Measurements are presented of charged particle distributions in proton–proton collisions at a centre-of-mass energy of 13 TeV, using a data sample of nearly 9 million events recorded by the ATLAS detector at the LHC. The charged-particle multiplicity, its dependence on transverse momentum and pseudorapidity and the dependence of the mean transverse momentum on the charged-particle multiplicity are presented. The measurements are performed with charged particles with transverse momentum greater than 500 MeV and absolute pseudorapidity less than 2.5, in events with at least one charged particle satisfying these kinematic requirements. The results are corrected for detector effects, presented as particle-level distributions and are compared to various Monte Carlo event generator models.
