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arXiv · 2007.04476

$η_{c}$-nucleus bound states

J. J. Cobos-Martínez·K. Tsushima·G. Krein·A. W. Thomas
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Abstract

$η_c$-nucleus bound state energies are calculated for various nuclei. Essential input for the calculations, namely the medium-modified $D$ and $D^{*}$ meson masses, as well as the density distributions in nuclei, are calculated within the quark-meson coupling (QMC) model. The attractive potentials for the $η_c$ meson in the nuclear medium originate from the in-medium enhanced $DD^{*}$ loops in the $η_c$ self-energy. Our results suggest that the $η_c$ meson should form bound states with all the nuclei considered.

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J. J. Cobos-Martínez, K. Tsushima, G. Krein, A. W. Thomas. 2020-11-04. $η_{c}$-nucleus bound states. https://doi.org/10.1016/j.physletb.2020.135882

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