The tauola-photos-F environment for the TAUOLA and PHOTOS packages, release II

We present the system for versioning two packages: the TAUOLA of τ -lepton decay and PHOTOS for radiative corrections in decays. The following features can be chosen in an automatic or semi-automatic way: (1) format of the common block HEPEVT; (2) version of the physics input (for TAUOLA): as published, as initialized by the CLEO collaboration, as initialized by the ALEPH collaboration (it is suggested to use this version only with the help of the collaboration advice), new optional parametrizations of matrix elements in 4π decay channels; (3) type of application: stand-alone, universal interface based on the information stored in the HEPEVT common block including longitudinal spin effects in the elementary Z/γ∗ → τ+τ− process, extended version of the standard universal interface including full spin effects in the H/A → τ+τ− decay, interface for KKMC Monte Carlo, (4) random number generators; (5) compiler options. To be submitted to Comput. Phys. Commun. † This work is partly supported by the Polish State Committee for Scientific Research (KBN) grants Nos. 2P03B00122, 2P03B13025, 5P03B09320, and the European Community’s Human Potential Programme under contracts HPRN-CT-2000-00149 (‘Physics at Colliders’) and a Marie Curie Fellowship HPMD-CT-2001-00105 (‘Multi-particle production and higher order correction’).