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arXiv · hep-ph/9808360

QCD analysis of inclusive B decay into charmonium

M. Beneke·F. Maltoni·I. Z. Rothstein
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Abstract

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 $J/ψ$, $ψ'$ and $χ_c$ 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.

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M. Beneke, F. Maltoni, I. Z. Rothstein. 1998-08-19. QCD analysis of inclusive B decay into charmonium. https://doi.org/10.1103/physrevd.59.054003

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