Branching fractions of $$B^-\rightarrow D^-X_{0,1}(2900)$$ and their implications
نویسندگان
چکیده
The exotic states $X_{0,1}(2900)$ with the quark flavor of $cs\bar{u}\bar{d}$ are recently observed in mass spectrum $D^+K^-$ $B^-\to D^-D^+K^-$ by LHCb collaboration. To explore nature $X_{0,1}(2900)$, except for analyzing their masses and decay widths as usually did literatures, study production mechanism $B$-meson weak decays would provide another important information. amplitude D^- X_{0,1}$ is non-factorizable. We consider final-state-interaction effects calculate them via rescattering mechanism. measured branching fractions revealed. It manifested ${B}^-\to \Lambda_c^-\Xi_c^{(\prime)0}$ $\Lambda_b^0\to P_c^+K^-$ that can result relatively large fractions. similar processes \pi^-X_{0,1}$ also analyzed. isospins $X_{0,1}$ be investigated $B\to DX_{0,1}^{\pm,0}$ decays.
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ژورنال
عنوان ژورنال: European Physical Journal C
سال: 2021
ISSN: ['1434-6044', '1434-6052']
DOI: https://doi.org/10.1140/epjc/s10052-021-08857-8