractions. We obtain σ×B=3.2±0.4(stat) -1.1 +1.2 (syst) nb for χ c mesons decaying to J/ψ with p T >6.0 GeV/c and pseudorapidity |η|<0.5