TTP97-02 QCD based Calculation of the semi-inclusive Decay \eta_Q \to \gamma + light Hadrons
TTP97-02 QCD based Calculation of the semi-inclusive Decay \eta_Q \to \gamma + light Hadrons
TTP97-02 QCD based Calculation of the semi-inclusive Decay \eta_Q \to \gamma + light Hadrons
A QCD based calculation of the photon spectrum in semi-inclusive
\eta_Q decays is performed. The method applied is an effective
theory based on a 1/m_Q expansion of QCD.