Annihilation of antiprotons on nuclear targets at low energies: a simple analysis

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We set up a plane wave impulse approximation (PWIA) formalism for the analysis of the annihilation cross sections of antinucleons on nuclear targets at very low momenta (below 100 MeV/c), where semiclassical approximations can't be applied. Since, as we test here, PWIA fails in reproducing the unexpected ``inversion'' behavior of the $\bar{p}p$ and $\bar{p}-$nucleus annihilation cross sections found in a recent experiment\cite{obe1,obe2} we discuss some further possibilities, with a special attention to the optical potential model.
48 pages, 5 figures

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Nuclear Theory

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http://salesiana.dossiersoluciones.com/handle/123456789/83269

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/nucl-th/9910031
 http://arxiv.org/abs/nucl-th/9910031

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arXiv