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Pion-induced elastic and inelastic scattering above the 3,3 resonance

Journal Article · · Physical Review, C (Nuclear Physics); (United States)
 [1];  [2]
  1. Departamento Fisica Teorica and Instituto de Fisica Corpuscular, Centro Mixto Universidad de Valencia Consejo Superior de Investigaciones Cientificas, E-46100 Burjassot (Valencia), Spain (ES)
  2. Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (USA)
Results of Glauber model calculations of elastic and inelastic scattering from {sup 12}C, {sup 18}O, {sup 40}Ca, and {sup 48}Ca of pions having energy of 300 to 1200 MeV are presented. Experimental {pi}{ital N} phase shifts including {ital l}=0 through 5 are used in the calculation. The {ital f} wave is important above 300 MeV and the {ital g} and {ital h} wave above 900 MeV. Effects of spin flip are included. The model reasonably reproduces the 800 MeV/{ital c} data of Marlow although the inelastic scattering of the 2{sup +} of {sup 12}C requires an enhancement of the quadrupole component consistent with the effective charge. The previously observed anomaly in {sup 12}C in which a much larger oscillator parameter was required in pion scattering than in electron scattering disappears at higher energy. The {sigma}({pi}{sup {minus}}{ital n}) to {sigma}({pi}{sup +}{ital n}) ratio is found to be appreciably different from expectations based on pion scattering from free nucleons.
OSTI ID:
5462578
Journal Information:
Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 44:1; ISSN 0556-2813; ISSN PRVCA
Country of Publication:
United States
Language:
English