Possible existence of charmonium-light-nucleus bound states

Akira Yokota, Emiko Hiyama, Makoto Oka

Research output: Contribution to journalConference article

Abstract

The relations between two-body charmonium(cc)-nucleon(N) scattering length a and the binding energies of (cc) bound states in few-nucleon systems are studied. We adopt a Gaussian potential as an effective (cc)-N interaction. The results show that a ≤-0:95 fm is needed to form a (cc)-deuteron bound state. Also, a (cc)-4He and a (cc)-8Be bound states exist for a ≤-0:24 fm and α ≤-0:16 fm, respectively. Comparing our results with the recent lattice QCD data of α, we see that (cc)-nucleus bound states may exist for the nuclei with A ≥ 4.

Original languageEnglish
JournalProceedings of Science
Publication statusPublished - Jan 1 2013
Event15th International Conference on Hadron Spectroscopy, Hadron 2013 - Nara, Japan
Duration: Nov 4 2013Nov 8 2013

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nuclei
deuterons
quantum chromodynamics
binding energy
scattering
interactions

All Science Journal Classification (ASJC) codes

  • General

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Possible existence of charmonium-light-nucleus bound states. / Yokota, Akira; Hiyama, Emiko; Oka, Makoto.

In: Proceedings of Science, 01.01.2013.

Research output: Contribution to journalConference article

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N2 - The relations between two-body charmonium(cc)-nucleon(N) scattering length a and the binding energies of (cc) bound states in few-nucleon systems are studied. We adopt a Gaussian potential as an effective (cc)-N interaction. The results show that a ≤-0:95 fm is needed to form a (cc)-deuteron bound state. Also, a (cc)-4He and a (cc)-8Be bound states exist for a ≤-0:24 fm and α ≤-0:16 fm, respectively. Comparing our results with the recent lattice QCD data of α, we see that (cc)-nucleus bound states may exist for the nuclei with A ≥ 4.

AB - The relations between two-body charmonium(cc)-nucleon(N) scattering length a and the binding energies of (cc) bound states in few-nucleon systems are studied. We adopt a Gaussian potential as an effective (cc)-N interaction. The results show that a ≤-0:95 fm is needed to form a (cc)-deuteron bound state. Also, a (cc)-4He and a (cc)-8Be bound states exist for a ≤-0:24 fm and α ≤-0:16 fm, respectively. Comparing our results with the recent lattice QCD data of α, we see that (cc)-nucleus bound states may exist for the nuclei with A ≥ 4.

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