Kaon inelastic scattering and charge exchange on nuclei

Journal Article · Sun Apr 01 04:00:00 EST 1979 · Phys. Rev., C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.19.1393· OSTI ID:6078206

Dover, C B; Walker, G E

We present the results of calculations of kaon inelastic and charge exchange reactions on nuclei, based on the microscopic particle-hole shell model. Both K/sup +/ and K/sup -/ inelastic scattering on /sup 12/C are discussed for incident momenta p/sub lab/ = 300 MeV/c and 800 MeV/c. In addition, we examine the charge exchange process /sup 30/Si(K/sup -/,K-bar/sup 0/)/sup 30/Al at 300 MeV/c. We employ the distorted wave impulse approximation, using a transition operator constructed from free space K/sup + -/-nucleon amplitudes taken from analyses of two-body data. For the off-shell extrapolation of the two-body t matrix, required in the many-body problem, we use a separable form factor obtained by solving the inverse scattering problem. The inelastic scattering results are found to be insensitive to the presence of the off-shell form factor. We find that normal parity T = 0 and 1 states dominate the nuclear response to both K/sup +/ and K/sup -/. At 300 MeV/c, some qualitative differences in the inelastic scattering predictions arise from choosing different elementary amplitudes from the literature. Thus kaon-nucleus scattering may shed some light on ambiguities in the low energy free space interactions of kaons. At 800 MeV/c, there is much less uncertainty in the two-body t matrix, so we can focus our attention on nuclear structure aspects. We compare the kaons with pions, electrons, protons, and ..cap alpha.. in terms of their inelastic scattering and charge exchange properties. By emphasizing nuclear structure aspects such as the excitation of high spin states and the splitting of the T/sub less-than/ and T/sub greater-than/ components of giant resonances, we show that kaons are very promising as a nuclear probe.

• Research Organization: Brookhaven National Laboratory, Upton, New York 11973
• OSTI ID: 6078206
• Journal Information: Phys. Rev., C; (United States), Journal Name: Phys. Rev., C; (United States) Vol. 19:4; ISSN PRVCA
• Country of Publication: United States
• Language: English

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALUMINIUM 30
ALUMINIUM ISOTOPES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CARBON 12 TARGET
CHARGE-EXCHANGE REACTIONS
CHARGED-PARTICLE REACTIONS
DISTORTED WAVE THEORY
ENERGY RANGE
FORM FACTORS
HADRON REACTIONS
IMPULSE APPROXIMATION
INELASTIC SCATTERING
ISOTOPES
KAON MINUS REACTIONS
KAON PLUS REACTIONS
KAON REACTIONS
LIGHT NUCLEI
MANY-BODY PROBLEM
MATHEMATICAL MODELS
MATRICES
MESON REACTIONS
MEV RANGE
MEV RANGE 100-1000
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEI
ODD-ODD NUCLEI
PARITY
PARTICLE PROPERTIES
RADIOISOTOPES
S MATRIX
SCATTERING
SECONDS LIVING RADIOISOTOPES
SHELL MODELS
SILICON 30 TARGET
TARGETS
TWO-BODY PROBLEM