At threshold mu = m_Q, full-theory and EFT amplitudes equated to determine Wilson coefficients; perturbative matching at LO, NLO, NNLO; loop-graphs in both theories.
At threshold mu = m_Q, full-theory and EFT amplitudes equated to determine Wilson coefficients; perturbative matching at LO, NLO, NNLO; loop-graphs in both theories.