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Nuclear surface studies with antiprotonic atom X-rays

S. Wycech·F. J. Hartmann·J. Jastrzebski·B. Klos·A. Trzcinska·T. von Egidy
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Abstract

The recent and older level shifts and widths in pbar atoms are analyzed. The results are fitted by an antiproton-nucleus optical potential with two basic complex strength parameters. These parameters are related to average S and P wave scattering parameters in the subthreshold energy region. A fair consistency of the X-ray data for all Z values, stopping pbar data and the Nbar-N scattering data has been achieved. The determination of neutron density profiles at the nuclear surface is undertaken, and the determination of the neutron R_{rms} radii is attempted. Uncertainties due to the input data and the procedure are discussed.

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S. Wycech, F. J. Hartmann, J. Jastrzebski, B. Klos, A. Trzcinska, T. von Egidy. 2007-02-08. Nuclear surface studies with antiprotonic atom X-rays. https://doi.org/10.1103/physrevc.76.034316

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