PRESENTATION OF THE HADRON SPECTROSCOPY PARALLEL SESSIONS

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Submitted on 1 Jan 1973

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PRESENTATION OF THE HADRON SPECTROSCOPY PARALLEL SESSIONS

R. Barloutaud

To cite this version:

R. Barloutaud. PRESENTATION OF THE HADRON SPECTROSCOPY PARALLEL SESSIONS.

Journal de Physique Colloques, 1973, 34 (C1), pp.C1-211-C1-211. �10.1051/jphyscol:1973120�. �jpa-

00215200�

PRESENTATION OF THE HADRON SPECTROSCOPY PARALLEL SESSIONS

PRESENTATION OF THE HADRON SPECTROSCOPY PARALLEL SESSIONS

R

.

A t t h i s Conference, f o u r p a r a l l e l s e s s i o n s have been devoted t o Hadron Spectroscopy. A s a m a t t e r of f a c t , t h e l i m i t s of t h i s t o p i c a r e not w e l l defined.

C l e a r l y t h e baryon and meson resonances r e s u l t s ob- t a i n e d i n f o r m a t i o n and production experiments cons- t i t u t e a p a r t of Hadron Spectroscopy ; f u r t h e r m o r e i t seems r e a s o n a b l e t h a t t h e meson o r baryon d i f f r a c - t i v e enhancements which a r e more and more b e l i e v e d now t o be non r e s o n a n t should a l s o be d i s c u s s e d i n t h i s s e s s i o n . However i t i s almost impossible t o se- p a r a t e t h e s t u d y of t h e n a t u r e and s p i n p a r i t y pro- p e r t i e s of t h e s e o b j e c t s from t h e s t u d y of t h e i r pro- d u c t i o n mechanism ; a l a r g e o v e r l a p i s t h e r e f o r e un- a v o i d a b l e w i t h t h e s e s s i o n 8 where t h e s e mechanisms a r e d i s c u s s e d . I n t h e same way, t h e mini-rapport of D r . Faiman ( s e s s i o n 6), where t h e new t h e o r e t i c a l i d e a concerning t h e baryon c l a s s i f i c a t i o n a r e presen- t e d i s obviously s t r o n g l y connected w i t h Hadron Spec- t r o s c o p y . F i n a l l y , I would l i k e t o a p o l o g i z e f o r t h e numerous i n t e r e s t i n g t h e o r e t i c a l papers ( p a p e r s n o 211, 322, 323, 32, 8 9 , 233, 234, 373) which a l s o d e a l w i t h t h i s s e s s i o n and have n o t been r e p o r t e d t h e r e i n by l a c k of s p a c e , and I suggest t h a t t h e s p e c i a l i s t s c o n s u l t them d i r e c t l y .

I n each p a r a l l e l s e s s i o n , m i n i - r a p p o r t e u r s have t r i e d t o summarize t h e p a p e r s s e n t t o t h e Conference and t o e x t r a c t t h e most important i n f o r m a t i o n o u t of them. The s e v e r a l s e s s i o n s have been t h e f o l l o w i n g :

1 ) Meson resonances

Mini-rapporteur : V. Chaloupka 2 ) ^XK and Kx s c a t t e r i n g

Mini-rapporteurs : G. Laurens J.L. Basdevant 3 ) Baryon resonances

Mini-rapporteurs : P. Bareyre P. L i t c h f i e l d 4 ) D i f f r a c t i v e and kinematic enhancements

Mini-rapporteurs : H. J. L u b a t t i (see session8) G. O t t e r

G. Cohen-Tannoud ji A s a c o o r d i n a t o r of t h e Hadron Spectroscopy s e s - s i o n s , I would l i k e t o thank a l l t h e p h y s i c i s t s who have t a k e n p a r t t o them and i n p a r t i c u l a r t o e x p r e s s t h e p l e a s u r e I had t o work w i t h I . Butterworth. I am a l s o q u i t e g r a t e f u l t o a l l mini-rapporteurs who managed t o w r i t e t h e i r r e p o r t i n a very l i m i t e d a- mount of t i m e and a l s o t o t h e t h r e e s e c r e t a r i e s , G. T r i s t r a m , J.L. L a v i l l e , and F. V a z e i l l e who wor- ked very e f f i c i e n t l y i n t h e p r e p a r a t i o n of t h e s e proceedings.

Article published online by EDP Sciences and available at http://dx.doi.org/10.1051/jphyscol:1973120