Study of the production of ${\Lambda }_b^0$ and ${\overline{B}}^0$ hadrons in $pp$ collisions and first measurement of the ${\Lambda }_b^0\to J/\psi p{K}^{-}$ branching fraction

LHCb collaboration, R. Aaij, B. Adeva +722

The product of the ${\Lambda }_b^0$ (${\overline{B}}^0$) differential production cross-section and the branching fraction of the decay ${\Lambda }_b^0\to J/\psi p{K}^{-}$ ($\overline{B}^0\rightarrow J…