Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1996-09-11
Comput.Phys.Commun. 99 (1997) 355-370
Physics
High Energy Physics
High Energy Physics - Phenomenology
LateX file, 23 pages, in press on Computer Physics Communications
Scientific paper
10.1016/S0010-4655(96)00122-1
The Monte Carlo program {\tt WWGENPV}, designed for computing distributions and generating events for four-fermion production in $e^+ e^- $ collisions, is described. The new version, 2.0, includes the full set of the electroweak (EW) tree-level matrix elements for double- and single-$W$ production, initial- and final-state photonic radiation including $p_T / p_L$ effects in the Structure Function formalism, all the relevant non-QED corrections (Coulomb correction, naive QCD, leading EW corrections). An hadronisation interface to {\tt JETSET} is also provided. The program can be used in a three-fold way: as a Monte Carlo integrator for weighted events, providing predictions for several observables relevant for $W$ physics; as an adaptive integrator, giving predictions for cross sections, energy and invariant mass losses with high numerical precision; as an event generator for unweighted events, both at partonic and hadronic level. In all the branches, the code can provide accurate and fast results.
Charlton David G.
Montagna Guido
Nicrosini Oreste
Piccinini Fulvio
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