QCD Anomaly Coupling for the $η'-g-g$ Vertex in Inclusive Decay $B\toη' X_s$

Details QCD Anomaly Coupling for the $η'-g-g$ Vertex in Inclusive Decay $B\toη' X_s$ QCD Anomaly Coupling for the $η'-g-g$ Vertex in Inclusive Decay $B\toη' X_s$

1999-02-09

arxiv.org/abs/hep-ph/9902275v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages, latex, one figure included

Scientific paper

The QCD anomaly coupling of $\eta'-g-g$ is treated as the axial vector current triangle anomaly. By assuming the divergent axial vector coupling of the $\eta'$ meson with the quark line in the triangle diagram, we calculate the QCD anomaly of $\eta'-g-g$ as well as the QED anomaly of $\eta'-\gamma-\gamma$ with only one common parameter $\kappa_{\eta'}$. We obtain consistent results of the branching ratios for $B\to\eta' X_s, J/\psi\to\eta'\gamma$ and $\eta'\to \gamma\gamma$ when comparing with experimental data.

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