Modeling the threshold region in e+e- -> pi+pi-gamma for Radiative Return
at DAPHNE
por
Sergiy Ivashyn
(University of Silesia)
→
Europe/Madrid
Sala Seminarios IFIC (Edf. Institutos de Investigación)
Sala Seminarios IFIC
Edf. Institutos de Investigación
Descripción
To improve the accuracy of the e+e- -> pi+pi-gamma Radiative Return method, one has to control the theoretical uncertainty of the final-state photon emission. It is of particular importance at DAPHNE for the analysis, where cuts are relaxed to cover the threshold region. By means of the Monte Carlo event generator PHOKHARA we compare several final-state radiation models and present results, relevant for a phi-meson factory.