1301.6515 (N. P. Zotov et al.)

Associated photon and heavy quark production at high energy within
k_T-factorization    [PDF]

N. P. Zotov, A. V. Lipatov, M. A. Malyshev

In the framework of the k_T-factorization approach, the production of prompt photons in association with a heavy (charm or beauty) quarks at high energies is studied. The consideration is based on the O(\alpha \alpha_s^2) off-shell amplitudes of gluon-gluon fusion and quark-(anti)quark interaction subprocesses. The unintegrated parton densities in a proton are determined using the Kimber-Martin-Ryskin prescription. Our numerical predictions are compared with the D0 and CDF experimental data. Also we extend our results to LHC energies.

View original: http://arxiv.org/abs/1301.6515