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arXiv · 1308.6102

Possible Existence of Charmonium-Nucleus Bound States

Akira Yokota·Emiko Hiyama·Makoto Oka
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Abstract

Possible existence of $(c\bar{c})-$nucleus bound states are examined. We adopt Gaussian potentials for the $η_{c}-N$ and $J/ψ-N$ interactions. The relations between the scattering lengths $a$ of $(c\bar{c})-N$ interactions and the binding energies of $η_{c}-NN$, $J/ψ-NN$ and $J/ψ-^{4}$He are given. The results show that scattering lengths $a \le -0.95$ fm are needed to make $η_{c}-NN$ and $J/ψ-NN$ bound states, while for $a \le -0.24$ fm there may exist a $J/ψ-^{4}$He bound state.

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Akira Yokota, Emiko Hiyama, Makoto Oka. 2013-08-28. Possible Existence of Charmonium-Nucleus Bound States. https://doi.org/10.1093/ptep%2Fptt087

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