Feasibility of the experimental study of $$D_{s}^{*}\rightarrow {\phi }{\pi }$$ D s ∗ → ϕ π decay
The European Physical Journal C(2022)
摘要
The current knowledge on the
$$D_{s}^{*}$$
meson are very limited. Besides the dominant electromagnetic decays, the
$$D_{s}^{*}$$
weak decays are legal and offer the valuable opportunities to explore the wanted
$$D_{s}^{*}$$
meson. In this paper, the
$$D_{s}^{*}\rightarrow {\phi }{\pi }$$
decay was studied with the factorization approach. It is found that the branching ratio
$${\mathcal {B}}(D_{s}^{*}\rightarrow {\phi }{\pi })$$
$${\sim }$$
$${\mathcal {O}}(10^{-7})$$
, which corresponds to several thousands of events at the
$$e^{+}e^{-}$$
collider experiments including STCF, SuperKEKB, CEPC and FCC-ee, and several millions of events at the hadron collider experiments, such as LHCb@HL-LHC. It is feasible to experimentally study the
$$D_{s}^{*}\rightarrow {\phi }{\pi }$$
weak decay in the future, even considering the identification efficiency.
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