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Pion elastic and inelastic scattering from /sup 40,42,44,48/Ca and /sup 54/Fe

Thesis/Dissertation ·
OSTI ID:5220276
Differential cross sections were measured for pion elastic and inelastic scattering from /sup 40,42,44,48/Ca and /sup 54/Fe at T/sub ..pi../ = 116.0, 180.0, and 292.5 MeV. The ground states were analyzed using a Kisslinger potential with and without free parameters. The low-lying collective states were analyzed using a distorted wave impulse approximation with no free parameters and transition densities obtained from electron and proton scattering data. These analyses adequately reproduced the pion scattering data. Ground-state neutron density rms radii were estimated and compared with a theoretical calculation and analyses of proton, alpha, pion, and pionic x-ray data. Proton and neutron multipole matrix elements were extracted from the 2/sub 1//sup +/ and 3/sub 1//sup -/ states in /sup 42,44,48/Ca and compared with tabulated electromagnetic matrix elements. Model-dependent errors are examined by comparing the results of calculations using collective-model form factors with those using form factors fitted to electron and proton scattering data.
Research Organization:
Texas Univ., Austin (USA)
OSTI ID:
5220276
Country of Publication:
United States
Language:
English