# FASTERD: a Monte Carlo event generator for the study of final state radiation in the process $e^ e^- oππγ$ at DA$Φ$NE - High Energy Physics - Phenomenology

FASTERD: a Monte Carlo event generator for the study of final state radiation in the process $e^ e^- oππγ$ at DA$Φ$NE - High Energy Physics - Phenomenology - Download this document for free, or read online. Document in PDF available to download.

Abstract: FASTERD is a Monte Carlo event generator to study the final state radiationboth in the $e^+e^-\to\pi^+\pi^-\gamma$ and $e^+e^-\to\pi^0\pi^0\gamma$processes in the energy region of the $\phi$-factory DA$\Phi$NE. Differentialspectra that include both initial and final state radiation and theinterference between them are produced. Three different mechanisms for the$\pi\pi\gamma$ final state are considered: Bremsstrahlung process both in theframework of sQED and Resonance Perturbation Theory, the $\phi$ direct decay$e^+e^-\to\phi\to f 0;f 0+\sigma\gamma\to \pi\pi\gamma$ and the doubleresonance mechanism as $e^+e^-\to\phi\to ho^\pm\pi^\mp\to \pi^+\pi^-\gamma$and $e^+e^-\to ho\to \omega\pi^0\to \pi^0\pi^0\gamma$. Additional models canbe incorporated as well.

Author: ** O. Shekhovtsova, G. Venanzoni, G. Pancheri**

Source: https://arxiv.org/