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Invoked by the recent observation of Y(4390) at BESIII, which is about 40 MeV below the \({D^{*}}(2010){\bar{D}}_1(2420)\) threshold, we investigate possible bound and resonance states from the \({D^{*}}(2010){\bar{D}}_1(2420)\) interaction with the one-boson-exchange model in a quasipotential Bethe–Salpeter equation approach. A bound state with quantum number \(0^-(1^{-\,-})\) is ...

Eur. Phys. J. C
**Dian**-**Yong** **Chen** 0
0 Department of Physics, Southeast University , Nanjing 210094 , People's Republic of China
In the present work, we propose Y (4140) as the χc1(3 P) state by

Eur. Phys. J. C
**Dian**-**Yong** **Chen** 0
0 Department of Physics, Southeast University , Nanjing 210094 , People's Republic of China
In the present work, we propose Y (4140) as the χc1(3 P) state by

In this work, we investigate the hadronic loop contributions to the \(\Upsilon (6S) \rightarrow \chi _{bJ} \phi ~(J=0,1,2)\) along with \(\Upsilon (6S) \rightarrow \chi _{bJ} \omega ~(J=0,1,2)\) transitions. We predict that the branching ratios of \(\Upsilon (6S) \rightarrow \chi _{b0} \phi \), \(\Upsilon (6S) \rightarrow \chi _{b1} \phi \) and \(\Upsilon (6S) \rightarrow \chi ...

In this work, we investigate the $X(3915)$ and $Z(3930)$ decays into $J/\psi \omega$ with the $\chi _{c0}^\prime (2P)$ and $\chi _{c2}^\prime (2P)$ assignments to $X(3915)$ and $Z(3930)$, respectively. The results show that the decay width of $Z(3930)\to J/\psi \omega$ is at least one order smaller than that of $X(3915)\to J/\psi \omega$. This observation explains why only one ...

Newly observed two charmed-strange resonances, \(D_{s1}^*(2860)\) and \(D_{s3}^*(2860)\) , are investigated by calculating their Okubo–Zweig–Iizuka-allowed strong decays, which shows that they are suitable candidates for the \(1^3D_1\) and \(1^3D_3\) states in the charmed-strange meson family. Our study also predicts other main decay modes of \(D_{s1}^*(2860)\) and ...

Inspired by the similarity between the mass gaps of the \(J/\psi \) and \(\Upsilon \) families, the prediction of a missing higher charmonium with mass 4,263 MeV and very narrow width is made. In addition, the properties of two charmonium-like states, \(X(3940)\) and \(X(4160)\), and charmonium \(\psi (4415)\) are discussed, where our calculation shows that \(X(3940)\) as \(\eta ...

Inspired by the recent observation of the charged charmoniumlike structure \(Z_c(4025)\), we explore the \(Y(4260)\rightarrow (D^*\bar{D}^*)^- \pi ^+\) decay through the initial-single-pion-emission mechanism, where the \(D^*\bar{D}^*\rightarrow D^*\bar{D}^*\) interaction is studied by the ladder approximation, including the non-interacting case. Our calculation of the differential ...