QCD CORRECTIONS TO THE PRODUCTION OF A HEAVY-QUARK PAIR PLUS A HARD PHOTON IN E(-) ANNIHILATION()E()

Authors
Citation
L. Magnea et E. Maina, QCD CORRECTIONS TO THE PRODUCTION OF A HEAVY-QUARK PAIR PLUS A HARD PHOTON IN E(-) ANNIHILATION()E(), Physics letters. Section B, 385(1-4), 1996, pp. 395-403
Citations number
33
Categorie Soggetti
Physics
Journal title
ISSN journal
03702693
Volume
385
Issue
1-4
Year of publication
1996
Pages
395 - 403
Database
ISI
SICI code
0370-2693(1996)385:1-4<395:QCTTPO>2.0.ZU;2-N
Abstract
We present complete results for the O(alpha(s)) corrections to the pro duction of a heavy quark pair plus a hard photon, in e(+)e(-) annihila tion, including both photon and Z intermediate states. Virtual correct ions are calculated analytically in 4 - 2 epsilon dimensions, together with the soft approximation to the real emission diagrams. After canc ellation of infrared divergences, real and virtual contributions are c ombined numerically to obtain the cross section for the production of two heavy quark jets plus a hard photon in next-to-leading order. The resulting fully differential cross section can be used to construct ar bitrary distributions with the desired experimental cuts.