Programs in Physics & Physical Chemistry
|[Licence| Download | New Version Template] adcf_v1_0.gz(1112 Kbytes)|
|Manuscript Title: PROJET: jet cross sections in deeply inelastic electron proton scattering version 4.1.|
|Authors: D. Graudenz|
|Program title: PROJET VERSION 4.1|
|Catalogue identifier: ADCF_v1_0|
Distribution format: gz
|Journal reference: Comput. Phys. Commun. 92(1995)65|
|Programming language: Fortran.|
|RAM: 2.5M words|
|Keywords: Particle physics, Elementary, Phenomenological model, Chromodynamics quantum, Jet physics, Deeply inelastic Electron proton Scattering, Monte carlo simulation.|
|ACLI_v1_0||PDFLIB, VERSION 3.10||CPC 75(1993)396|
Nature of problem:
In deeply inelastic scattering, the hadronic final state can be analysed by a jet cluster algorithm resulting in cross sections for the production of (n+1) jets (including the target remnant jet). It is possible to extract physical parameters (AlphaQCD, parton densities fi(xi,mu2f)) from experimentally measured jet cross sections.
PROJET makes it possible to study these cross sections from a theoretical point of view by performing the integration of the differential cross sections over phase space regions that are related to a certain number of jets. QCD corrections are included by analytical formulae.
The program contains jet cross sections for the production of (1+1), (2+1) and (3+1) jets. QCD corrections to (1+1) and (2+1) jet cross sections are included for all polarisations of the exchanged virtual photon.
Depends strongly on the process under consideration; the generation of the weight for 1 event takes typically 0.001 to 0.02 seconds on a DEC or hp workstation, depending on the process; therefore an integration using 200,000 events typically needs 3 minutes to 1 hour of CPU time.
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