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Manuscript Title: The Monte Carlo integration of cylindrical phase space with leading particles.
Authors: V. Vrba
Program title: GENEVE
Catalogue identifier: ABLI_v1_0
Distribution format: gz
Journal reference: Comput. Phys. Commun. 56(1989)165
Programming language: Fortran.
Computer: VAX/8700, IBM/7890.
Operating system: VMS, VM/CMS.
RAM: 5K words
Word size: 32
Keywords: Particle physics, Elementary, Phase space, Leading particles, Monte carlo methods, Importance sampling, Event generators.
Classification: 11.2.

Nature of problem:
Monte Carlo generation of events with limited transverse momenta and leading particles providing a unit event weight.

Solution method:
A special choice of matrix element which accounts for the leading particle effect makes it possible to express the integration over phase space volume in a form with slowly warying weight function. The weight function can be well estimated from the top and this enables immediate importance sampling of generated events to provide unit weight.

Restrictions:
The submitted version of the program is dimensioned for a maximum of 30 outgoing particles, but in principle it can be redimensioned to any number. The efficiency of the generation progressively decreases at very high particle multiplicities.

Unusual features:
Program GENEVE accounts for the leading particle effect and can generate envents with unit weight.

Running time:
Increasing with the multiplicity of particles. See the test run output.