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Manuscript Title: LQGENEP: a leptoquark generator for ep scattering.
Authors: L. Bellagamba
Program title: LQGENEP
Catalogue identifier: ADOY_v1_0
Distribution format: tar.gz
Journal reference: Comput. Phys. Commun. 141(2001)83
Programming language: Fortran.
Computer: AlphaServer D/Unix ds20 6/500, SUNW SPARCstation-20, PC AMD K6-2 3D 350 MHz.
Operating system: Digital Unix, SunOS, Red Hat Linux.
RAM: 2.5M words
Keywords: Monte Carlo generator, Leptoquark, Lepton flavor violation, Electron-proton scattering, Beyond standard model, Elementary particle physics, Event simulation.
Classification: 11.2.

Subprograms used:
Cat Id Title Reference
ACLI_v1_0 PDFLIB, version 3.10 CPC 75(1993)396
ACTU_v2_0 PYTHIA V6.154 CPC 135(2001)238

Nature of problem:
A leptoquark generator in electron/positron-proton scattering is presented. The generator allows to simulate leptoquark mediated processes involving any quark generation in the initial and final state and any lepton generation in the final state.

Solution method:
The model used for the process generation is based on an effective Lagrangian which respects the Standard Model symmetries and conserves lepton and baryon numbers.
The Pythia library must be linked; in particular the generator is designed to be interfaced with the Pythia version 6.1 [1]. In addition the PDFLIB [2] (which is a compilation of the different parton distribution function parametrizations) and the CERN libraries PACKLIB [3] (which contains the used HBOOK [4] histogramming package) and MATHLIB [5] must be supplied.

[1] http://www.thep.lu.se/~torbjorn/Pythia.html
[2] H. Plothow-Besch, Comput. Phys. Commun. 75, 396 (1993).
[3] http://wwwinfo.cern.ch/asd/cernlib/packlib.html
[4] http://wwwinfo.cern.ch/asdoc/hbook/HBOOKMAIN.html
[5] http://wwwinfo.cern.ch/asd/cernlib/mathlib.html