Observation of inclusive $D^{\ast \pm }$ production in the decay of ${\rm Y}(1S)$

The BABAR Collaboration, B. Aubert

We present a study of the inclusive $D^{\ast \pm }$ production in the decay of ${\rm Y}(1S)$ using $(98.6\pm 0.9)\times 10^6$ ${\rm Y}(2S)$ mesons collected with the BaBar detector at the ${\rm Y}(2S)$…