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hep-ph1999
A more careful estimate of the charm content of eta'
M. R. Ahmady, E. Kou
We estimate the quantity |f_eta'^(c)| which is associated with the charm content of eta' meson from the experimentally known ratio R=B(psi ->eta' gamma )/B(psi ->eta_c gamma). It i…
hep-ph1997
Non-spectator contributions to B->X_s eta'
M. R. Ahmady, E. Kou, A. Sugamoto
We propose a nonspectator mechanism in which eta' is produced by two gluon fusion as the underlying process to explain the inclusive B-> X_s eta' as well as the exclusive B -> K^(*…