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e+e- -> pi+pi-e+e-: a potential background for sigma(e+e- -> pi+pi-) measurement via radiative return method

Henryk Czyz·Elzbieta Nowak
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Abstract

A Monte Carlo generator (EKHARA) has been constructed to simulate the reaction e+e- -> pi+pi-e+e- based on initial and final state emission of a e+e- pair from e+e- -> pi+pi- production diagram.A detailed study of the process, as a potential background for sigma(e+e- -> pi+pi-) measurement via radiative return method, is presented for phi- and B- factory energies.

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Henryk Czyz, Elzbieta Nowak. 2003-10-29. e+e- -> pi+pi-e+e-: a potential background for sigma(e+e- -> pi+pi-) measurement via radiative return method. https://arxiv.org/abs/hep-ph/0310335

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