Direct Photon and Heavy Quark Jet Production at the LHC

Understand

The associated production of direct photons and heavy quarks at the LHC is presented.

• Predictions for the nuclear modification factor to the cross-section at ALICE are shown.
• It is demonstrated that this process is a great probe of the gluon and heavy quark nuclear PDFs, as over 80 % of its nPDF dependence at NLO comes from those nPDFs.
• Therefore measurements of this process will provide an excellent constraint on the gluon nPDF, and will distinguish between different nPDF sets currently out on the market.