Summary
We formulate a Reggeized absorption model for any two-body reaction involving particles of arbitrary spins, with particular attention on the factorization property. The absorptive correction is enhanced to account for diffractive dissociations. Using this model, we achieve a phenomenological analysis of πN, KN, KN,NN andNN reactions. In order to test the compatibility of the exchange-degeneracy assumption, two independent sets of fits are proposed: one with independent Regge trajectories, the other with degenerate trajectories and residues. In both cases, the agreement with the experimental data is qualitatively good.
Riassunto
Si formula un modello di assorbimento reggeizzato per una reazione a due corpi con particelle di spin arbitrario. Si esaminano in modo particolare le proprietà di fattorizzazione. Si aumenta la correzione per assorbimento per tener conto delle dissociazioni diffrattive. Usando questo modello, si può svolgere un’analisi fenomenologica delle reazioni πN, KN,\(\bar K\mathcal{N}\),NN e\(\mathcal{N}\bar {\mathcal{N}}\). Per verificare la compatibilità dell’ipotesi di degenerazione di scambio, si propongono due insiemi indipendenti di approssimazioni: uno con traicttorie di Regge indipendenti, l’altro con traiettorie degenerate e residui. In entrambi i casi l’accordo con i dati sperimentali à qualitativamente buono.
Реэюме
Мы формулируем реджеиэованную абсорбционную модель для любой двух-частичной реакции, включаюшей частицы с проиэвольными спинами, причем, особое внимание уделяется свойству факториэации. Абсорбционная поправка увеличивается для общяснения диффракционных диссоциаций. Испольэуя зту модель, мы проводим феноменологический аналиэ πN, КN,\(\bar K\mathcal{N}\),NN и\(\mathcal{N}\bar {\mathcal{N}}\) реакций. Чтобы проверить совместность предположения обменного вырождения, предлагаются две неэависимых системы подгонок: одна с неэависимыми траекториями Редже, другая с вырожденными траекториями и вычетами. В обоих случаях получается хорощее качественное согласие с зкспериментальными данными.
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Drouffe, J.M., Navelet, H. Exchange degeneracy and absorption: πN, KN andNN reactionsreactions. Nuov Cim A 2, 39–66 (1971). https://doi.org/10.1007/BF02723987
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DOI: https://doi.org/10.1007/BF02723987