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arXiv · 1712.06416

Antiproton-nucleus quasi-bound states within the 2009 version of the Paris $\bar{N}N$ potential

Jaroslava Hrtánková·Jiří Mareš
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Abstract

We studied the ${\bar p}$ interactions with the nuclear medium within the 2009 version of the Paris ${\bar N}N$ potential model. We constructed the $\bar{p}$--nucleus optical potential using the Paris $S$- and $P$-wave ${\bar p}N$ scattering amplitudes and treated their strong energy and density dependence self-consistently. We considered a phenomenological $P$-wave term as well. We calculated $\bar{p}$ binding energies and widths of the $\bar{p}$ bound in various nuclei. The $P$-wave potential has very small effect on the calculated ${\bar p}$ binding energies, however, it reduces the corresponding widths noticeably. Moreover, the $S$-wave potential based on the Paris amplitudes supplemented by a phenomenological $P$-wave term yields the ${\bar p}$ binding energies and widths in very good agreement with those obtained within the RMF model consistent with ${\bar p}$-atom data.

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Jaroslava Hrtánková, Jiří Mareš. 2017-12-18. Antiproton-nucleus quasi-bound states within the 2009 version of the Paris $\bar{N}N$ potential. https://doi.org/10.1051/epjconf%2F201818101007

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