%0 Journal Article
%T QCD analysis of inclusive B decay into charmonium
%A M. Beneke
%A F. Maltoni
%A I. Z. Rothstein
%J Physics
%D 1998
%I arXiv
%R 10.1103/PhysRevD.59.054003
%X We compute the decay rates and $H$-energy distributions of $B$ mesons into the final state $H+X$, where $H$ can be any one of the $S$-wave or $P$-wave charmonia, at next-to-leading order in the strong coupling. We find that a significant fraction of the observed $J/\psi$, $\psi'$ and $\chi_c$ must be produced through $c\bar{c}$ pairs in a colour octet state and should therefore be accompanied by more than one light hadron. At the same time we obtain stringent constraints on some of the long-distance parameters for colour octet production.
%U http://arxiv.org/abs/hep-ph/9808360v1