Summary
We calculate the contributions of the A1 and A2 resonances to a set of six superconvergence sum rules in ρπ scattering. The π, ω and A1 terms go a good way towards saturation of the forward sum rules, and the A2 terms are rather small. The A2 contributions to the non-forward sum rules are larger, and two of them are still far from saturation.
Riassunto
Si calcolano i contributi delle risonanze A1 e A2 ad un gruppo di sei regole di somma di superconvergenza nello scattering ρπ. I termini del π, ω e A1 si avvicìnano molto alla saturazione delle regole di somma in avanti e i termini di A2 sono piuttosto piccoli. I contributi di A2 alle regole di somma non in avanti sono maggiori, e due di essi sono ancora lontani dalla saturazione.
Резюме
Мы вычисляем вклады A1 и A2 резонансов в систему шести суперсходящихся правил сумм в рп рассеянии. Члены п, щ и A1 идут правильным образом к насыщению правил сумм для рассеяния вперед, а члены A2 довольно малы. Вклад от A2 в правила сумм для рассеяния не на нулевой угол является большим, причем два из еще далеки пт насыщения.
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References
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Traduzione a cura della Redazione.
Перевебено ребакцией.
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Frampton, P.H., Taylor, J.C. Superconvergence sum rules in ρπ scattering. Nuovo Cimento A (1965-1970) 49, 152–156 (1967). https://doi.org/10.1007/BF02739080
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DOI: https://doi.org/10.1007/BF02739080