Meson decay in a corrected $3^P_0$ model

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dc.creatorda Silva, D. T.
dc.creatorda Silva, M. L. L.
dc.creatorde Quadros, J. N.
dc.creatorHadjimichef, D.
dc.date2008-10-02
dc.date.accessioned2026-07-07T11:45:52Z
dc.date.available2026-07-07T11:45:52Z
dc.descriptionExtensively applied to both light and heavy meson decay and standing as one of the most successful strong decay models is the $3^P_0$ model, in which $q\bar{q}$ pair production is the dominant mechanism. The pair production can be obtained from the non-relativistic limit of a microscopic interaction Hamiltonian involving Dirac quark fields. The evaluation of the decay amplitude can be performed by a diagrammatic technique for drawing quark lines. In this paper we use an alternative approach which consists in a mapping technique, the Fock-Tani formalism, in order to obtain an effective Hamiltonian starting from same microscopic interaction. An additional effect is manifest in this formalism associated to the extended nature of mesons: bound-state corrections. A corrected $3^P_0$ is obtained and applied, as an example, to $b_{1}\toωπ$ and $a_{1}\toρπ$ decays.
dc.description3 figures. To appear in Physical Review D
dc.identifierhttps://arxiv.org/abs/0810.0293
dc.identifierhttp://arxiv.org/abs/0810.0293
dc.identifierPhys.Rev.D78:076004,2008
dc.identifierdoi:10.1103/PhysRevD.78.076004
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/202025
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectNuclear Theory
dc.titleMeson decay in a corrected $3^P_0$ model
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