Properties of photon plus two-jet events in [Formula presented] collisions at [Formula presented]
Journal
Physical Review D - Particles, Fields, Gravitation and Cosmology
Journal Volume
57
Journal Issue
1
Pages
67-77
Date Issued
1998
Author(s)
Abe, F. et al. (CDF Collaboration)
Abstract
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. © 1998 The American Physical Society.
SDGs
Type
journal article