QCD analysis of inclusive B decay into charmonium

Details QCD analysis of inclusive B decay into charmonium QCD analysis of inclusive B decay into charmonium

1998-08-19

arxiv.org/abs/hep-ph/9808360v1

Phys.Rev. D59 (1999) 054003

Physics

High Energy Physics

High Energy Physics - Phenomenology

40 pages, RevTeX, 4 figures

Scientific paper

10.1103/PhysRevD.59.054003

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.

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