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A study of the possible existence of ρ′ and ρ″

  • Published:
Il Nuovo Cimento A (1965-1970)

Summary

The possible existence of new vector mesons above the ρ is investigated. The conclusion is that our data are compatible with the existence of the ρ′-meson only if we assume as a firm theoretical prediction the Gounaris-Sakurai tail of the standard ρ-meson. Furthermore our data are compatible with the existence of the ρ″-meson if we assume the validity of the\(\bar p\)p model for the calculation of the multihadron cross-section.

Riassunto

Si indaga la possibile esistenza di nuovi mesoni vettoriali con masse maggiori di quelle della ρ. Si conclude che i nostri dati sono compatibili con l’esistenza della risonanza ρ′ soltanto se si fa l’ipotesi che la coda della ρ sia descritta dalla formula di Gounaris-Sakurai. Inoltre i nostri dati sono compatibili con l’esistenza del mesone ρ″ solo se si calcola la sezione d’urto multiadronica basandosi sulla validità del modello di annichilazione antiprotone-protone.

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Alles-Borelli, V., Bernardini, M., Bollini, D. et al. A study of the possible existence of ρ′ and ρ″. Nuov Cim A 30, 136–143 (1975). https://doi.org/10.1007/BF02729798

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  • DOI: https://doi.org/10.1007/BF02729798

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