English

Interaction of antiprotons with nuclei

Nuclear Theory 2017-11-29 v1

Abstract

We report on self-consistent calculations of pˉ\bar{p} quasi-bound states in selected nuclei performed within the relativistic mean-field (RMF) model employing pˉ\bar{p} coupling constants tuned to reproduce pˉ\bar{p}-atom data. We confirmed considerable polarization of the nuclear core induced by the antiproton. The pˉ\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 pˉ{\bar p}-nucleus system. Next, we constructed the pˉ\bar{p}-nucleus optical potential using scattering amplitudes related to the latest version of the Paris NˉN\bar{N}N potential. We explored energy dependence of the potential and the implications for pˉ\bar{p}-nucleus quasi-bound states.

Keywords

Cite

@article{arxiv.1711.10258,
  title  = {Interaction of antiprotons with nuclei},
  author = {Jaroslava Hrtánková and Jiří Mareš},
  journal= {arXiv preprint arXiv:1711.10258},
  year   = {2017}
}

Comments

6 pages, 3 figures, proceedings of the LEAP2016 conference