Measurement of angular and momentum distributions of charged particles within and around jets in Pb plus Pb and pp collisions at root s(NN)=5.02 TeV with ATLAS at the LHC

Studies of the fragmentation of jets into charged particles in heavy-ion collisions can help in understanding the mechanism of jet quenching by the hot and dense QCD matter created in such collisions, the quark-gluon plasma. These proceedings present a measurement of the angular distribution of char...

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Detalhes bibliográficos
Autor principal: Onofre, A. (author)
Outros Autores: Castro, Nuno Filipe (author), ATLAS Collaboration (author)
Formato: article
Idioma:eng
Publicado em: 2019
Assuntos:
jets
fragmentation functions
jet shapes
Ciências Naturais::Ciências Físicas
Science & Technology
Texto completo:http://hdl.handle.net/1822/63600
País:Portugal
Oai:oai:repositorium.sdum.uminho.pt:1822/63600
Descrição
Resumo:Studies of the fragmentation of jets into charged particles in heavy-ion collisions can help in understanding the mechanism of jet quenching by the hot and dense QCD matter created in such collisions, the quark-gluon plasma. These proceedings present a measurement of the angular distribution of charged particles around the jet axis in Pb+Pb and pp collisions, done using the ATLAS detector at the LHC. The measurement is performed inside jets reconstructed with the anti-kt algorithm with radius parameter , and is extended to regions outside the jet cone. Results are presented as a function of Pb+Pb collision centrality, and both jet and charged-particle transverse momenta.

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