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DsJ(2860) and DsJ(2715)

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Abstract

Recently the Babar Collaboration reported a new cs̄ state, DsJ(2860), and the Belle Collaboration observed DsJ(2715). We investigate the strong decays of the excited cs̄ states using the 3 P 0 model. After comparing the theoretical decay widths and decay patterns with the available experimental data, we are inclined to conclude that: (1) DsJ(2715) is probably the 1-(13 D 1) cs̄ state, although the 1-(23 S 1) assignment is not completely excluded; (2) DsJ(2860) seems unlikely to be the 1-(23 S 1) and 1-(13 D 1) candidate; (3) to consider DsJ(2860) either as a 0+(23 P 0) or as a 3-(13 D 3) cs̄ state is consistent with the experimental data; (4) the experimental search of DsJ(2860) in the channels Dsη, DK*, D*K and Ds *η will be crucial to distinguish the above two possibilities.

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Authors and Affiliations

  1. Department of Physics, Peking University, Beijing, 100871, P.R. China

    Bo Zhang, Xiang Liu, Wei-Zhen Deng & Shi-Lin Zhu

Authors
  1. Bo Zhang
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  2. Xiang Liu
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  3. Wei-Zhen Deng
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  4. Shi-Lin Zhu
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Corresponding author

Correspondence to Xiang Liu.

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PACS

13.25.Ft; 12.39.-x

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Zhang, B., Liu, X., Deng, WZ. et al. DsJ(2860) and DsJ(2715). Eur. Phys. J. C 50, 617–628 (2007). https://doi.org/10.1140/epjc/s10052-007-0221-y

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  • DOI: https://doi.org/10.1140/epjc/s10052-007-0221-y

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