HELAC-Onia

Helac-Onia


HELAC-Onia ia an automatic matrix element generator for the calculation of the heavy quarkonium helicity amplitudes in the framework of NRQCD factorization. The program is able to calculate helicity amplitudes of multi P-wave quarkonium states production at hadron colliders and electron-positron colliders by including new P-wave off-shell currents. Besides the high efficiencies in computation of multi-leg processes within the Standard Model, HELAC-Onia is also sufficiently numerical stable in dealing with P-wave quarkonia and P-wave color-octet intermediate states.

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People

Hua-Sheng Shao

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Compilers:

    gfortran
 
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Software Download

   
   HELAC-Onia  Curent Version 2.0.1 (18 November 2015):  HELAC-Onia-2.0.1.tar.gz


HELAC-Onia Version 1.1.2 (17 June 2013): HELAC-Onia-1.1.2.tar.gz

HELAC-Onia Version 1.0.0 (10 January 2013):  HELAC-Onia-1.0.tgz

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References

 
The following papers should be cited while using HELAC-Onia package

HELAC-Onia: an automatic matrix element generator for heavy quarkonium physics
Hua-Sheng Shao
Comput. Phys. Commun. 184 (2013) 2562

HELAC-Onia 2.0: an upgraded matrix-element and event generator for heavy quarkonium physics
Hua-Sheng Shao
Comput. Phys. Commun. 198 (2016) 238


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News & Developments & Bug Report & Validation



Changes in HELAC-ONIA Version 2.0.1

 All changes are summarized in the file CHANGES, which is included in the tarball


Changes in HELAC-ONIA Version 1.1.2

  All changes are summarized in the file CHANGES, which is included in the tarball

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Contact us


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

erdissshaw(at)gmail.com

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Last modified by Malgorzata Worek
Wednesday, 18 November 2015