Abstract
We calculate the one-loop squared contributions to the next-to-next-to-leading order radiative QCD corrections for the production of heavy quark pairs in the collisions of unpolarized on-shell photons. In particular, we present analytical results for the squared matrix elements that correspond to the product of the one-loop amplitudes. All results of the perturbative calculation are given in the dimensional regularization scheme. These results represent the Abelian part of the corresponding gluon-induced next-to-next-to-leading order cross section for heavy quark pair hadroproduction.
- Received 26 August 2006
DOI:https://doi.org/10.1103/PhysRevD.74.094006
©2006 American Physical Society