Hidden local symmetry and the reaction e^+e^-\toπ^+π^-π^+π^- at energies \sqrt{s}\leq 1 GeV

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dc.creatorAchasov, N. N.
dc.creatorKozhevnikov, A. A.
dc.date2008-09-23
dc.date.accessioned2026-07-07T12:24:25Z
dc.date.available2026-07-07T12:24:25Z
dc.descriptionBased on the generalized hidden local symmetry as the chiral model of pseudoscalar, vector, and axial vector mesons, the excitation curve of the reaction e^+e^-\toπ^+π^-π^+π^- is calculated for energies in the interval 0.65\leq \sqrt{s}\leq1 GeV. The theoretical predictions are compared to available data of CMD-2 and BaBaR. It is shown that the inclusion of heavy isovector resonances ρ(1450) and ρ(1700) is necessary for reconciling calculations with the data. It is found that at \sqrt{s}\approx1 GeV the contributions of the above resonances are much larger, by the factor of 30, than the ρ(770) one, and are amount to a considerable fraction \sim0.3-0.6 of the latter at \sqrt{s}\sim m_ρ.
dc.description9 pages, 3 figures, 2 tables; accepted for publication in European Phys. Journal A
dc.identifierhttps://arxiv.org/abs/0809.3883
dc.identifierhttp://arxiv.org/abs/0809.3883
dc.identifierEur.Phys.J.A38:61-69,2008
dc.identifierdoi:10.1140/epja/i2008-10654-x
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/214316
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectHigh Energy Physics - Experiment
dc.subjectNuclear Theory
dc.titleHidden local symmetry and the reaction e^+e^-\toπ^+π^-π^+π^- at energies \sqrt{s}\leq 1 GeV
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