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Gauge-invariant chiral Lagrangian and -p p annihilations

Калибровочно инвариантный чиральный Лагранжиан и -p p аннигиляции

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Il Nuovo Cimento A (1965-1970)

Summary

In this paper we investigate two-meson production processes in -p p annihilation at rest in a gauge-invariant, chiralSU 3×SU 3 symmetric Lagrangian model. The gauge field has been identified as the massive vector field which is decomposed into theρ octet and theρ′ octet. In this work bothS-wave andP-wave annihilations have been computed. Our result is compatible with the most recent experimental data. The possible contribution from higher integer spin dominance has also been discussed.

Riassunto

In questo articolo si studiano processi di produzione di due mesoni nelle annichilazioni -p p in quiete in un modello lagrangiano simmetricoSU 3×SU 3 chirale, invariante di gauge. Si identifica il campo di gauge come il campo vettoriale con massa che si decompone nell’ottetto diρ e nell’ottetto diρ′. In questo articolo si sono calcolate sia le annichilazioni di ondaS che quelle di ondaP. I nostri risultati sono compatibili con i più recenti dati sperimentali. Si discute anche il possibile contributo della predominanza di spin intero maggiore.

Реэюме

В зтой статье мы исследуем процессы рождения двух меэонов при -p p аннигиляции в покое на основе модели с калибровочно инвариантным, чиральнымSU 3×SU 3 симметричным Лагранжианом. Калибровочное поле отождествляется с массивным векторным полем, которое состоит иэ ρ октета и ρ’ октета. В зтой работе вычисляютсяS-волновые иР-волновые аннигиляции. Нащи реэультаты сопоставимы с больщинством недавних зкспериментальных данных. Также обсуждается воэможный вклад от доминантности высщих целых спинов.

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Author notes

  1. C. C. Chiang

    Present address: The Center for Particle Theory, University of Texas, Austin, Tex.

Authors and Affiliations

  1. Physics Department, Syracuse University, Syracuse, N. Y.

    C. C. Chiang

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  1. C. C. Chiang
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Additional information

Work supported by the United States Atomic Energy Commission under Contract AT(30-1)3399 and AT(40-1)3992.

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Chiang, C.C. Gauge-invariant chiral Lagrangian and -p p annihilations. Nuov Cim A 8, 501–519 (1972). https://doi.org/10.1007/BF02722721

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