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

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.

9 pages, RevTex, 1 PS figure

References in corpus (1)

• QCD corrections to B -> J/psi + anything

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