Flavour Singlet ${\cal O}(\alpha_s^2 m_b^2/m_t^2)$ Corrections to the Partial Decay Rate $\Gamma(Z\rightarrow b\bar{b})$
We analytically compute the flavour singlet ${\cal O}(\alpha_s^2 m_b^2/m_t^2)$ radiative corrections to the partial decay rate $\Gamma(Z\rightarrow b\bar{b})$. These corrections...