ISABELLE: a 400 x 400 GeV proton--proton colliding beam facility

Abstract

This r e p o r t was prepared a s an account of work sponsored by t h e United S t a t e s Government. Neither t h e U.S. nor t h e U.S. Department of Energy, n o r any of t h e i r employees, nor any of t h e i r c o n t r a c t o r s , s u b c o n t r a c t o r s , o r t h e i r employees, makes any warranty, express o r implied, o r assumes any l e g a l l i a b i l i t y o r r e s p o n s i b i l i t y f o r t h e accuracy, completeness o r u s e f u l n e s s of any information, a p p a r a t u s , product o r process d i s c l o s e d , o r r e p r e s e n t s t h a t i t s use would n o t i n f r i n g e p r i v a t e l y owned r i g h t s . PREFACE This i s t h e conceptual design r e p o r t f o r t h e c o n s t r u c t i o n of an I n t e r s e c t i n g Storage A c c e l e r a t o r , ISABELLE, t o be l o c a t e d a tBrookhaven National Laboratory. A t t h i s major r e s e a r c h f a c i l i t y beams of protons w i t h e n e r g i e s up t o 400 GeV w i l l be c o l l i d e d i n s i x experimental a r e a s . A t each a r e a p a r t i c l e p h y s i c i s t s w i l l i n s t a l l d e t e c t o r apparatus t o s t u d y t h e i n t e r a c t i o n and r e a c t i o n products f o r such very high energy c o l l i s i o n s . The p r o p o s a l r e s u l t s from s e v e r a l y e a r s of s t u d y and development work on such a f a c i l i t y . The encouragement and s u s t a i n e d support of t h e Department of Energy previously ERDA) i s g r a t e f u l l y acknowledged. I n d i v i d u a l s from t h e A c c e l e r a t o r and Physics departments of '.Brookhaven have done t h e d e t a i l e d work involved i n preparing t h i s document. Their work has been made e a s i e r by t h e r e s u l t s of numerous Workshops i n which f u t u r e u n i v e r s i t y u s e r s of t h e f a c i l i t y p a r t i c i p a t e d . S p e c i a l r e c o g n i t i o n should be given t o t h e e f f o r t s of H. Hahn, who headed t h e ISABELLE Division during t h e p a s t few years. Preliminary conceptual design work w a s organized by M. Barton w i t h physics motivation from t h e Physics Department, c h a i r e d by N. Samios.