Multiplicity of charged particles produced in collisions of. pi. /sup -/ and K/sup -/ mesons with nuclei in a streamer chamber at 40 GeV/c

Journal Article · Mon Mar 01 04:00:00 EST 1982 · Sov. J. Nucl. Phys. (Engl. Transl.); (United States)

OSTI ID:6804136

Results are presented on the multiplicities of charged particles of various signs produced in interactions of ..pi../sup -/ and K mesons with Li, C, S, Cu, Cs(I) and Pb nuclei (range of mass numbers A from 7 to 207). The average multiplicity of negatively charged particles in hadron-nucleon interactions, normalized to the average multiplicity of negatively charged particles in hadron-nucleon interactions, R/sup -/ = /sub h/A/ /sub h/N, is approximated by the relation R/sup -/ = (0.78 +- 0.06) +(0.32 +- 0.04)nu-bar. On the contrary, the normalized average multiplicity of all charged particles, R/sup ch/ = /sub h/A//sub h/N, is approximated by a relation with a much larger slope: R/sup ch/ = (0.18 +- 0.10)+(0.85 +- 0.06)nu-bar. Here nu-bar = Asigma/sub h/N/sigma/sub h/A is a quantity usually interpreted as the average number of inelastic collisions of the hadron in the nucleus. Comparison of the multiplicities of fast (with momentum exceeding 0.5 GeV/c) positively and negatively charged particles reveals an excess of positively charged particles, which increases with increasing A. The ratio of the standard deviation to the average multiplicity is practically independent of A in the multiplicity distributions of the negatively charged particles.

• OSTI ID: 6804136
• Journal Information: Sov. J. Nucl. Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Nucl. Phys. (Engl. Transl.); (United States) Vol. 35:3; 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
ALKALI METALS
CARBON
CESIUM
CHARGED PARTICLES
CHARGED-PARTICLE REACTIONS
COPPER
DATA
ELEMENTS
ENERGY RANGE
EXPERIMENTAL DATA
GAS TRACK DETECTORS
GEV RANGE
GEV RANGE 10-100
HADRON REACTIONS
INFORMATION
KAON MINUS REACTIONS
KAON REACTIONS
LEAD
LITHIUM
MEASURING INSTRUMENTS
MESON REACTIONS
METALS
MULTIPLE PRODUCTION
MULTIPLICITY
NONMETALS
NUCLEAR REACTIONS
NUMERICAL DATA
PARTICLE PRODUCTION
PION MINUS REACTIONS
PION REACTIONS
RADIATION DETECTORS
SPARK CHAMBERS
STREAMER SPARK CHAMBERS
SULFUR
TRANSITION ELEMENTS