Interaction of antiprotons with nuclei

Abstract

We report on self-consistent calculations of $\bar{p}$ quasi-bound states in selected nuclei performed within the relativistic mean-field (RMF) model employing $\bar{p}$ coupling constants tuned to reproduce $\bar{p}$-atom data. We confirmed considerable polarization of the nuclear core induced by the antiproton. The $\bar{p}$ annihilation was treated dynamically, taking into account the reduced phase space in the nuclear medium as well as the compressed nuclear density. The energy available for the annihilation products was evaluated self-consistently, considering additional energy shift due to particle momenta in the $\bar{p}$-nucleus system. Next, we constructed the $\bar{p}$-nucleus optical potential using scattering amplitudes related to the latest version of the Paris $\bar{N}N$ potential. We explored energy dependence of the potential and the implications for $\bar{p}$-nucleus quasi-bound states.

arXiv comment6 pages, 3 figures, proceedings of the LEAP2016 conference

References in corpus (8)

• Effective kaon mass in dense baryonic matter: role of correlations
• Paris nucleon-antinucleon potential constrained by recent antiprotonic-atom data and antineutron-proton total cross sections
• Chirally motivated K^- nuclear potentials
• Antibaryons bound in nuclei
• Antiproton-nucleus potentials from global fits to antiprotonic X-rays and radiochemical data
• Calculations of $K^{-}$ nuclear quasi-bound states based on chiral meson-baryon amplitudes
• Possibility of cold nuclear compression in antiproton-nucleus collisions
• Interaction of antiprotons with nuclei