Constraining the Intrinsic Heavy Quark PDF via Direct Photon Production   in Association with a Heavy Quark Jet
  We investigate a possible use of direct photon production in association with a heavy quark to test different models of intrinsic heavy quark parton distribution function (PDF) at the Tevatron, at the large hadron collider (LHC) and at RHIC. 
K. Kovarik, T. Stavreva
hep-ph