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- W4288804527 abstract "In this work, a study of possible molecular states from the $Lambda_cbar{Lambda}_c$ interaction and their productions in nucleon-antinucleon collision is performed in a quasipotential Bethe-Salpeter equation approach. Two bound states with quantum numbers $J^{PC}=0^{-+}$ and $1^{--}$ are produced with almost the same binding energy from the $Lambda_cbar{Lambda}_c$ interaction which is described by the light meson exchanges. However, the result does not support the assignment of experimentally observed $Y(4630)$ as a $Lambda_cbar{Lambda}_c$ molecular state because it is hard to obtain a peak near experimental mass of the $Y(4630)$ which is far above the $Lambda_cbar{Lambda}_c$ threshold. The possibility to search these states in nucleon-antinucleon collision is studied by including couplings to $Nbar{N}$ and $D^{(*)}bar{D}^{(*)}$ channels. The peaks can be found obviously near the $Lambda_cbar{Lambda}_c$ threshold in the $D^*bar{D}^*$ channel at an order of amplitude of 10 $mu$b. Too small width of state with $0^{-+}$ may lead to the difficulty to be observed in experiment. Based on the results in the current work, search for the $Lambda_cbar{Lambda}_c$ molecular state with $1^{--}$ is suggested in process $Nbar{N}to D^*bar{D}^*$, which is accessible at $rm bar{P}ANDA$." @default.
- W4288804527 created "2022-07-30" @default.
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- W4288804527 date "2022-07-28" @default.
- W4288804527 modified "2023-09-29" @default.
- W4288804527 title "Possible $Lambda_cbar{Lambda}_c$ molecular states and their productions in nulceon-antinulceon collision" @default.
- W4288804527 doi "https://doi.org/10.48550/arxiv.2207.13957" @default.
- W4288804527 hasPublicationYear "2022" @default.
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