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AbstractAbstract
[en] Inelastic pion excitation of the 0+ (7.65-MeV) level in 12C is studied using a Kisslinger optical potential in both a distorted-wave impulse approximation and a coupled-channels formalism. Inclusion of coupling through the first excited 2+ state in 12C causes a dramatic suppression of this cross section for pion energies below 75 MeV. This explains the unexpectedly small 01/sup ts+/ cross sections recently observed, and may permit detailed testing of pion-nucleus reaction theories
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Record Type
Journal Article
Journal
Physical Review Letters; v. 41(16); p. 1101-1104
Country of publication
ANGULAR MOMENTUM, BOSONS, CARBON ISOTOPES, ELEMENTARY PARTICLES, ENERGY RANGE, EVEN-EVEN NUCLEI, HADRON REACTIONS, HADRONS, ISOTOPES, LIGHT NUCLEI, MATHEMATICAL MODELS, MESON REACTIONS, MESONS, MEV RANGE, NUCLEAR REACTIONS, NUCLEI, PARTICLE PROPERTIES, PIONS, PSEUDOSCALAR MESONS, SCATTERING, STABLE ISOTOPES, TARGETS
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