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Neutron radii of calcium isotopes from pion total cross section measurements

Journal Article · · Phys. Rev. Lett.; (United States)
Measurements of the total cross section differences sigma/sub T/(/sup 48/Ca) - sigma/sub T/(/sup 40/Ca) and sigma/sub T/(/sup 44/Ca) - sigma/sub T/(/sup 44/Ca) are reported for positive and negative pions. Optical-model calculations are used to extract values of the rms neutron radius difference for each isotope pair. For /sup 48/Ca-/sup 40/Ca the deduced radius difference agrees with the results of recent ..cap alpha..-particle and proton scattering experiments but is smaller than values predicted from Hartree-Fock calculations.
Research Organization:
University of Montana, Missoula, Montana 59801
OSTI ID:
7109585
Journal Information:
Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 38:21; ISSN PRLTA
Country of Publication:
United States
Language:
English