Study of. lambda. /sup +//sub c/ charmed baryons produced in neutron-carbon interactions at approx. 58 GeV

Journal Article · Wed Jun 01 04:00:00 EDT 1983 · Sov. J. Nucl. Phys. (Engl. Transl.); (United States)

OSTI ID:5003659

The BIS-2 spectrometer has been used in nC interactions at an average neutron energy near 58 MeV to observe the production of ..lambda../sup +//sub c/ charmed baryons decaying into K-bar/sup 0/p..pi../sup +/..pi../sup -/ and ..lambda../sup 0/..pi../sup +/..pi../sup +/..pi../sup -/. In the diffraction model of ..lambda../sup +//sub c/ production, estimates are obtained of the products of the production cross sections and the probabilities of the decays ..lambda../sup +//sub c/..-->..K-bar/sup 0/p..pi../sup +/..pi../sup -/ and ..lambda../sup +//sub c/..--> lambda../sup 0/..pi../sup +/..pi../sup +/..pi../sup -/, which are respectively 32.2 +- 4.4 and 5.5 +- 1.8 ..mu..b per carbon nucleus. The systematics errors are about 50%. It is found that the mass of the ..lambda../sup +//sub c/ is 2275 +- 15 MeV/c/sup 2/. The invariant distributions of ..lambda../sup +//sub c/ in the perpendicular and longitudinal momenta for X>0.4 are approximated respectively by exp((-2.2 +- 0.5)p/sub perpendicular/) and (1-x)/sup 1.2plus-or-minus0.2/ (p/sub perpendicular/ is in GeV/c).

• OSTI ID: 5003659
• Journal Information: Sov. J. Nucl. Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Nucl. Phys. (Engl. Transl.); (United States) Vol. 37:6; ISSN SJNCA
• Country of Publication: United States
• Language: English

Related Subjects

645103* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Strong Interactions & Baryon & Meson Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANTIKAONS
ANTIKAONS NEUTRAL
ANTIMATTER
ANTIMESONS
ANTIPARTICLES
BARYON REACTIONS
BARYON RESONANCES
BARYONS
BOSONS
CARBON
CHARM PARTICLES
CHARMED BARYON RESONANCES
CROSS SECTIONS
DATA
DECAY
DIFFRACTION MODELS
ELEMENTARY PARTICLES
ELEMENTS
ENERGY RANGE
EXPERIMENTAL DATA
FERMIONS
GEV RANGE
GEV RANGE 10-100
HADRON REACTIONS
HADRONIC PARTICLE DECAY
HADRONS
HYPERONS
INFORMATION
KAONS
KAONS NEUTRAL
LAMBDA PARTICLES
LAMBDA-2250 RESONANCES
MASS
MATHEMATICAL MODELS
MESONS
NEUTRON REACTIONS
NONMETALS
NUCLEAR REACTIONS
NUCLEON REACTIONS
NUCLEONS
NUMERICAL DATA
PARTICLE DECAY
PARTICLE MODELS
PARTICLE PRODUCTION
PIONS
PIONS MINUS
PIONS PLUS
POSTULATED PARTICLES
PROTONS
PSEUDOSCALAR ANTIMESONS
PSEUDOSCALAR MESONS
RESONANCE PARTICLES
REST MASS
STRANGE PARTICLES