Studies of quarkonia and doubly-heavy hadrons at LHCb

The measurements of quarkonia and doubly-heavy hadrons in pp collisions provide crucial inputs to study both perturbative and non-perturbative quantum chromodynamics. LHCb has a broad physics program of studies of quarkonia and doubly-heavy hadrons. In this proceeding, six recent measurements from the LHCb collaboration are reported: the ψ(2S) production cross-sections measurement, the updated measurement of ηc(1S) production cross-section, the observation of a new charmonium state X(3842), the observation of an excited B c state, the precision measurement of B c mass, and end this report with the first search of Ξbc .