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arXiv 1908.00757hep-ph
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B介子衰变中作为D*0(2P)和D*0(3P)的D*0(2400)、D*J(3000)的产生率

Rates of $D^{*}_{0}(2400)$, $ D_J^*(3000) $ as the $D^{*}_{0}(2P)$ and $D^{*}_{0}(3P)$ in $B$ Decays

Xiao-Ze Tan, Yue Jiang, Tianhong Wang, Tian Zhou, Geng Li, Zi-Kan Geng, Guo-Li Wang

AI总结:

本文用瞬时Bethe-Salpeter方法计算B介子衰变中轨道激发标量D0*的产生率,验证1P态与实验一致,并揭示D*0(2P)波函数节点结构导致其分支比被抑制。

摘要:

本文采用瞬时Bethe-Salpeter方法计算B介子衰变中轨道激发标量D0*的半轻子和非轻子产生。当末态为1P态D0*(2400)时,我们的理论衰变率与实验数据一致。对于最近由LHCb合作组观测到、本文将其视为轨道激发标量D*0(2P)的D*J(3000)末态,其产生率量级为10^-4至10^-6。我们发现D*0(2P)波函数特殊的节点结构可能导致其分支比受到抑制并产生异常的不确定性。3P态的产生率量级为10^-5。

英文摘要:

In this paper, we use the instantaneous Bethe-Salpeter method to calculate the semi-leptonic and non-leptonic production of the orbitally excited scalar $ D_0^* $ in $ B $ meson decays. When the final state is $ 1P $ state $ D_0^*(2400) $, our theoretical decay rate is consistent with experimental data. For $ D_J^*(3000) $ final state, which was observed by LHCb collaboration recently and here treated as the orbitally excited scalar $D^{*}_{0}(2P)$, its rate is in the order of $ 10^{-4} \sim 10^{-6}$. We find the special node structure of $D^{*}_{0}(2P)$ wave function possibly results in the suppression of its branching ratio and the abnormal uncertainty. The $3P$ states production rate is in the order of $ 10^{-5}$.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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