HELAC-DIPOLES

Helac-Dipoles

HELAC-DIPOLES includes the massless dipole formalism of Catani and Seymour, as well as its massive version as developed by Catani, Dittmaier, Seymour and Trocsanyi, for arbitrary helicity eigenstates of the external partons. Phase space integration of subtracted real radiation and integrated dipoles in both massless and massive cases is implemented and performed with the help of Monte Carlo generators PHEGAS and KALEU. A phase space restriction on the contribution of the dipoles is also added.

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People

Malgorzata Worek
Michal Czakon
Costas G. Papadopoulos

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Compilers:

gfortran

g95

lahey 95

Intel Fortran

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Software Download

DIPOLES 1.1.1 (16 October 2011): dipoles.1.1.1.tgz

DIPOLES 1.1.0 (27 July 2009): dipoles.tgz
the README file contains installation and usage instructions
HELAC-PHEGAS + DIPOLES: preconfigured.tgz
Preconfigured version to reproduce the results from the paper

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References

The following paper should be cited while using HELAC-DIPOLES package

Polarizing the Dipoles
M. Czakon, C. G. Papadopoulos and M. Worek
JHEP 0908 (2009) 085

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News & Developments

Changes in HELAC-DIPOLES Version 1.1.1

Makefile modification (to be run with HELAC-PHEGAS Curent Version 1.2.2)

Changes in HELAC-DIPOLES Version 1.1.0

Integrated dipoles implemented for massless and massive cases

Phase space restriction dependence included in the massless and massive cases

A bug in the jet function fixed

Phase space integrator corrected

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Contact us

If you have a question, comment, suggestion or bug report, please e-mail us at:

Costas.Papadopoulos(at)cern.ch
Malgorzata.Worek(at)cern.ch
mczakon(at)physik.rwth-aachen.de

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Last modified by Malgorzata Worek
Monday, October 17th, 2011