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- W4384112043 abstract "In this article, the strong coupling constants of vertices $BBUpsilon$, $BB^{*}Upsilon$, $B^{*}B^{*}Upsilon$, $BB^{*}eta_{b}$ and $B^{*}B^{*}eta_{b}$ are analyzed in the framework of QCD sum rules. In this work, all possible off-shell cases and the contributions of vacuum condensate terms including $langleoverline{q}qrangle$, $langleoverline{q}g_{s}sigma Gqrangle$, $langle g_{s}^{2}G^{2}rangle$, $langle f^{3}G^{3}rangle$ and $langleoverline{q}qranglelangle g_{s}^{2}G^{2}rangle$ are considered. The momentum dependent strong coupling constants are first calculated and then are fitted into analytical functions $g(Q^{2})$ which are used to extrapolate into time-like regions to obtain the final values of strong coupling constants. The final results are $g_{BBUpsilon}=40.67^{+7.55}_{-4.20}$, $g_{BB^{*}Upsilon}=11.58^{+2.19}_{-1.09}$ GeV$^{-1}$, $g_{B^{*}B^{*}Upsilon}=57.02^{+5.32}_{-5.31}$, $g_{BB^{*}eta_{b}}=23.39^{+4.74}_{-2.30}$ and $g_{B^{*}B^{*}eta_{b}}=12.49^{+2.12}_{-1.35}$ GeV$^{-1}$. These strong coupling constants are important input parameters which reflect the dynamic properties of the interactions among the mesons and quarkonia." @default.
- W4384112043 created "2023-07-13" @default.
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- W4384112043 date "2023-07-11" @default.
- W4384112043 modified "2023-10-12" @default.
- W4384112043 title "The strong vertices of bottom mesons $B$, $B^{*}$ and bottomonia $Upsilon$, $eta_{b}$" @default.
- W4384112043 doi "https://doi.org/10.48550/arxiv.2307.05090" @default.
- W4384112043 hasPublicationYear "2023" @default.
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