Findings measure hadronic cross-section corrections in electron-positron annihilation, indicating improved accuracy in particle studies.
The hadronic invariant mass distribution for the process of electron--positron annihilation into a pair of charged pions accompanied by a photon radiated from the initial state has been studied for the region of DAΦNE energies. The Born cross--section and the electromagnetic radiative corrections to it are calculated for realistic conditions of the KLOE detector. The dependence on the physical parameters which define the event selection is obtained.
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V.A. et al. (2000) studied this question.
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