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Real-to-imaginary ratio for the\(\overline p \)-nucleon forward amplitude from low-energy\(\overline p \)-nucleus data and applicability of the Glauber theorydata and applicability of the Glauber theory

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Il Nuovo Cimento A (1965-1970)

Summary

Recent analyses of the antiproton-nucleus scattering below 600 MeV/c within the frame of the Glauber model are reviewed and discussed in their ability in determining unambiguously the antiproton-nucleon scattering parameters, in particular the ratio\(\rho _n = \operatorname{Re} f_n (0)/\operatorname{Im} f_n (0)\) for the antiproton-neutron scattering amplitude. Also in the light of new data, the model is confirmed to work well at 600 MeV/c, while it loses reliability at 300 MeV/c. At this momentum it reproduces well total cross-sections and the gross features of differential cross-sections, but not their behaviour in the minima. Consequently it allows to determine the scattering amplitude parameters σn andβ 2n , but not ρ n.

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  1. A. Zenoni

    Present address: Dipartimento di Fisica Nucleare e Tecnica, Università di Pavia, Pavia

Authors and Affiliations

  1. Dipartimento di Fisica Nucleare e Teorica, Università di Pavia, Pavia

    G. Bendiscioli & A. Rotondi

  2. INFN, Sezione di Pavia, Pavia

    G. Bendiscioli & A. Rotondi

  3. CERN/EP, Geneva, Switzerland

    A. Zenoni

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Bendiscioli, G., Rotondi, A. & Zenoni, A. Real-to-imaginary ratio for the\(\overline p \)-nucleon forward amplitude from low-energy\(\overline p \)-nucleus data and applicability of the Glauber theorydata and applicability of the Glauber theory. Nuov Cim A 104, 59–80 (1991). https://doi.org/10.1007/BF02822266

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