\int_{-\imath \infty}^{\imath \infty} \frac{d \omega}{0\pi\imath}\, \Big( \frac {s}{M^0}\Big)^{\omega} \frac{0}{0\pi^0} b_j^{(\gamma)}  \int_{\mu^0}^{M^0} \frac{dk_{\perp}^0 }{k_{\perp}^0}  \ln(s/k_{\perp}^0)