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Production of resonances in annihilations\(\bar pp \to \pi ^ + \pi ^ + \pi ^ - \pi ^ - \pi ^0 \) at 5.7 GeV/cat 5.7 GeV/c

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Il Nuovo Cimento A (1965-1970)

Summary

A sample of 6435 events of the reaction\(\bar pp \to \pi ^ + \pi ^ + \pi ^ - \pi ^ - \pi ^0 \) from 2 m CERN HBC is available. The production of ρ±, ρ0, f0 and ω0 resonances in this sample is fitted. The results show more abundant resonance production than that found by Alles-Borelliet al. in the analysis of only 872 events of the same reaction. An A1-like effect is observed similarly as in annihilations\(\bar pd \to p\pi ^ + \pi ^ - \pi ^ - \pi ^0 \) by Kasperet al.

Riassunto

Si dispone di un campione di 6435 di eventi della reazione\(\bar pp \to \pi ^ + \pi ^ + \pi ^ - \pi ^ - \pi ^0 \) nel HBC 2 m del CERN. Si approssima la produzione delle resonance ρ±, ρ0, f0 e ω0 in questo campione. I risultati evidenziano una produzione di risonanze piú cospicua di quella trovata da Alles-Borelliet al. nell’analisi di solo 872 eventi della stessa reazione. Si osserva un effetto di tipo A1 come quello trovato nelle annichilazioni\(\bar pd \to p\pi ^ + \pi ^ - \pi ^ - \pi ^0 \) da Kasperet al.

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References

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Řídký, J. Production of resonances in annihilations\(\bar pp \to \pi ^ + \pi ^ + \pi ^ - \pi ^ - \pi ^0 \) at 5.7 GeV/cat 5.7 GeV/c. Nuov Cim A 81, 405–413 (1984). https://doi.org/10.1007/BF02724523

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  • DOI: https://doi.org/10.1007/BF02724523

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