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VOLUME 80 (2004) | ISSUE 11 | PAGE 806
High accuracy description of radiative return production of low-mass muon and pion pairs at e+e--colliders
PACS: 11.80.La, 12.20.Ds, 13.66.-a
Abstract
The process of muon (pion) pair production with small invariant mass in electron-positron high-energy annihilation, accompanied by emission of a hard photon at large angles, is considered. We find that the Drell-Yan picture for the differential cross section is valid in the charge-even experimental set-up. Radiative corrections both for the electron block and for the final state block are taken into account.