Decay constants of the $B_c$ mesons with vector and tensor currents

Eduard Costa i Reina, Nico Gubernari, Zachary Wüthrich

We calculate the decay constants of the lowest-lying $B_c$ mesons in the spin-parity channels $J^P=0^{-},0^{+},1^{-},1^{+}$, commonly referred to as the $B_c,\, B_{c0}^*,\, B_c^*,\…