Antiproton-nucleus quasi-bound states within the 2009 version of the Paris (N)over-barN potential

0495696 - ÚJF 2019 RIV FR eng C - Konferenční příspěvek (zahraniční konf.)
Óbertová, Jaroslava - Mareš, Jiří
Antiproton-nucleus quasi-bound states within the 2009 version of the Paris (N)over-barN potential.
EPJ Web of Conferences. Vol. 181. Les Ulis: EDP Science, 2018, č. článku 01007. ISSN 2101-6275.
[International Conference on Exotic Atoms and Related Topics (EXA 2017). Vienna (AT), 11.09.2017-15.09.2017]
Grant CEP: GA ČR(CZ) GA15-04301S
Institucionální podpora: RVO:61389005
Klíčová slova: Paris N- N potential model * calculation * p-
Obor OECD: Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)

We studied the p- interactions with the nuclear medium within the 2009 version of the Paris N-N potential model. We constructed the p- -nucleus optical potential using the Paris S - and P-wave 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 p- binding energies and widths of the p- bound in various nuclei. The P-wave potential has very small effect on the calculated 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 p- binding energies and widths in very good agreement with those obtained within the RMF model consistent with p- -atom data.
Trvalý link: http://hdl.handle.net/11104/0288633