Study of the CKM angle ? sensitivity using flavor untagged decays *

Abstract A sensitivity study on the measurement of CKM angle from {{B^0_s}}\rightarrow \tilde{D}^{(*)0}\phi decays is conducted using D- meson reconstructed in quasi flavour-specific modes K\pi , K3\pi and K\pi{{\pi^{0}}} as well CP -eigenstate KK \pi\pi where notation \tilde{D}^0 corresponds to a {{D^0}} or {{{\kern 0.2em\overline{\kern -0.2em D}{}}{}^0}} meson. The LHCb experiment presented use case. statistical uncertainty approximately $8^{\circ}-19^{\circ}$?> can be achieved with pp collision data collected 2011 2018. should order $3^{\circ}-8^{\circ}$?> after accumulating 23 fb -1 by 2025, whereas it expected improve further 300 second half 2030 decade. accuracy dependent strong parameters {{r^{(*)}_{B}}} {{\delta^{(*)}_{B}}} which together describe interference between leading amplitudes decays.