In the light of the latest measurements on the total $e^{+}+e^{-}$ flux by CALET and DAMPE experiments, we revisit the multicomponent leptonically decaying dark matter (DM) explanations to the cosmic-ray electron/positron excesses observed previously. Especially, we use the single and double-component DM models to explore the compatibility of the AMS-02 positron fraction with the new CALET or DAMPE data. As a result, for either the AMS-02 + CALET dataset or the AMS-02 + DAMPE one, both the single and double-component DM models can provide reasonable fits. If we further take into the diffuse γ-ray constraints from Fermi-LAT, only the double-component DM models are allowed.

结合最新的测量结果 ${Ë}^{+}+{Ë}^{-}$通过CALET和DAMPE实验，我们对先前观察到的宇宙射线电子/正电子过量的多组分轻子衰变暗物质（DM）进行了解释。特别是，我们使用单组分和双组分DM模型来探索AMS-02正电子组分与新的CALET或DAMPE数据的兼容性。结果，对于AMS-02 + CALET数据集或AMS-02 + DAMPE数据集，单分量和双分量DM模型都可以提供合理的拟合。如果我们进一步考虑Fermi-LAT的散射γ射线约束，则仅允许使用双组分DM模型。