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  • 标题:Testing the predicted dynamically generated hidden charm X scalar state through the DDbar invariant mass spectrum
  • 本地全文:下载
  • 作者:D. GAMERMANN ; E. Oset ; B.S. Zou
  • 期刊名称:PoS - Proceedings of Science
  • 印刷版ISSN:1824-8039
  • 出版年度:2009
  • 卷号:2009
  • 出版社:SISSA, Scuola Internazionale Superiore di Studi Avanzati
  • 摘要:In this work we present our model that dynamically generates resonances from charmed and light pseudoscalar and vector mesons. The model generates a rich spectrum of charmed and hidden charm scalar and axial resonances, most of them which can be associated with observed states. Other states are predicted, in particular a hidden charm scalar resonance with mass close to the D¯D threshold. For this resonance we present calculations which show that an observed enhancement in the D¯D mass spectrum measured by Belle in reactions producing D¯DJ/y in the final state could be originated by this predicted state. We also present theoretical calculations on the radiative decay width of they(3770) into this state. The predicted branching fractions suggest that this predicted state could be observed by BES with statistics of one year run in the y(3770) peak.
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