Analysis of the strong decays D-s3* (2860) -> DK, D*K with QCD sum rules

作者：Wang, Zhi-Gang^*

来源：European Physical Journal A, 2016, 52(10): 303.

DOI：10.1140/epja/i2016-16303-y

• RESONANCE PHYSICS
• D-SJ(2860)
• STATES

In this article, we assign the D-s3*(2860) to be a D-wave c (s) over bar meson, study the hadronic coupling constants G(Ds3*(2860) DK) and G(Ds3*(2860)D*K) with the three-point QCD sum rules, and calculate the partial decay widths Gamma(D-s3*(2860) -> D*K) and Gamma(D-s3*(2860) -> DK). The predicted ratio R = Gamma(D-s3*(2860) -> D*K)/Gamma(D-s3*(2860) -> DK) = 0.57 +/- 0.38 cannot reproduce the experimental value R = Br(D-sJ*(2860) -> D*K)/Br(D-sJ*(2860) -> DK) = 1.10 +/- 0.15 +/- 0.19.

• 出版日期2016-10-3
• 单位华北电力大学; 华北电力大学（保定）