Wave functions of composite hadron states and relationship to couplings of scattering amplitudes for general partial waves
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Wave functions of composite hadron states and relationship to couplings of scattering amplitudes for general partial waves

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Wave functions of composite hadron states and relationship to couplings of scattering amplitudes for general partial waves

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dc.contributor.author Aceti, Francesca
dc.contributor.author Oset Báguena, Eulogio
dc.date.accessioned 2015-08-19T11:15:34Z
dc.date.available 2015-08-19T11:15:34Z
dc.date.issued 2012
dc.identifier.uri http://hdl.handle.net/10550/46678
dc.description.abstract In this paper we present the connection between scattering amplitudes in momentum space and wave functions in coordinate space, generalizing previous work done for s-waves to any partial wave. The relationship to the wave function of the residues of the scattering amplitudes at the pole of bound states or resonances is investigated in detail. A sum rule obtained for the couplings provides a generalization to coupled channels, any partial wave and bound or resonance states, of Weinberg's compositeness condition, which was only valid for weakly bound states in one channel and s-wave. An example, requiring only experimental data, is shown for the ρ meson indicating that it is not a composite particle of ππ but something else.
dc.language.iso eng
dc.relation.ispartof Physical Review D, 2012, vol. 86, num. 1, p. 014012
dc.rights.uri info:eu-repo/semantics/openAccess
dc.source Aceti, Francesca Oset Báguena, Eulogio 2012 Wave functions of composite hadron states and relationship to couplings of scattering amplitudes for general partial waves Physical Review D 86 1 014012
dc.subject Física
dc.title Wave functions of composite hadron states and relationship to couplings of scattering amplitudes for general partial waves
dc.type info:eu-repo/semantics/article
dc.date.updated 2015-08-19T11:15:34Z
dc.identifier.doi http://dx.doi.org/10.1103/PhysRevD.86.014012
dc.identifier.idgrec 080197

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