Properties of photon plus two-jet events in p¯p collisions at √s=1.8 TeV

CDF Collaboration

Research output: Contribution to journalArticlepeer-review

12 Scopus citations


We present the first general measurements (invariant-mass, transverse-energy, and angular distributions) of the process, (Formula presented) (Formula presented) using data collected by the CDF at Fermilab. We compare the data with predictions from a tree-level QCD calculation and the PYTHIA shower Monte Carlo program. Our data sample is particularly sensitive to contributions from initial- and final-state radiation of photons and jets. Using the PYTHIA Monte Carlo program, we contrast the kinematical distributions for direct photon production with those for initial- and final-state photon radiation (bremsstrahlung). Based on the angular distributions, we find that our data favor a mixture of bremsstrahlung and direct photon production, as predicted, over either process alone.

Original languageEnglish (US)
Pages (from-to)67-77
Number of pages11
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Issue number1
StatePublished - 1998
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)


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