Summary
The multiple pion production in antinucleon-nucleon annihilation processes is investigated by means of the statistical theory with the strong pion-pion interaction. The characteristics of the isobar state of two pions are determined from the observed momentum distribution of a nucleon in the reaction π-+p →N + 2π at 1 GeV or from the theories of Takeda, Dyson and Miyazawa. The mean number of produced pions is 3÷4 and rather less than that given by experiment.
Riassunto
Si studia la produzione multipla dei pioni nel processo di annichilazione anti-nucleone-nucleone per mezzo della teoria statistica dell’interazione forte pione-pione. Le oaratteristiclie dello stato isobarico di due pioni si determinano in base alla distribuzione dell’impulso di un nucleone osservata nella reazione π-+P →N + 2π a I GeV o dalle teorie di Takeda, Dyson e Miyazawa. Il numero medio dei pioni prodotti è 3÷4, alquanto inferiore a quanto risulta dall’esperienza.
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GotÔ, T. Pion-pion interaction and multiple pion production in nucleon-antinucleon annihilation process. Nuovo Cim 8, 625–631 (1958). https://doi.org/10.1007/BF02815243
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DOI: https://doi.org/10.1007/BF02815243