Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9861428 | Physics Letters B | 2005 | 7 Pages |
Abstract
The study of radiative Ï decays into scalar mesons, with subsequent decay into ÏÏγ, constitutes an important topic at the electron-positron collider DAPHNE. The interference of the respective amplitude with the one for Ï+Ïâγ production, where the photon originates from initial state radiation, will allow for unambiguous tests of models for the Ïâγf0(âÏÏ) 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.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Nuclear and High Energy Physics
Authors
Henryk Czyż, Agnieszka GrzeliÅska, Johann H. Kühn,