Measurement of the mass and production rate of ${\Xi }_b^{-}$ baryons

LHCb collaboration, R. Aaij, C. Abellán Beteta +843

The first measurement of the production rate of ${\Xi }_b^{-}$ baryons in $pp$ collisions relative to that of ${\Lambda }_b^0$ baryons is reported, using data samples collected by the LHCb experim…