Solution
= Solution
Direct integration between the two <renormalization scales> gives
$$
\boxed{\alpha_i^{-1}(\mu)=\alpha_i^{-1}(m_Z)+\frac{\beta_i}{2\pi}\log\frac{\mu}{m_Z}}.
$$
= Solution
Direct integration between the two <renormalization scales> gives
$$
\boxed{\alpha_i^{-1}(\mu)=\alpha_i^{-1}(m_Z)+\frac{\beta_i}{2\pi}\log\frac{\mu}{m_Z}}.
$$