Photon-jet correlations in $pp$ and $p \bar p$ collisions

Understand

We compare results of the $k_t$-factorization approach and the next-to-leading order collinear-factorization approach for photon-jet correlations in $pp$ and $p \bar p$ collisions at RHIC and Tevatron energies.

• We discuss correlations in the azimuthal angle as well as in the two-dimensional space of transverse momentum of photon and jet.
• Different unintegrated parton distributions (UPDF) are included in the $k_t$-factorization approach.
• The results depend on UPDFs used.