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Title of Journal: Nuov Cim A

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Abbravation: Il Nuovo Cimento A (1965-1970)

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Società Italiana di Fisica

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DOI

10.1016/0040-4020(66)80156-4

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1826-9869

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Surface waves in pionproton elastic scattering

Authors: E Di Salvo G A Viano
Publish Date: 2008/01/22
Volume: 59, Issue: 1, Pages: 11-37
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Abstract

We present a phenomenological analysis of the pionproton elastic scattering at intermediate energies based on the theory of surface waves These are excited at the edge of the interaction region and propagate along it being damped in the direction of propagation Since at the energies we are working at the blackbody limit is not yet reached the surface waves can also take one or more shorteuts inside the interaction region This fact explains the enhancement of the crosssection backwards Many points of the theory can be phenomenologically checked and the interaction radius in the pionproton elastic collision can be numerically derivedМы проводим феноменологический анализ пионпротонного упругого рассеяния при промежуточных энергиях основанный на теории поверхностных волн Эти волны возбуждаются на краю области взаимодействия и распространяются вдоль нее затухая в направлении распространения Так как при рассматриваемых энергиях предел черного тела еще не достигается то поверхностные волны могут также определять один или несколько кратчайших путей внутри области взаимодействия Этот факт объясняет возрастание поперечного сечения рассеяния назад Предложенный подход позволяет феноменологически проверить многие вопросы теории и численно определить радиус взаимодействия в упругом соударении пиона с протономSi presenta unanalisi fenomenologica della collisione elastica pioneprotone ad energie intermedie basata sulla teoria delle onde superficiali Queste ultime sono eccitate al bordo della regione dinterazione e si propagano attorno ad essa attenuandosi nella direzione di propagazione Alle energie a cui si lavora si può assumere che la regione dinterazione non sia totalmente assorbente quindi alcune onde superficiali possono penetrare allinterno e percorrere delle «scorciatoire» Ciò permette di spiegare linnalzamento della sezione durto a grandi angoli Molti punti della teoria possono essere verificati fenomenologicamente Inoltre si può dedurre numericamente il raggio dinterazione nellurto clastico pioneprotone

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