Abstract
The x-ray cascade from antiprotonic atoms was studied for and . Widths and shifts of the levels due to the strong interaction were determined. Using modern antiproton-nucleus optical potentials, the neutron densities in the nuclear periphery were deduced. Assuming two-parameter Fermi distributions (2pF) describing the proton and neutron densities, the neutron rms radii were deduced for both nuclei. The difference of neutron and proton rms radii equal to fm for and fm for were determined, and the assigned systematic errors are discussed. The values and the deduced shapes of the neutron distributions are compared with mean field model calculations.
8 More- Received 26 February 2007
DOI:https://doi.org/10.1103/PhysRevC.76.014311
©2007 American Physical Society