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Meson baryon sum rules

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Zeitschrift für Physik

Abstract

The PCAC consistency condition, the Adler-Weisberger sum rule and the dispersion superconvergent sum rule have been saturated with resonance contributions only. Strangeness-changing currents and strangeness-conserving currents have been considered and compared. The results obtained also support PCAC for the strangeness conserving current. While in theπN case PCAC and the Adler-Weisberger sum rule are almost saturated with the famous N *33 resonance only, in the KN caseY *1 (1385),Y *0 (1405) andY *0 (1520) seem to be sufficient. The superconvergent sum rule works very well in the case ofπN scattering, including the contribution of twelve resonances. For KN scattering it can be neither established nor disapproved.

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Authors and Affiliations

  1. Institute “Ruđer Bošković” and Faculty of Science, University of Zagreb, Deutschland

    D. Tadić & N. Zovko

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  1. D. Tadić
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  2. N. Zovko
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Tadić, D., Zovko, N. Meson baryon sum rules. Z. Physik 201, 232–240 (1967). https://doi.org/10.1007/BF01326814

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  • DOI: https://doi.org/10.1007/BF01326814

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