====== TTP04-27 Charge asymmetry and radiative $\phi$ decays ======
 
 
   <hidden TTP04-27  Charge asymmetry and radiative $\phi$ decays > The study of radiative $\phi$ decays into scalar mesons, with subsequent
  decay into $\pi\pi\gamma$, constitutes an important topic at the
  electron-positron collider DAPHNE. The interference of the respective 
  amplitude with the one for $\pi^+\pi^-\gamma$ production, where
  the photon originates from initial state radiation, will allow for unambiguous
  tests of models for the $\phi\to\gamma f_0(\to \pi\pi)$ amplitude.
  The forward-backward asymmetry of charged pions, which is a clear signal of
  such an interference, amounts up to 30 \% and is at the same time
  quite sensitive to the details of the various amplitudes.
  The results for several characteristic cases are presented and their
  implementation into the Monte Carlo generator PHOKHARA is described.
 </hidden>
|**Henryk Czyz, Agnieszka Grzelinska and Johann H. Kuhn**  | 
|**  Phys.Lett.  B611 116-122 2005  **  |
| {{preprints:2004:ttp04-27.pdf|PDF}} {{preprints:2004:ttp04-27.ps|PostScript}} [[http://arxiv.org/abs/hep-ph/0412239|arXiv]]   |
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