Elsevier

Physics Letters B

Volume 166, Issue 3, 16 January 1986, Pages 279-281
Physics Letters B

Line widths of antiprotonic atoms

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Abstract

The line widths of p atoms are described by annihilation probabilities on protons and neutrons, instead of a complex optical potential.

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    The value of Rb, smaller than Rs, reflects the dominance of p-wave absorption in p̄D at all target densities [231]. It is corroborated by fits to low-energy scattering data resulting in Rp=0.35 and 0.2 for the p-wave [147, 148]. Level energies of bound states in the Coulomb field of a nucleus are obtained from the relativistic approach as given by the Dirac and the Klein–Gordon equation for fermions and bosons, respectively, together with the contributions from QED and recoil corrections.

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On sabbatical leave from Arizona State University, Tempe, AZ 85287, USA.

We are pleased to thank Dr. H. Poth for his comments on the manuscript.

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