Characteristics of protons emitted into the backward hemisphere in pion-nuclear interactions

Journal Article · Tue Mar 01 04:00:00 EST 1977 · Sov. J. Nucl. Phys. (Engl. Transl.); (United States)

OSTI ID:7281501

Gornov, M G; Lapushkin, S V; Orlov, V I; Pichugin, A P; Ponosov, A K; Sergeev, F M

To study the mechanism of pion-nucleus collisions leading to emission of protons into the backward hemisphere, we have analyzed the characteristics of such protons arising in reactions induced by 3.9-GeV/c ..pi../sup -/ mesons. Stars with two protons emitted backwards are discussed in detail. Angular and momentum distributions are obtained, and also the distribution in the binding energy of the two protons in the backward hemisphere. The experimental data indicate that emission of the protons occurs independently of each other. The multiplicity of protons emitted backward, the total multiplicity of protons in the star, and the multiplicity of relativistic particles reveal simple mutual relationships which are close to linear. It is concluded that most protons with momentum greater than 250 MeV/c emitted from a nucleus in its disintegration, including protons in the backward hemisphere, are due to a single mechanism.

• Research Organization: Moscow Engineering-Physics Institute
• OSTI ID: 7281501
• Journal Information: Sov. J. Nucl. Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Nucl. Phys. (Engl. Transl.); (United States) Vol. 25:3; ISSN SJNCA
• Country of Publication: United States
• Language: English

Related Subjects

645104* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Strong Meson-Induced Interactions-- (-1987)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANGULAR DISTRIBUTION
BARYONS
BINDING ENERGY
CHARGED-PARTICLE REACTIONS
DISTRIBUTION
ELEMENTARY PARTICLES
ENERGY
ENERGY RANGE
FERMIONS
FREONS
GEV RANGE
GEV RANGE 01-10
HADRON REACTIONS
HADRONS
HALOGENATED ALIPHATIC HYDROCARBONS
INTERACTIONS
LINEAR MOMENTUM
MESON REACTIONS
MULTIPLE PRODUCTION
MULTIPLICITY
NUCLEAR REACTIONS
NUCLEONS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
PION MINUS REACTIONS
PION REACTIONS
PROTONS
REFRIGERANTS