Properties of jet fragmentation using charged particles measured with the ATLAS detector in pp collisions at s =13 TeV
This paper presents a measurement of quantities related to the formation of jets from high-energy quarks and gluons (fragmentation). Jets with transverse momentum 100 GeV <2.5 TeV and pseudorapidity |η|<2.1 from an integrated luminosity of 33 fb-1 of s=13 TeV proton-proton collisions are reconstructed with the ATLAS detector at the Large Hadron Collider. Charged-particle tracks with pT>500 MeV and |η|<2.5 are used to probe the detailed structure of the jet. The fragmentation properties of the more forward and the more central of the two leading jets from each event are studied.