Production of protons with momenta 0. 2--0. 5 GeV/c emitted backward in the lab in p-barA interactions at 40 GeV/c

Journal Article · Sat Aug 01 04:00:00 EDT 1987 · Sov. J. Nucl. Phys. (Engl. Transl.); (United States)

OSTI ID:5159083

A five-meter streamer chamber with internal nuclear targets has been used to study the production of protons with momenta 0.2--0.5 GeVc emitted into the backward hemisphere in the lab in p-barA interactions at 40 GeVc. It has been established that the fraction of events with backward-emitted protons is proportional to A/sup 1/3 , where A is the mass number of the target nucleus. On the average for every two slow protons emitted into the forward hemisphere in the lab, one proton is emitted into the backward hemisphere, regardless of the nucleus. In the distributions of the number of backward-emitted protons, and also of negatively charged particles, N/sub p/ scaling is observed, in agreement with the additive quark model. It is shown that the intranuclear cascade plays an important role in the production of backward-emitted protons

• Research Organization: Institute of High Energy Physics, Serpukhov
• OSTI ID: 5159083
• Journal Information: Sov. J. Nucl. Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Nucl. Phys. (Engl. Transl.); (United States) Vol. 46:2; ISSN SJNCA
• Country of Publication: United States
• Language: English

Related Subjects

651100* -- Nuclear Physics-- Experimental Techniques-- (1980-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BACKSCATTERING
BARYON REACTIONS
BARYONS
CHARGED-PARTICLE REACTIONS
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
GEV RANGE
GEV RANGE 10-100
HADRON REACTIONS
HADRONS
INELASTIC SCATTERING
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
NUCLEONS
PARTICLE PRODUCTION
PROTON REACTIONS
PROTONS
SCATTERING