Eur. Phys. J. C 23, 503-511 (2002)
https://doi.org/10.1007/s100520200907

A NLO calculation of the large-p_T photon + photon → photon + jet cross section

¹ Laboratoire de Physique Théorique LPT, Université de Paris XI, Bâtiment 210, 91405 Orsay, France
² Laboratoire d'Annecy-Le-Vieux de Physique Théorique LAPTH, Chemin de Bellevue, B.P. 110, 74941 Annecy-le-Vieux, France
³ Department of Physics, University of Durham, Durham DH1 3LE, UK

Received: 18 December 2001
Revised: 21 January 2002
Published online: 22 February 2002

Abstract

We study the production of an isolated large-p_T photon as well as the production of an isolated prompt photon plus a jet in e⁺e^- collisions. Our results are obtained by a NLO Monte Carlo program of partonic event generator type. We discuss the possibilities to constrain the parton densities in the real photon and compare to preliminary OPAL data.