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- W4310632326 abstract "We propose that the $X(3915)$ observed in the $J/psi,omega$ channel is the same state as the $chi_{c2}(3930)$, and the $X(3960)$, observed in the $D_s^+D_s^-$ channel, is an $S$-wave $D_s^+ D_s^-$ hadronic molecule. In addition, the $J^{PC}=0^{++}$ {component in the $B^+to D^+D^-K^+$} assigned to the $X(3915)$ in the current Review of Particle Physics has the same origin as the $X(3960)$, which has a mass around 3.94 GeV. To check the proposal, the available data in the $Dbar D$ and $D_s^+ D_s^-$ channels from both $ B$ decays and $gammagamma$ fusion reaction are analyzed considering both the $Dbar D$-$D_sbar D_s$-$D^*bar D^*$-$D_s^*bar D_s^*$ coupled channels with $0^{++}$ and a $2^{++}$ state introduced additionally. It is found that all the data in different processes can be simultaneously well reproduced, and the coupled-channel dynamics produce four hidden-charm scalar molecular states with masses around 3.73, 3.94, 3.99 and 4.23 GeV, respectively. The results may deepen our understanding of the spectrum of charmonia as well as of the interactions between charmed hadrons." @default.
- W4310632326 created "2022-12-13" @default.
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- W4310632326 date "2022-12-01" @default.
- W4310632326 modified "2023-09-26" @default.
- W4310632326 title "Understanding the $0^{++}$ and $2^{++}$ charmonium(-like) states near 3.9 GeV" @default.
- W4310632326 doi "https://doi.org/10.48550/arxiv.2212.00631" @default.
- W4310632326 hasPublicationYear "2022" @default.
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