Publication
Title
Study of prompt photon production in hadronic z(0) decays
Author
Abstract
From a sample of 1.5 million Z(0) --> decays collected by the DELPHI detector during 1991, 1992 and 1993, the production cross section for isolated final state photons is measured and is compared with the O(alpha, alpha(s)) matrix element calculations implemented in the EEPRAD and GNJETS Monte Carlo generators. The observed photon yield is used to derive the electroweak couplings of charge 2/3 (u-type) and charge 1/3 (d-type) quarks to the Z(0) boson. The measured values C-2/3 = 0.91(-0.36)(+0.25) and c(1/3) = 1.62(-0.17)(+0.24) are compatible with the Standard Model prediction, C-2/3 = 1.145 and c(1/3) = 1.477.
Language
English
Source (journal)
Zeitschrift für Physik : C : particles and fields. - Berlin
Publication
Berlin : 1995
ISSN
0170-9739
Volume/pages
69:1, p. 1-13
ISI
A1995TH55900001
Full text (Publisher's DOI)
UAntwerpen
Publication type
Subject
External links
Web of Science
Record
Identification
Creation 29.02.2012
Last edited 11.09.2017