The Decays of $B^{+}\to {\bar{D}}^0+D_{sJ}^{+}(2S)$ and $B^{+}\to {\bar{D}}^0+D_{sJ}^{+}(1D)$

Abstract

We analyzed the decays of $B^{+}\to {\bar{D}}^0+D_{sJ}^{+}(2S)$ and $B^{+}\to {\bar{D}}^0+D_{sJ}^{+}(1D)$ by naive factorization method and model dependent calculation based on the Bethe-Salpeter method, the branching ratios are $Br({\bar{D}}^0{D}_{sJ}^{+}(2S))=(0.72\pm 0.12)$ and $Br({\bar{D}}^0{D}_{sJ}^{+}(1D))=(0.027\pm 0.007)$. The branching ratio of decay $B^{+}\to {\bar{D}}^0{D}_{sJ}^{+}(2S)\to {\bar{D}}^0{D}^0{K}^{+}$ consist with the data of Belle Collaboration, so we conclude that the new state $D_{sJ}^{+}(2700)$ is the first excited state $D_{sJ}^{+}(2S)$.

9 pages, 3 figures