Exclusive electroproduction of pion pairs

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dc.creatorWarkentin, N.
dc.creatorDiehl, M.
dc.creatorIvanov, D. Yu.
dc.creatorSchafer, A.
dc.date2007-03-14
dc.date.accessioned2026-07-07T11:02:51Z
dc.date.available2026-07-07T11:02:51Z
dc.descriptionWe investigate electroproduction of pion pairs on the nucleon in the framework of QCD factorization for hard exclusive processes. We extend previous analyses by taking the hard-scattering coefficients at next-to-leading order in $α_s$. The dynamics of the produced pion pair is described by two-pion distribution amplitudes, for which we perform a detailed theoretical and phenomenological analysis. In particular, we obtain constraints on these quantities by comparing our results with measurements of angular observables that are sensitive to the interference between two-pion production in the isoscalar and isovector channels.
dc.identifierhttps://arxiv.org/abs/hep-ph/0703148
dc.identifierhttp://arxiv.org/abs/hep-ph/0703148
dc.identifierEur.Phys.J.A32:273-291,2007
dc.identifierdoi:10.1140/epja/i2007-10374-9
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/188389
dc.subjectHigh Energy Physics - Phenomenology
dc.titleExclusive electroproduction of pion pairs
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