GNJETS

A Monte Carlo Program for Final-State Photon Radiation

in Electron-Positron Annihilation

GNEJTS is an event generator for final state photons in hadronic Z decays based on matrix element calculations including order alpha_s corrections. The program performs a Monte Carlo integration of the cross section for e+e- -> gamma + X on the basis of a matrix element calculation to order(alpha_s) of e+e- -> q qbar gamma and e+e- -> q qbar gluon gamma by G. Kramer, B. Lampe, DESY 91-78 and Phys.Lett.B269 (1991) 401; see also G. Kramer, B. Lampe, Fortschr.Phys.37 (1989) 161; G. Kramer, H. Spiesberger, DESY 92-022. The program can also be used as event generator.

Author: H. Spiesberger
Last Modification: June 1, 1992 by H. Spiesberger
Maintenance: H. Spiesberger

A short description of the program and its latest modifications
Present version, source code of GNJETS (g'zipped, 49K), version 2.3, June 1, 1992
Modified routines "ifchek" gnmap4_mod.f.gz, May 9, 1998

Please report experience, problems, suggestions, bugs to Hubert Spiesberger (hspiesb@mail.desy.de)

Constructed by HS