Test of an additive diquark spectator model for meson-baryon quasi-two-body reactions | Zendy

M. Zrałek | Zendy; W.J. Metzger | Zendy; R.T. Van de Walle | Zendy; C. Dionisi | Zendy; A. Gurtu | Zendy; M. Mazzucato | Zendy; B. Foster | Zendy

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Test of an additive diquark spectator model for meson-baryon quasi-two-body reactions

Author(s) -

M. Zrałek,

W.J. Metzger,

R.T. Van de Walle,

C. Dionisi,

A. Gurtu,

M. Mazzucato,

B. Foster

Publication year - 1979

Publication title -

physical review. d. particles, fields, gravitation, and cosmology/physical review. d. particles and fields

Language(s) - English

Resource type - Journals

eISSN - 1089-4918

pISSN - 0556-2821

DOI - 10.1103/physrevd.19.820

Subject(s) - physics , diquark , baryon , strangeness , particle physics , meson , quark model , quark , nuclear physics , hyperon , constituent quark , strangeness production , quarkonium

An additive diquark model is proposed to relate the forward cross sections of meson-baryon quasi-two-body reactions. The model consists of a quark-diquark structure for baryons combined with additivity of quark-(di)quark amplitudes. Good agreement is found between this model, which contains only one free parameter, and a large body of experimental data for charge-exchange and strangeness-exchange meson-baryon two-body reactions. This is in contrast to the SU(6)-symmetric additive quark model which disagrees violently with the data. © 1979 The American Physical Society

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