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Pion-nucleus single-charge exchange above the resonance

Journal Article · · Physical Review, C (Nuclear Physics); (USA)
 [1];  [2]
  1. Departamento Fisica Teorica, Centro Mixto Universidad de Valencia Consejo Superior de Investigaciones Cientificas, Burjassot (Valencia) (Spain) Instituto de Fisica Corpuscular, Centro Mixto Universidad de Valencia Consejo Superior de Investigaciones Cientificas, Burjassot (Valencia) (Spain)
  2. Theoretical Division, Los Alamos National Laboratory, Los Alamos, NM (USA)
The excitation function for the ({pi}{sup +},{pi}{sup 0}) reaction on {sup 7}Li and {sup 14}C to analog states in {sup 7}Be and {sup 14}N in the range of 250 to 650 MeV pion kinetic energy is calculated. The Glauber model with microscopic shell-model wave functions is used. The effects of antisymmetry and spin flip were explicitly evaluated; experimental {pi}{ital N} partial waves up to {ital l}=3 were included in the calculation. The calculated cross section is too large compared to experiment. The effects of two- and three-body pion absorption are calculated and found to reduce the calculated cross section by a small amount to values nearer experiment.
OSTI ID:
6040631
Journal Information:
Physical Review, C (Nuclear Physics); (USA), Journal Name: Physical Review, C (Nuclear Physics); (USA) Vol. 42:6; ISSN 0556-2813; ISSN PRVCA
Country of Publication:
United States
Language:
English