Published 1970
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The parity rule and helicity conservation in diffraction dissociation

Creators

  • 1. UNESCO

Description

R e c e n t l y m u c h i n t e r e s t h a s b e e n d e v o t e d to t h e d i f f r a c t i o n p h e n o m e n a i n h i g h e n e r g y co l l i s ions (**). T h e p h e n o m e n o n w a s f i r s t o b s e r v e d i n s c a t t e r i n g a n d l a t e r f o u n d i u c e r t a i n i n e l a s t i c t w o b o d y r e a c t i o n s . T h e g e n e r a l c h a r a c t e r i s t i c s s u g g e s t e d b y t h e e x p e r i m e n t s a r e : 1) t h e p a r i t y r u l e p r o p o s e d b y MORRISON (~) (see F i g . 1 for n o t a t i o n ) : fo r p o m e r o n e x c h a n g e t h e p a r i t i e s ~,, ~ a n d t h e c h a n g e in s p i n A S = I s~ s~ / s a t i s f y the r e l a t i o n ~, ~o = = ( 1 ) a s ; 2) t h e s h e l i c i t y c o n s e r v a t i o n (***), r e c e n t l y p r o p o s e d b y GILMAN et al. (4). T h e s e c h a r a c t e r i s t i c s wil l b e d i s c u s s e d .
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