Hypernuclei and interactions of kaons with nuclei
Recent experimental and theoretical progress in hypernuclear physics is reviewed. Different models for hyperon-nucleus central and spin-orbit potentials are compared: several models yield a very small spin-orbit strength for the ..lambda.., as experimentally observed, but differ considerably in their predictions for the ..sigma... The new data on the /sup 13/C hypernuclear spectrum, as obtained in the (K/sup -/, ..pi../sup -/) strangeness exchange reaction at 800 MeV/c, are discussed. It is shown how one extracts constraints on the ..lambda..-nucleus and effective ..lambda..-nucleon ineractions from the data. The new BNL data on the (K/sup -/, ..pi../sup +/) reaction at 720 MeV/c, leading to ..sigma..-hypernuclear states, are examined. The case of /sup 6/Li(K/sup -/, ..pi../sup +/)/sup 6/H is discussed in some detail, and some speculations concerning the (K/sup -/, ..pi../sup +/) reaction on other targets are presented. The physical mechanisms which may lead to unusually narrow ..sigma.. excitations in some systems are examined. Finally, the physics motivations for several future hypernuclear experiments which are already under development, such as (K/sup -/, ..pi../sup -/..gamma..) and ..pi../sup + -/, K/sup +/) studies, or under preliminary consideration, for instance, the (K/sup -/, K/sup +/) reaction producing S=-2 hypernuclei are reviewed.
- Research Organization:
- Brookhaven National Lab., Upton, NY (USA)
- DOE Contract Number:
- AC02-76CH00016
- OSTI ID:
- 6182826
- Report Number(s):
- BNL-29774; CONF-810747-1; ON: DE81028467; TRN: 81-015687
- Resource Relation:
- Conference: 9. international conference on high energy physics and nuclear structure, Versailles, France, 6 Jul 1981
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
CARBON 13 TARGET
KAON MINUS REACTIONS
HYPERNUCLEI
LITHIUM 6 TARGET
KAON-NUCLEON INTERACTIONS
L-S COUPLING
MEV RANGE 100-1000
CHARGED-PARTICLE REACTIONS
COUPLING
ENERGY RANGE
HADRON REACTIONS
HADRON-HADRON INTERACTIONS
INTERACTIONS
INTERMEDIATE COUPLING
KAON REACTIONS
MESON REACTIONS
MESON-BARYON INTERACTIONS
MESON-NUCLEON INTERACTIONS
MEV RANGE
NUCLEAR FRAGMENTS
NUCLEAR REACTIONS
NUCLEI
PARTICLE INTERACTIONS
TARGETS
645104* - High Energy Physics- Particle Interactions & Properties-Experimental- Strong Meson-Induced Interactions- (-1987)