Abstract
We discuss the degeneracy structure of Regge trajectories and residues in mesonbaryon scattering amplitudes which results from non-exoticism in a dualSU(3) picture. Plots of universal baryon residue functions are presented, which show to what extent this structure is realized by the experimental baryon resonances. TheEXD structure of the Regge trajectories in the mesonict-channel is tested in the highenergy forward scattering region. We present fits to the experimental data, including weak absorption corrections. A value ofF/D∼1/3 for theA-Amplitude, and a suppressedA′, are found to be consistent with both the resonance and scattering data. A common description of the high-energy and low-energy data is sought in terms of a five parameter Veneziano amplitude.
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A preliminary version of this paper was presented at the Titisee Meeting (Titisee, June 1971) and at the International Seminar on Binary Reactions (Dubna, June 1971).
Research sponsored by the Volkswagenwerk Stiftung.
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Hirshfeld, A.C., Körner, J.G. & Schmidt, M.G. Duality andSU(3) for meson-baryon resonances and high-energy forward scattering. Z. Physik 252, 255–282 (1972). https://doi.org/10.1007/BF01395372
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DOI: https://doi.org/10.1007/BF01395372