FASTERD: A Monte Carlo event generator for the study of final state radiation in the process e+e−→ππγe+e−→ππγ at DAΦNE

FASTERD is a Monte Carlo event generator to study the final state radiation both in the e+e−→π+π−γe+e−→π+π−γ and e+e−→π0π0γe+e−→π0π0γ processes in the energy region of the ϕ-factory DAΦNE. Differential spectra that include both initial and final state radiation and the interference between them are produced. Three different mechanisms for the ππγ final state are considered: Bremsstrahlung process (both in the framework of sQED and Resonance Perturbation Theory), the ϕ   direct decay (e+e−→ϕ→(f0;f0+σ)γ→ππγe+e−→ϕ→(f0;f0+σ)γ→ππγ) and the double resonance mechanism (as e+e−→ϕ→ρ±π∓→π+π−γe+e−→ϕ→ρ±π∓→π+π−γ and e+e−→ρ→ωπ0→π0π0γe+e−→ρ→ωπ0→π0π0γ). Additional models can be incorporated as well.Program summaryProgram title: FASTERDCatalogue identifier: AEDC_v1_0Program summary URL:http://cpc.cs.qub.ac.uk/summaries/AEDC_v1_0.htmlProgram obtainable from: CPC Program Library, Queen's University, Belfast, N. IrelandLicensing provisions: Standard CPC licence, http://cpc.cs.qub.ac.uk/licence/licence.htmlNo. of lines in distributed program, including test data, etc.: 4505No. of bytes in distributed program, including test data, etc.: 155 490Distribution format: tar.gzProgramming language: FORTRAN77Computer: any computer with FORTRAN77 compilerOperating system: UNIX, LINUX, MAC OSXClassification: 11.1External routines: MATHLIB, PACKLIB from CERN library (http://cernlib.web.cern.ch/cernlib/)Nature of problem:   General parameterization of the γ∗→ππγγ∗→ππγ process; test models describing Bremsstrahlung process, the Φ direct decay, double vector resonance mechanism.Solution method: Numerical integration of analytical formulae.Restrictions: Only one photon emission is considered.Running time: 28 sec with standard input card (1e6 events generated) on an Intel Core 2 Duo 2 GHz with 1 GB RAM.