Elsevier Science Home
Computer Physics Communications Program Library
Full text online from Science Direct
Programs in Physics & Physical Chemistry
CPC Home

[Licence| Download | New Version Template] adxo_v2_0.tar.gz(2918 Kbytes)
Manuscript Title: The tauola-photos-F environment for the TAUOLA and PHOTOS packages, release II.
Authors: P. Golonka, B. Kersevan, T. Pierzchala, E. Richter-Was, Z. Was, M. Worek
Program title: tauola-photos-F
Catalogue identifier: ADXO_v2_0
Distribution format: tar.gz
Journal reference: Comput. Phys. Commun. 174(2006)818
Programming language: CPP standard C-language preprocessor, GNU Make builder tool and FORTRAN compiler.
Computer: PC.
Operating system: GNU Linux.
Keywords: Particle physics, Event simulation, Elementary, Radiative corrections, Heavy leptons, Resonances, Particle decays, Monte carlo simulation, Quantum electrodynamics, Leading-log Approximations, Heavy lepton tau, Spin polarization, Electro-weak effects.
PACS: 12.15.Lk, 12.20.-m, 13.35.Dx, 13.40.Ks, 13.88.+e.
Classification: 11.1, 11.2, 11.4.

Does the new version supersede the previous version?: Yes

Nature of problem:
The code of Monte Carlo generators often has to be tuned to the needs of large HEP Collaborations and experiments. Usually, these modifications do not introduce important changes in the algorithm, but rather modify the initialization and form of the hadronic current in τ decays. The format of the event record (HEPEVT common block) used to exchange information between building blocks of Monte Carlo systems often needs modification. Thus, there is a need to maintain various, slightly modified versions of the same code. The package presented here allows the production of ready-to-compile versions of TAUOLA [1,2] and PHOTOS [3] Monte Carlo generators with appropriate demonstration programs. The new algorithm, universal interface of TAUOLA to work with the HEPEVT common block, is also documented here. Finally, minor technical improvements of TAUOLA and PHOTOS are also listed.

Solution method:
The standard UNIX tool: the C-language preprocessor is used to produce a ready-to-distribute version of TAUOLA and PHOTOS code. The final FORTRAN code is produced from the library of 'pre-code' that is included in the package.

Reasons for new version:
The functionality of the version of TAUOLA and PHOTOS changed over the last two years. The changes, and their reasons, are documented in Section 9, and our new papers cited in this section.

Additional comments:
The updated version stored here includes new features described in Section 9 of the paper.
PHOTOS and TAUOLA were first submitted to the library as separate programs. Summary details of these earlier programs are held in the library under Catalogue Ids ABZI (PHOTOS) and ABZP (TAUOLA).
Note also that future versions may become available from the web page, http://cern.ch/wasm/goodies.html.

Running time:
Depends on the speed of the computer used and the demonstration program chosen. Typically a few seconds.

References:
[1] S.Jadach, Z. Was, R. Decker, and J.H. Kühn, Comput. Phys. Commun. 76 (1993) 361;
[2] A. E. Bondar et al., {\em Comput. Phys. Commun. 146 (2002) 139;
[3] E. Barberio and Z.~Was, Comput. Phys. Commun. 79 (1994) 291