Hadronic cross section from radiative return

Abstract

The impact of final-state radiation (FSR) on the radiative return method for the extraction of the e+e- hadronic cross section is discussed in detail and experimental tests of the model dependence of FSR are proposed for the pi+pi- hadronic final state.

Invited talk at Workshop on $e^{+}{e}^{-}$ in the 1-2 GeV range: Physics and Accelerator Prospects, 10-13 Sept. Alghero (SS), Italy