Study of CKM angle $\gamma$ sensitivity using flavor untagged $B^0_s\rightarrow \tilde{D}^{(*)0}\phi$ decays
Study of CKM angle $\gamma$ sensitivity using flavor untagged $B^0_s\rightarrow \tilde{D}^{(*)0}\phi$ decays
复制标题
使用未标记的风味 $B^0_s ightarrow ilde{D}^{(*)0}phi$ 衰减研究 CKM 角度 $gamma$ 灵敏度
DOI：
10.1088/1674-1137/abd16d
复制
发表时间：
2020
期刊：
影响因子：
--
通讯作者：
Shunan Zhang
中科院分区：
文献类型：
--
作者：
Xiaokang Zhou;D. Decamp;S. T’Jampens;V. Tisserand;H. Sazak;S. Ricciardi;W. Qian;Zirui Wang;Zhenwei Yang;D. Ao;Shunan Zhang
A sensitivity study for the measurement of the CKM angle $\gamma$ from $B^0_s\rightarrow \tilde{D}^{(*)0}\phi$ decays is performed using $D$ meson reconstructed in the quasi flavour-specific modes $K\pi$, $K3\pi$, $K\pi\pi^0$, and \CP-eigenstate modes $KK$ and $\pi\pi$, where the notation $\tilde{D}^0$ corresponds to a $D^0$ or a $\bar{D}^0$ meson. The LHCb experiment is taken as a use case. With realistic assumptions on the detector performance, a statistical uncertainty of about $9-21^{\circ}$ can be achieved with the $pp$ collision data collected by the LHCb experiment from 2011 to 2018. The accuracy depends on the strong parameters $r^{(*)}_{B}$ and $\delta^{(*)}_{B}$, describing, together with $\gamma$, the interference between the leading amplitudes of the $B^0_s\rightarrow \tilde{D}^{(*)0}\phi$ decays.
A sensitivity study for the measurement of the CKM angle $\gamma$ from $B^0_s\rightarrow \tilde{D}^{(*)0}\phi$ decays is performed using $D$ meson reconstructed in the quasi flavour-specific modes $K\pi$, $K3\pi$, $K\pi\pi^0$, and \CP-eigenstate modes $KK$ and $\pi\pi$, where the notation $\tilde{D}^0$ corresponds to a $D^0$ or a $\bar{D}^0$ meson. The LHCb experiment is taken as a use case. With realistic assumptions on the detector performance, a statistical uncertainty of about $9-21^{\circ}$ can be achieved with the $pp$ collision data collected by the LHCb experiment from 2011 to 2018. The accuracy depends on the strong parameters $r^{(*)}_{B}$ and $\delta^{(*)}_{B}$, describing, together with $\gamma$, the interference between the leading amplitudes of the $B^0_s\rightarrow \tilde{D}^{(*)0}\phi$ decays.