Scanning of the e+e- to pi+pi- cross--section below 1 GeV by radiative events with untagged photon

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dc.creatorKhoze, V. A.
dc.creatorKonchatnij, M. I.
dc.creatorMerenkov, N. P.
dc.creatorPancheri, G.
dc.creatorTrentadue, L.
dc.creatorShekhovtzova, O. N.
dc.date2002-02-04
dc.date.accessioned2026-07-07T12:26:19Z
dc.date.available2026-07-07T12:26:19Z
dc.descriptionWe discuss an inclusive approach to the measurement of the e+e- --> pi+ pi- cross--section by the radiative return method without photon tagging. The essential part of this approach is the choice of rules for event selection which provide rejection of events with 3 (or more) pions and decrease the final--state radiation background. The radiative corrections to the initial--state radiation process are computed for DAPhNE conditions, using the quasi--real electron approximation for both, the cross--section and the underlying kinematics. The two cases of restricted and unrestricted pion phase space are considered. Some numerical calculations illustrate our analytical results.
dc.description25 pages, 4 figures, latex
dc.identifierhttps://arxiv.org/abs/hep-ph/0202021
dc.identifierhttp://arxiv.org/abs/hep-ph/0202021
dc.identifierEur.Phys.J.C25:199-213,2002
dc.identifierdoi:10.1007/s10052-002-0963-5
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/214845
dc.subjectHigh Energy Physics - Phenomenology
dc.titleScanning of the e+e- to pi+pi- cross--section below 1 GeV by radiative events with untagged photon
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