Lepton Flavour Universality in Semileptonic ${\bar{B}}_{(s)}\to D_{(s)}^{(\ast )}$ Transitions

Yu-Chen Hu, Cong-Cong Ye, Craig D. Roberts +1

Using continuum Schwinger function methods, we deliver parameter-free pointwise predictions for the complete set of twelve Standard Model (SM) ${\bar{B}}_{(s)}\to D_{(s)}^{(\ast )}$,…