Analysis of the Ds3⁎(2860) as a D-wave cs¯ meson with QCD sum rules

In this article, we assign the Ds3⁎(2860) to be a D-wave cs¯ meson, and study the mass and decay constant of the Ds3⁎(2860) with the QCD sum rules by calculating the contributions of the vacuum condensates up to dimension-6 in the operator product expansion. The predicted mass MDs3⁎=(2.86±0.10) GeV is in excellent agreement with the experimental value MDs3⁎=(2860.5±2.6±2.5±6.0) MeV from the LHCb collaboration. The present prediction supports assigning the Ds3⁎(2860) to be the D-wave cs¯ meson.