https://doi.org/10.1051/epjconf/20136014006
DØ Results on Diphoton Direct Production and Photon + b and c Jet Production
Louisiana Tech University
a e-mail: sawyer@phys.latech.edu
In this note we present measurements of the direct photon pair production cross sections using 8.5 fb−1 of data collected with the DØ detector at the Fermilab Tevatron 
collider at √s = 1.96 TeV. The results are shown as differential distributions with respect to the photon pair mass, pair transverse momentum, azimuthal angle, and polar scattering angle in the Collins-Soper frame. We also present measurements of the differential cross section dσ/dpTγ for the inclusive production of a photon in association with a b- or c-quark jet. The results are based on 8.7 fb−1 of data, and the measured cross sections are compared with next-to-leading order perturbative QCD calculations using different sets of parton distribution functions as well as to predictions based on the kT-factorization QCD approach, and those from various Monte Carlo event generators.
© Owned by the authors, published by EDP Sciences, 2013
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 2.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
