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- W2011337051 abstract "We report on further evidence that the $Y(3940)$ and the recently observed $Y(4140)$ are heavy hadron molecule states with quantum numbers ${J}^{PC}={0}^{++}$. The $Y(3940)$ state is considered to be a superposition of ${D}^{*+}{D}^{*ensuremath{-}}$ and ${D}^{*0}overline{{D}^{*0}}$, while the $Y(4140)$ is a bound state of ${D}_{s}^{*+}$ and ${D}_{s}^{*ensuremath{-}}$ mesons. For the first time we give predictions for the strong $Y(3940)ensuremath{rightarrow}J/ensuremath{psi}ensuremath{omega}$, $Y(4140)ensuremath{rightarrow}J/ensuremath{psi}ensuremath{phi}$ and radiative $Y(3940)/Y(4140)ensuremath{rightarrow}ensuremath{gamma}ensuremath{gamma}$ decay widths in a phenomenological Lagrangian approach. Results for the strong $J/ensuremath{psi}V$ ($V=ensuremath{omega}$, $ensuremath{phi}$) decays clearly support the molecular interpretation of the $Y(3940)$ and $Y(4140)$. The alternative assignment of ${J}^{PC}={2}^{++}$ is also tested, giving similar results for the strong decay widths." @default.
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- W2011337051 date "2009-09-21" @default.
- W2011337051 modified "2023-10-16" @default.
- W2011337051 title "Hadronic molecule structure of the<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mi>Y</mml:mi><mml:mo stretchy=false>(</mml:mo><mml:mn>3940</mml:mn><mml:mo stretchy=false>)</mml:mo></mml:math>and<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mi>Y</mml:mi><mml:mo stretchy=false>(</mml:mo><mml:mn>4140</mml:mn><mml:mo stretchy=false>)</mml:mo></mml:math>" @default.
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- W2011337051 doi "https://doi.org/10.1103/physrevd.80.054019" @default.
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