Possibility of experimental study on nonleptonic $B_c^{\ast }$ weak decays

Abstract

The ground vector $B_c^{\ast }$ meson has not yet been experimentally discovered until now. Besides the dominant electromagnetic decays, nonleptonic weak decays provide another choice to search for the mysterious $B_c^{\ast }$ mesons. Inspired by the potential prospects of $B_c^{\ast }$ mesons in future high-luminosity colliders, nonleptonic $B_c^{\ast }$ weak decays induced by bottom and charm quark decays are studied within the SM by using a naive factorization approach. It is found that for $B_c^{\ast }$ $\to$ $B_{s,d}\pi$, $B_{s,d}^{\ast }\pi$, $B_{s,d}\rho$, $B_{s}K$, $B_s^{\ast }K$, $B_s{K}^{\ast }$, ${\eta }_c(1S,2S)\pi$, ${\eta }_c(1S,2S)\rho$ and $\psi (1S,2S)\pi$ decays, a few hundred and even thousand of events might be observable in CEPC, FCC-ee and LHCb@HL-LHC experiments.

18 pages

References in corpus (9)

• Branching fractions, polarisation and asymmetries of B -> VV decays
• Distribution amplitudes and decay constants for $(\pi ,K,\rho ,K^{\ast })$ mesons in light-front quark model
• Measurement of the Bc meson mass in the exclusive decay Bc --> Jpsi Pi
• The transition form factors for semi-leptonic weak decays of $J/\psi$ in QCD sum rules
• Study of $B_c^{-}$ $\to$ $J/\psi {\pi }^{-}$, ${\eta }_c{\pi }^{-}$ Decays with QCD Factorization
• Study of $B_c^{\ast }$ $\to$ $\psi (1S,2S)P$, ${\eta }_c(1S,2S)P$ weak decays
• Possibility of searching for $B_c^{\ast }$ $\to$ $B_{u,d,s}V$, $B_{u,d,s}P$ decays
• Searching $B_c^{\ast }$ via conservation laws
• Feasibility of searching for the Cabibbo-favored $D^{\ast }$ $\to$ $\bar{K}{\pi }^{+}$, ${\bar{K}}^{\ast }{\pi }^{+}$, $\bar{K}{\rho }^{+}$ decays