QCD Anomaly Coupling for the ${\eta }^{\prime }-g-g$ Vertex in Inclusive Decay $B\to {\eta }^{\prime }{X}_s$

Taizo Muta, Mao-Zhi Yang

The QCD anomaly coupling of ${\eta }^{\prime }-g-g$ is treated as the axial vector current triangle anomaly. By assuming the divergent axial vector coupling of the ${\eta }^{\prime }$ meson with the quark line…