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The European Physical Journal C

, Volume 50, Issue 3, pp 617–628 | Cite as

DsJ(2860) and DsJ(2715)

  • Bo Zhang
  • Xiang LiuEmail author
  • Wei-Zhen Deng
  • Shi-Lin Zhu
Regular Article - Theoretical Physics

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.

Keywords

Decay Mode Decay Width Total Width Helicity Amplitude Decay Amplitude 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2007

Authors and Affiliations

  • Bo Zhang
    • 1
  • Xiang Liu
    • 1
    Email author
  • Wei-Zhen Deng
    • 1
  • Shi-Lin Zhu
    • 1
  1. 1.Department of PhysicsPeking UniversityBeijingP.R. China

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