One loop renormalisation of Lattice NRQCD currents for semileptonic $B\to D^{(\ast )}$ decays to order $\frac{\vec{p}}{M}$

P Boyle, C Davies

We present the results of a perturbative calculation to match the axial and vector currents for semileptonic $B\to D^{(\ast )}$ decays in lattice NRQCD to the continuum \MSb scheme.…