Analysis of the behavior of. pi. /sup -/ mesons and protons produced in nucleus--nucleus interactions at 4. 2 GeV/c per nucleon as a function of the number of protons taking part in the interaction

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

OSTI ID:5955906

Agakishiev, G N; Backovic, S; Boldea, V; Dica, S; Grishin, V G; Kanarek, T; Kladnitskaya, E N; Simic, L

A two-meter propane bubble chamber has been used to study the production of pions and protons in inelastic dC, HeC, CC, and multinucleon CC collisions at momentum 4.2 GeV/c per nucleon. The concept of total charge of an event (Q) has been used to determine the number of interacting protons. The multiplicity of ..pi.. mesons and the momentum and angular characteristics of ..pi../sup -/ mesons and protons have been analyzed as functions of the number of interacting protons. The data obtained are compared with calculations according to the Dubna cascade model. It is shown that this model qualitatively reproduces the dependences of the average momenta < p>, the rapidity , and the emission angle of ..pi../sup -/ mesons and protons on Q in the observed interactions. The existing discrepancies of the calculated and experimentally measured values decrease with increase of the mass number of the incident nucleus. The model poorly describes the dependence of the average transverse momentum < p/sub perpendicular/> of ..pi../sup -/ mesons on Q, and in reproduction of the dependence of < p/sub perpendicular/> on Q for protons it does not achieve even qualitative agreement.

• Research Organization: Joint Institute for Nuclear Research
• OSTI ID: 5955906
• Journal Information: Sov. J. Nucl. Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Nucl. Phys. (Engl. Transl.); (United States) Vol. 45:5; ISSN SJNCA
• Country of Publication: United States
• Language: English

Related Subjects

651320* -- Nuclear Properties &amp; Reactions
A=6-19
Experimental
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALKANES
ALPHA REACTIONS
ANGULAR DISTRIBUTION
BARYONS
BOSONS
BUBBLE CHAMBERS
CARBON
CARBON 12 REACTIONS
CASCADE THEORY
CHARGED-PARTICLE REACTIONS
DATA
DEUTERON REACTIONS
DISTRIBUTION
ELEMENTARY PARTICLES
ELEMENTS
ENERGY RANGE
EXPERIMENTAL DATA
FERMIONS
GAS TRACK DETECTORS
GEV RANGE
GEV RANGE 01-10
GEV RANGE 10-100
HADRONS
HEAVY ION REACTIONS
HEAVY LIQUID BUBBLE CHAMBERS
HYDROCARBONS
INFORMATION
MEASURING INSTRUMENTS
MESONS
MULTIPLE PRODUCTION
MULTIPLICITY
NONMETALS
NUCLEAR REACTIONS
NUCLEONS
NUMERICAL DATA
ORGANIC COMPOUNDS
PARTICLE PRODUCTION
PIONS
PIONS MINUS
PROPANE
PROTONS
PSEUDOSCALAR MESONS
RADIATION DETECTORS