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About the possible annihilation mode of a nucleon-antinucleon system into a K\(\bar K\) pair

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Il Nuovo Cimento (1955-1965)

Summary

The selection rules for annihilation of a nucleon-antinucleon system into a K-antiK pair which are due to conservation of angular momentum, parity (P), particle-antiparticle conjugation quantum number (C), andG quantum number conservation are discussed. It is shown that, in the framework of the Lee-Yang suggestion of a parity conjugation invariance, two new quantum numbers (calledE andF) can be constructed, which give rise to additional selection rules.

Riassunto

Vengono studiate le regole di selezione che risultano dalla conservazione del momento angolare, della parità (P), del numero di coniugazione di carica (C), e del numeroG nell’annichilamento di un sistema nucleone-antinucleone in una coppia di K-antiK. Si mostra come, nell’ambito della ipotesi di Lee e Yang di una invarianza per coniugazione di parità, si possono costruire due nuovi numeri quantici (che vengono chiamatiE edF), che dànno luogo a regole di selezioni addizionali.

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References

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Gatto, R. About the possible annihilation mode of a nucleon-antinucleon system into a K\(\bar K\) pair. Nuovo Cim 4, 526–530 (1956). https://doi.org/10.1007/BF02745376

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  • DOI: https://doi.org/10.1007/BF02745376

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