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Improved optical-potential calculation of the elastic and charge-exchange scattering of intermediate-energy pions from the helium isotopes. [Total and differential cross sections]

Journal Article · · Phys. Rev., C; (United States)
The elastic scattering of intermediate energy pions from /sup 3/He and /sup 4/He and the single charge exchange scattering from /sup 3/He are calculated with a theoretical momentum space optical potential including spin, nucleon recoil, Fermi motion and binding, and a Lorentz-invariant angle transformation. Realistic nuclear form factors and a ..pi..N T matrix with a finite range are employed. An examination is made of the ..pi..-/sup 4/He and ..pi..-/sup 3/He total and differential cross section data of several experimental groups, and the possibility of extracting information on the magnetic moment form factor of /sup 3/He is investigated. Comparisons are made with the procedures and results of several theoretical groups to determine the relevant physical differences and the areas in need of improvement.
Research Organization:
Department of Physics, Oregon State University, Corvallis, Oregon 97331
OSTI ID:
7258995
Journal Information:
Phys. Rev., C; (United States), Journal Name: Phys. Rev., C; (United States) Vol. 15:6; ISSN PRVCA
Country of Publication:
United States
Language:
English