X(3872) revisited: the roles of OPEP and the quark degrees of freedom
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| Main Authors: | , , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866914813133717504 |
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| author | Takeuchi, Sachiko Yamaguchi, Yasuhiro Hosaka, Atsushi Takizawa, Makoto |
| author_facet | Takeuchi, Sachiko Yamaguchi, Yasuhiro Hosaka, Atsushi Takizawa, Makoto |
| contents | The $X(3872)$ is investigated by employing the quark-hadron hybrid model, that consists of the $c\bar c$ core, $D^{(*)}\bar D{}^*$, $J/ψω$, and $J/ψρ$ two-meson states. Due to the attraction from the $c\bar c$-$D\bar D{}^*$ coupling and from the OPEP tensor coupling, a very thin peak can appear at the $D^{0}\bar D{}^{*0}$ threshold. The energy of the corresponding pole of the scattering matrix is $E=(+0.06-0.14i)$ MeV, which is on the physical sheet and above the threshold, the same as the one of the poles from the LHCb data analysis. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2405_16794 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | X(3872) revisited: the roles of OPEP and the quark degrees of freedom Takeuchi, Sachiko Yamaguchi, Yasuhiro Hosaka, Atsushi Takizawa, Makoto High Energy Physics - Phenomenology The $X(3872)$ is investigated by employing the quark-hadron hybrid model, that consists of the $c\bar c$ core, $D^{(*)}\bar D{}^*$, $J/ψω$, and $J/ψρ$ two-meson states. Due to the attraction from the $c\bar c$-$D\bar D{}^*$ coupling and from the OPEP tensor coupling, a very thin peak can appear at the $D^{0}\bar D{}^{*0}$ threshold. The energy of the corresponding pole of the scattering matrix is $E=(+0.06-0.14i)$ MeV, which is on the physical sheet and above the threshold, the same as the one of the poles from the LHCb data analysis. |
| title | X(3872) revisited: the roles of OPEP and the quark degrees of freedom |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2405.16794 |