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- W2949243419 abstract "In this paper it is proposed that the charged charmonium-like state $Z_c(3900)$ is a resonance near threshold from the $Dbar{D}^*$ interaction. The $Dbar{D}^*$ interaction is studied in one-bosn-exchange model with light meson exchanges plus a short-range $J/psi$ exchange. The scattering amplitude is calculated within a Bethe-Saltpeter equation approach and the poles near the $Dbar{D}^*$ threshold are searched. In isoscalar sector, two poles found under the $Dbar{D}^*$ threshold, $i. e.$, bound states, have quantum numbers $I^G(J^{PC})=0^-(1^{+-})$ and $0^+(1^{++})$. The latter can be related to the $X(3872)$. In the isovector sector, a bound state with $1^+(1^+)$ is found with a large cut off. If a cut off is adopted with which a pole carrying quantum number of the $X(3872)$ is produced at energy about 3871 MeV, the pole for the bound state with $1^+(1^+)$ runs across the threshold to second Rienman sheet and becomes a resonance near the $Dbar{D}^*$ threshold, which can be identified with the $Z_c(3900)$. With such cute off, the $Dbar{D}^{*}$ invariant mass spectrum is also investigated and the experimental results by BESIII can be reproduced." @default.
- W2949243419 created "2019-06-27" @default.
- W2949243419 creator A5076333042 @default.
- W2949243419 date "2015-05-20" @default.
- W2949243419 modified "2023-09-27" @default.
- W2949243419 title "The $Z_c(3900)$ as a resonance from the $Dbar{D}^*$ interaction" @default.
- W2949243419 hasPublicationYear "2015" @default.
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