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arXiv · hep-ph/9706294

The Color-Octet intrinsic charm in $η^\prime$ and $B\to η^\prime X$ decays

Feng Yuan·Kuang-Ta Chao
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Abstract

Color-octet mechanism for the decay B\to η^\prime X is proposed to explain the large branching ratio of Br(B\to η^\prime X)\sim 1\times 10^{-3} recently announced by CLEO. We argue that the inclusive η^\prime production in B decays may dominantly come from the Cabbibo favored b\to (\bar c c)_8s process where \bar c c pair is in a color-octet configuration, and followed by the nonperturbative transition (\bar c c)_8\to η^\prime X. The color-octet intrinsic charm component in the higher Fock states of η^\prime is crucial and is induced by the strong coupling of η^\prime to gluons via QCD axial anomaly.

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Feng Yuan, Kuang-Ta Chao. 1997-06-09. The Color-Octet intrinsic charm in $η^\prime$ and $B\to η^\prime X$ decays. https://doi.org/10.1103/physrevd.56.r2495

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