Di-$J/ψ$ structures from the quark Pauli-blocking effect
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arXiv
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| Auteurs principaux: | , , , |
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866909699965714432 |
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| author | Takeuchi, Sachiko Hosaka, Atsushi Takizawa, Makoto Yamaguchi, Yasuhiro |
| author_facet | Takeuchi, Sachiko Hosaka, Atsushi Takizawa, Makoto Yamaguchi, Yasuhiro |
| contents | The double-charmonium scattering states such as $J/ψJ/ψ$, $η_cJ/ψ$, and $η_cη_c$ are investigated by a simplified quark cluster model. It is found that the quark Pauli-principle over the $c\bar c c\bar c$ system causes a rapid increase and a node in the two-meson phase shifts. The increase is not large enough to be regarded as a resonance, but if it is seen experimentally, that is most likely the quark Pauli-blocking effect. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2507_16752 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Di-$J/ψ$ structures from the quark Pauli-blocking effect Takeuchi, Sachiko Hosaka, Atsushi Takizawa, Makoto Yamaguchi, Yasuhiro High Energy Physics - Phenomenology Nuclear Theory The double-charmonium scattering states such as $J/ψJ/ψ$, $η_cJ/ψ$, and $η_cη_c$ are investigated by a simplified quark cluster model. It is found that the quark Pauli-principle over the $c\bar c c\bar c$ system causes a rapid increase and a node in the two-meson phase shifts. The increase is not large enough to be regarded as a resonance, but if it is seen experimentally, that is most likely the quark Pauli-blocking effect. |
| title | Di-$J/ψ$ structures from the quark Pauli-blocking effect |
| topic | High Energy Physics - Phenomenology Nuclear Theory |
| url | https://arxiv.org/abs/2507.16752 |