Next-to-next-to-leading order O(α2αs2) results for top quark pair production in photon-photon collisions: The one-loop squared contributions

J. G. Körner, Z. Merebashvili, and M. Rogal
Phys. Rev. D 74, 094006 – Published 3 November 2006

Abstract

We calculate the one-loop squared contributions to the next-to-next-to-leading order O(α2αs2) 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.

  • Figure
  • Received 26 August 2006

DOI:https://doi.org/10.1103/PhysRevD.74.094006

©2006 American Physical Society

Authors & Affiliations

J. G. Körner1,*, Z. Merebashvili2,†, and M. Rogal3,‡

  • 1Institut für Physik, Johannes Gutenberg-Universität, D-55099 Mainz, Germany
  • 2Institute of High Energy Physics and Informatization, Tbilisi State University, 0186 Tbilisi, Georgia
  • 3Deutsches Elektronen-Synchrotron DESY, Platanenallee 6, D-15738 Zeuthen, Germany

  • *Electronic address: koerner@thep.physik.uni-mainz.de
  • Electronic address: zaza@thep.physik.uni-mainz.de
  • Electronic address: Mikhail.Rogal@desy.de

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 74, Iss. 9 — 1 November 2006

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review D

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×