@article{oai:tsukuba.repo.nii.ac.jp:00053904,
 author = {原, 和彦 and HARA, Kazuhiko and 大川, 英希 and OKAWA, Hideki and 佐藤, 構二 and SATO, Koji and 受川, 史彦 and UKEGAWA, Fumihiko and ATLA Collaboration},
 issue = {5},
 journal = {Physical review D},
 month = {Sep},
 note = {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 <pT<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. The data are unfolded to correct for detector resolution and acceptance effects. Comparisons with parton shower Monte Carlo generators indicate that existing models provide a reasonable description of the data across a wide range of phase space, but there are also significant differences. Furthermore, the data are interpreted in the context of quark- and gluon-initiated jets by exploiting the rapidity dependence of the jet flavor fraction. A first measurement of the charged-particle multiplicity using model-independent jet labels (topic modeling) provides a promising alternative to traditional quark and gluon extractions using input from simulation. The simulations provide a reasonable description of the quark-like data across the jet pT range presented in -this measurement, but the gluon-like data have systematically fewer charged particles than the simulation.},
 title = {Properties of jet fragmentation using charged particles measured with the ATLAS detector in pp collisions at √s=13??TeV},
 volume = {100},
 year = {2019},
 yomi = {ハラ, カズヒコ and オオカワ, ヒデキ and サトウ, コウジ and ウケガワ, フミヒコ}
}