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The values of the masses of the particles involved in the decay of$T^+_{cc}\to D^{*+}D^0\to\pi^+D^0D^0$ suggest that due to the final stateinteractions in the transition vertex $T^+_{cc}\to D^{*+}D^0 $ there may betriangle logarithmic singularities. We discuss their possible role and showthat the tree approximation for calculating the decay widths$T^+_{cc}\to(D^{*+}D^0+D^{*0}D^+)\to\pi^+D^0D^0$, $\pi^0D^0 D^+$, $\gammaD^0D^+$ is quite sufficient at the current level of measurement accuracy.

Triangle singularities in the $T^+_{cc}\to D^{*+}D^0\to\pi^+D^0D^0$ decay width