Decays of the vector charmonium and bottomonium hybrids
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| Format: | Preprint |
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2025
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| _version_ | 1866914120534589440 |
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| author | Barsbay, B. |
| author_facet | Barsbay, B. |
| contents | The full widths of the vector charmonium and bottomonium hybrid mesons $H_{ \mathrm{c}}$ and $H_{\mathrm{b}}$, characterized by the quantum numbers $1^{ \mathrm{--}}$, are determined by analyzing their dominant strong decay modes: $H_{\mathrm{c}} \to D^{+}D^{-}$, $D_{0}\overline{D}_{0}$, $ D_{s}^{+}D_{s}^{-} $ and $H_{\mathrm{b}} \to B^{+}B^{-}$, $B_{0}\overline{B} _{0}$. To evaluate the partial widths of these channels, we employ the QCD three-point sum rule approach, which provides a reliable method for extracting the strong coupling constants at the relevant hybrid-meson-meson interaction vertices. Based on this analysis, the full widths of these hybrid quarkonia are found to be $Γ_{H_{\mathrm{c}}} =(234.1\pm 37.4)~ \mathrm{MeV} $ and $Γ_{H_{\mathrm{b}}} =(78.8\pm 15.4)~\mathrm{MeV} $ . These results are expected to facilitate the interpretation of future experimental data concerning the spectroscopy and decay patterns of exotic charmonium- and bottomonium-like hybrid mesons. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2506_00665 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Decays of the vector charmonium and bottomonium hybrids Barsbay, B. High Energy Physics - Phenomenology High Energy Physics - Experiment High Energy Physics - Lattice The full widths of the vector charmonium and bottomonium hybrid mesons $H_{ \mathrm{c}}$ and $H_{\mathrm{b}}$, characterized by the quantum numbers $1^{ \mathrm{--}}$, are determined by analyzing their dominant strong decay modes: $H_{\mathrm{c}} \to D^{+}D^{-}$, $D_{0}\overline{D}_{0}$, $ D_{s}^{+}D_{s}^{-} $ and $H_{\mathrm{b}} \to B^{+}B^{-}$, $B_{0}\overline{B} _{0}$. To evaluate the partial widths of these channels, we employ the QCD three-point sum rule approach, which provides a reliable method for extracting the strong coupling constants at the relevant hybrid-meson-meson interaction vertices. Based on this analysis, the full widths of these hybrid quarkonia are found to be $Γ_{H_{\mathrm{c}}} =(234.1\pm 37.4)~ \mathrm{MeV} $ and $Γ_{H_{\mathrm{b}}} =(78.8\pm 15.4)~\mathrm{MeV} $ . These results are expected to facilitate the interpretation of future experimental data concerning the spectroscopy and decay patterns of exotic charmonium- and bottomonium-like hybrid mesons. |
| title | Decays of the vector charmonium and bottomonium hybrids |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment High Energy Physics - Lattice |
| url | https://arxiv.org/abs/2506.00665 |