Can four-quark states be easily detected in baryon-antibaryon scattering
- Institut des Sciences Nucleaires, 53, avenue des Martyrs, 38026 Grenoble CEDEX, France (FR)
We attempt to explain the experimental sparsity of diquonia candidates given the theoretical abundance of such states. We do this by investigating the lowest-order contributions of such states as intermediates in {ital p{bar p}} scattering into exclusive baryon-antibaryon final states. We find that the contributions depend on the partial widths for the meson-meson decays of the diquonia, and that resonant effects can be easily made to disappear. We conclude that if the meson-meson widths of diquonia are larger than about 50 MeV, most of these states will be extremely difficult to observe in {ital p{bar p}} scattering, for instance. We note that diquonia may offer a convenient means of describing some aspects of the dynamics of baryon-antibaryon scattering.
- OSTI ID:
- 7187979
- Journal Information:
- Physical Review, D (Particles Fields); (USA), Vol. 41:7; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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QUARK MODEL
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645204* - High Energy Physics- Particle Interactions & Properties-Theoretical- Strong Interactions & Properties