TL;DR
This paper discusses the nature of the D_{s0}^+(2317) meson as an iso-triplet tetra-quark and suggests better experimental methods to observe its neutral and doubly charged partners through B meson decays.
Contribution
It proposes that D_{s0}^+(2317) is likely an iso-triplet tetra-quark and highlights the advantages of using B meson decays to detect its partners, providing estimated branching ratios.
Findings
D_{s0}^+(2317) favors an iso-triplet tetra-quark assignment.
Neutral and doubly charged partners are hard to observe in e^+e^- annihilation.
B meson decays could produce these partners with branching ratios around 10^{-3}.
Abstract
It is pointed out that assigning D_{s0}^+(2317) to an iso-triplet tetra-quark meson is favored by experiments. It also is discussed why its neutral and doubly charged partners have never been observed in inclusive e^+e^- annihilation. To search for them, hadronic weak decays of B mesons would be better, and their production rates, Br(B_u^+ -> D^-D_{s0}^{++}(2317)) and Br(B_d^0 ->antiD^0D_{s0}^{0}(2317)), would be around 10^{-3}.
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