Summary
We construct a Glauber theory for the proton stripping and the pion production in relativistic deuteron-nucleus collisions, taking into account the relativistic dilation of the internal deuteron wave function. The theory is applied to the experiments performed at the Bevalac with 1.05 and 2.1 GeV/nucl. incident deuterons. The observed broadening of the stripped proton spectrum is explained as coming from the relativistic dilation effect. The production of fast pions is described as initiated from nucleons of the incident deuteron, whose momenta are large, again due to the relativistic dilation. Both the momentum shapes and theΛ-dependence of the cross-sections for the different reactions are well reproduced.
Riassunto
Si costruisce una teoria di Glauber per lo stripping del protone e la produzione di pioni nell’urto di deutoni relativistici con i nuclei, tenendo conto della dilatazione relativistica della funzione d’onda interna del deutone. La teoria è applicata agli esperimenti effettuati presso l’acceleratore Bevalac con deutoni incidenti di 1.05 e 2.1 GeV/nucl. L’allargamento dello spettro dei protoni di stripping, osservato sperimentalmente, è spiegato come dovuto all’effetto di dilatazione relativistica. Si descrive la produzione di pioni veloci come iniziata da quei nucleoni del deutone incidente, il cui momento è grande, di nuovo a causa della dilatazione relativistica. Sia la dipendenza dal momento che la dipendenza daA delle sezioni d’urto delle varie reazioni sono ben riprodotte.
Реэюме
Мы конструируем теорию Глаубера для протонного стриппинга и рождения пионов при релятивистских соударениях дейтронов с ядрами, учитывая релятивистское расщирение внутренней волновой функции дейтрона. Предложенная теория применяется к зкспериментам на Бзвалаке с знергиями 1.05 и 2.1 ГзВ/нуклон падаюших дейтронов. Наблюдаемое ущирение протонного спектра при стриппинге общясняется зффектом релятивистского расщирения. Считается, что, вследствие релятивистского расщирения, рождение быстрых пионов инициировано нуклонами падаюших дейтронов, импульсы которых являются больщими. Для раэличных реакций хорощо воспроиэводятся эависимость поперечных сечений отA и импульсные конфигурации.
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Bertocchi, L., Treleani, D. Proton stripping and pion production in relativistic deuteron-nucleus collisions. Nuov Cim A 36, 1–22 (1976). https://doi.org/10.1007/BF02724564
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DOI: https://doi.org/10.1007/BF02724564