Production of Neutral and Doubly Charged Partners of DFormula(2317)

Production of neutral and doubly charged partners, $\hat F_I^0$ and $\hatF_I^{++}$, of $ D_{s0}^+(2317)$ as a charm-strange four-quark meson is studiedin relation to observations of $D_{s0}^+(2317)$. It is discussed thatobservation of $\hat F_I^{++}$ in inclusive $e^+e^-\to c\bar c$ is difficultbut it might be observed in $B_u^+\to D_s^+\pi^+D^-$. Observations of $\hatF_I^0$ and $\hat F_0^+$ might be possible in hadronic B decays.Comment: 4 pages, 5 figures, RevTex, clarifications of tex