Publications [#332106] of Seog Oh

Papers Published

1. al, TAE, Cross section and heavy quark composition of gamma+ mu events produced in pp collisions, Physical Review, vol. D65 no. 1 (2002), pp. 012003, American Physical Society (APS) [doi]
   (last updated on 2026/01/20)

   Abstract:
   We present a measurement of the cross section and the first measurement of the heavy flavor content of associated direct photon 1 muon events produced in hadronic collisions. These measurements come from a sample of 1.8 TeV pp̅ collisions recorded with the Collider Detector at Fermilab. Quantum chromodynamics (QCD) predicts that these events are primarily due to the Compton scattering process cg→ γ+μ, with the final-state charm quark producing a muon. The cross section for events with a photon transverse momentum between 12 and 40 GeV/c is measured to be 46.8±6.3±7.5 pb, which is two standard deviations below the most recent theoretical calculation. A significant fraction of the events in the sample contain a final-state bottom quark. The ratio of charm to bottom production is measured to be 2.4±1.2, in good agreement with QCD models.