b quark production at a cener-of-mass energy of 13 TeV

Measurements of the cross-section for producing $b$ quarks in the reaction $pp\to b\overline{b} X$ and $B$ hadron production fractions as a function of $\eta$ and transverse momentum are reported in 13 TeV collisions at the LHC with data taken by the LHCb detector. The measurements are done using semileptonic decays of $b$-flavored hadrons decaying into a ground-state charmed hadron in association with a muon.