Abstract
Newly observed two charmed-strange resonances, $D_{s1}^*(2860)$ and $D_{s3}^*(2860)$, are investigated by calculating their Okubo-Zweig-Iizuka allowed strong decays, which shows that they are suitable candidates for the $1^3D_1$ and $1^3D_3$ states in the charmed-strange meson family. Our study also predicts other main decay modes of $D_{s1}^*(2860)$ and $D_{s3}^*(2860)$, which can be accessible at the future experiment. In addition, the decay behaviors of the spin partners of $D_{s1}^*(2860)$ and $D_{s3}^*(2860)$, i.e., $1D(2^-)$ and $1D^\prime(2^-)$, are predicted in this work, which are still missing at present. Experimental search for the missing $1D(2^-)$ and $1D^\prime(2^-)$ charmed-strange mesons is an intriguing and challenging task for further experiment.
Highlights
Very recently the LHCb Collaboration has released a new observation of an excess around 2.86 GeV in the D 0 K − invariant mass spectrum of Bs0 → D 0 K −π +, which can be an admixture of spin-1 and spin-3 resonances corresponding to Ds∗1(2860) and Ds∗3(2860) [1,2], respectively
With the observation of two charmed-strange resonances Ds1(2860) and Ds3(2860), which was recently announced by the LHCb Collaboration [1,2], the observed charmedstrange states become more and more abundant
We have carried out a study of the observed Ds1(2860) and Ds3(2860), which indicates that Ds1(2860) and Ds3(2860) can be well categorized as 13 D1 and 13 D3 states in the charmed-strange meson family since the experimental widths of Ds1(2860) and Ds3(2860) can be reproduced by the corresponding calculated total widths of the 13 D1 and 13 D3 states
Summary
Very recently the LHCb Collaboration has released a new observation of an excess around 2.86 GeV in the D 0 K − invariant mass spectrum of Bs0 → D 0 K −π +, which can be an admixture of spin-1 and spin-3 resonances corresponding to Ds∗1(2860) and Ds∗3(2860) [1,2], respectively. [5], Ds J (2860) is suggested as a 13 D3 csmeson This explanation was supported by the study of the effective Lagrangian approach [6,7], the. Ds J (2860) as a mixture of charmed-strange states was given in Refs. Besides the above explanations under the conventional charmed-strange meson framework, Ds J (2860) was explained as a multiquark exotic state [15]. Ds J (2860) as a J P = 0+ charmed-strange meson was suggested in Ref. This scalar charmed-strange meson cannot decay into D∗ K [5], which contradicts the BaBar’s observation of Ds J (2860) in its D∗ K decay channel [3]. The decay behaviors of other missing 2P charmed-strange mesons in experiment were given in Ref. The decay behaviors of other missing 2P charmed-strange mesons in experiment were given in Ref. [16]
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