Microscopic analysis of K{sup +}-nucleus elastic scattering based on K{sup +}-nucleon phase shifts
- Departamento de Fisica, Facultad de Ciencias Fisicas y Matematicas, Universidad de Chile, Casilla 487-3, Santiago (Chile)
We investigate K{sup +}-nucleus elastic scattering at intermediate energies within a microscopic optical model approach using the current K{sup +}-nucleon (KN) phase shifts from the Center for Nuclear Studies of the George Washington University as primary input. The KN phase shifts are used to generate Gel'fand-Levitan-Marchenko real and local inversion potentials. These potentials are supplemented with a short-range, complex separable term in such a way that the corresponding unitary and nonunitary KN S matrices are exactly reproduced. These KN potentials allow us to calculate all needed on- and off-shell contributions of the t matrix, the driving effective interaction in the full-folding K{sup +}-nucleus optical model potentials reported here. Elastic scattering of positive kaons from {sup 6}Li, {sup 12}C, {sup 28}Si, and {sup 40}Ca are studied at beam momenta in the range 400-1000 MeV/c, leading to a fair description of most differential and total cross section data. To complete the analysis of the full-folding model, three kinds of simpler t{rho} calculations are considered and the results are discussed.
- OSTI ID:
- 20698927
- Journal Information:
- Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 2 Vol. 72; ISSN 0556-2813; ISSN PRVCAN
- Country of Publication:
- United States
- Language:
- English
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