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Spin-zero mesons and broken chiralSU 3×SU 3

Мезоны с нулевым спином и нарушенная чиральнаяSU 2×SU 3

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Il Nuovo Cimento A (1965-1970)

Summary

Using the Fubini-Furlan method of the dispersive sum rules forN-point functions, some properties of the spin-zero mesons are discussed in the framework of broken chiralSU 3×SU 2 by means of field-current divergence identities. The masses of the κ and η′ mesons and the (Kπ)S-wave scattering lengths are estimated. These results are applied to the Kℓ3 decay parameters.

Riassunto

Col metodo di Fubini-Furlan delle regole di somma dispersive per funziori adN punti, si discutomo alcune proprietà dei mesoni di spin nullo nel contesto diSU 3×SU 2 chirale rotta tramite le identità della divergenza campo-corrente. Si valutano le masse dei mesoni κ e η′ e le lunghezze di scattering (Kπ) d’ondaS. Si applicano i risultati ai parametri del decadimento Kℓ3.

Резюме

Используя метод Фубини-Фурлана дисперсинных правил сумм дляN-точечных функций, обсуждаются некоторые свойства мезонов с нулевым спином в рамках нарушенной чиральнойSU 3×SU 3, при помощи тождеств для поля и дивергенции тока. Оцениваются массы κ и η′ мезонов и длины (Kπ)S-волнового рассеяния. Эти результаты применяются к параметрам Kℓ3 распада.

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Authors and Affiliations

  1. III. Physikalisches Institut, Technische Hochschule Aachen, Aachen

    R. Rodenberg & P. Zerwas

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  1. R. Rodenberg
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  2. P. Zerwas
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Work supported in part by the German Bundesministerium für Bildung und Wissenschaft.

Traduzione a cura della Redazione.

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Rodenberg, R., Zerwas, P. Spin-zero mesons and broken chiralSU 3×SU 3 . Nuovo Cimento A (1965-1970) 70, 569–578 (1970). https://doi.org/10.1007/BF02734494

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