Production of neutral kaons and lambdas from charged kaon interactions with complex nuclei
- Univ. of Illinois, Urbana-Champaign, IL (United States)
Measurements of the cross sections for the production of neutral kaons with momenta ≳ 400 MeV/c and lambdas with momenta ≳ 700 MeV/c from charged kaon interactions incident at 850 MeV/c on carbon, aluminum, copper, tin, and lead were made at the Argonne National Laboratory Zero-Gradient Synchrotron. The measurements were made in order to determine which complex -3 nuclear targets produced the best "beams" of neutral kaons, for use in an experiment to observe the decay of neutral K mesons into π+π- . The cross sections are presented, and models for fitting the data, involving A 1/3 and A 2/3 -parameterizations, are discussed. The K° and $$\bar{K}$$° cross sections are fit about equally well with an A 1/3 and A 2/3 -parameterization. Monte Carlo computer codes were written to see whether the experimental cross sections could be understood on the basis of a simple impulse approximation model. Relative cross sections computed with the Monte Carlo codes agree reasonably well, after experimental cuts were included, with the experimental cross sections for K° and $$\bar{K}$$° production. The agreement is not very good for Λ production, but a possible explanation for the disagreement is discussed. For a fixed-length target, 7 cm long, copper is found to be best for producing the most intense "beams" of neutral kaons and lambdas.
- Research Organization:
- Univ. of Illinois at Urbana-Champaign, IL (United States)
- Sponsoring Organization:
- US Atomic Energy Commission (AEC)
- DOE Contract Number:
- AT(11-1)-1195.
- NSA Number:
- NSA-26-028833
- OSTI ID:
- 4920273
- Report Number(s):
- COO-1195-231
- Resource Relation:
- Other Information: Thesis. UNCL
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ALUMINIUM
ANTIKAONS NEUTRAL
CARBON
COPPER
CROSS SECTIONS
DECAY
EMISSION
GEV RANGE 100-1000
KAON BEAMS
KAONS MINUS
KAONS NEUTRAL
KAONS PLUS
LAMBDA PARTICLE BEAMS
LAMBDA PARTICLES
LEAD
MEV RANGE 100-1000
MOMENTUM
NUCLEAR REACTIONS
PARTICLE PRODUCTION
PIONS MINUS
PIONS PLUS
SYNCHROTRONS
TARGETS
TIN
N54600* -Particle Accelerators-Experimental Facilities
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N64120 -Physics (High Energy)-Particle Interactions & Properties (Experimental)-Weak