Cross section and polarization observables for the reaction $e^++e^-\to a_1(1260)+π$

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dc.creatorTomasi-Gustafsson, E.
dc.creatorGakh, G. I.
dc.creatorAdamuščín, C.
dc.date2008-03-05
dc.date2008-06-04
dc.date.accessioned2026-07-07T11:40:39Z
dc.date.available2026-07-07T11:40:39Z
dc.descriptionA model independent formalism for the electron positron annihilation reaction $e^++e^-\to a_1(1260)+π$ has been derived. The differential and total cross sections and the elements of the spin--density matrix of the $a_1$-meson were calculated in terms of the electromagnetic form factors of the corresponding $γ^*a_1π$ current. Simple models of $a_1$ form factors have been fitted to the available cross section data and they allow to give numerical predictions for the different observables.
dc.description19 pages, 6 figures Added formulas for axial meson decay in 3 pions Modified version to appear in PRC
dc.identifierhttps://arxiv.org/abs/0803.0706
dc.identifierhttp://arxiv.org/abs/0803.0706
dc.identifierPhys.Rev.C77:065214,2008
dc.identifierdoi:10.1103/PhysRevC.77.065214
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/200318
dc.subjectHigh Energy Physics - Phenomenology
dc.titleCross section and polarization observables for the reaction $e^++e^-\to a_1(1260)+π$
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