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Comparison of fragmentation functions for jets dominated by light quarks and gluons from pp and Pb+Pb collisions in ATLAS

Physical review letters, 2019, Vol.123 (4) [Peer Reviewed Journal]

info:eu-repo/semantics/openAccess ;ISSN: 0031-9007 ;ISSN: 1079-7114 ;EISSN: 1079-7114 ;DOI: 10.1103/PhysRevLett.123.042001

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Title:
Comparison of fragmentation functions for jets dominated by light quarks and gluons from pp and Pb+Pb collisions in ATLAS
Author: Aaboud, Morad ; Aad, Georges ; Abbott, Brad ; Abdinov, Ovsat Bahram oglu ; Abeloos, Baptiste ; Abhayasinghe, Deshan Kavishka ; Abidi, Syed Haider ; AbouZeid, Hass ; Abraham, Nadine L ; Abramowicz, Halina ; Buanes, Trygve ; Djuvsland, Julia Isabell ; Eigen, Gerald ; Fomin, Nikolai ; Lipniacka, Anna ; Martin dit Latour, Bertrand ; Mæland, Steffen ; Stugu, Bjarne ; Yang, Zongchang ; Zalieckas, Justas ; Bugge, Magnar Kopangen ; Cameron, David Gordon ; Catmore, James Richard ; Feigl, Simon ; Franconi, Laura ; Garonne, Vincent ; Gramstad, Eirik ; Hellesund, Simen ; Morisbak, Vanja ; Oppen, Henrik ; Ould-Saada, Farid ; Pedersen, Maiken ; Read, Alexander Lincoln ; Røhne, Ole Myren ; Sandaker, Heidi ; Serfon, Cédric ; Stapnes, Steinar ; Vadla, Knut Oddvar Høie ; Abreu, Henso ; Abulaiti, Yiming ; Acharya, Bobby S ; Adachi, Shunsuke ; Adamczyk, Leszek ; Adelman, Jareed ; Adersberger, Michael ; Adigüzel, Aytül ; Adye, Tim ; Affolder, Anthony Allen ; Afik, Yoav ; Agheorghiesei, Catalin ; ATLAS, Collaboration
Subjects: Charge dependence ; Charged particles ; Colliding beam accelerators ; Fragmentation functions ; Fysik ; Isolated photons ; Jet fragmentation ; Large Hadron Collider ; Lead compounds ; Monte Carlo generator ; Natural Sciences ; Naturvetenskap ; Particle fragmentation ; Photons ; Physical Sciences ; Subatomic Physics ; Subatomär fysik ; Tellurium compounds ; Transverse momenta
Is Part Of: Physical review letters, 2019, Vol.123 (4)
Description: Charged-particle fragmentation functions for jets azimuthally balanced by a high-transversemomentum, prompt, isolated photon are measured in 25 pb−1 of pp and 0.49 nb−1 of Pb þ Pb collision data at 5.02 TeV per nucleon pair recorded with the ATLAS detector at the Large Hadron Collider. The measurements are compared to predictions of Monte Carlo generators and to measurements of inclusively selected jets. In pp collisions, a different jet fragmentation function in photon-tagged events from that in inclusive jet events arises from the difference in fragmentation between light quarks and gluons. The ratios of the fragmentation functions in Pb þ Pb events to that in pp events are used to explore the parton color-charge dependence of jet quenching in the hot medium. In relatively peripheral collisions, fragmentation functions exhibit a similar modification pattern for photon-tagged and inclusive jets. However, photon-tagged jets are observed to have larger modifications than inclusive jets in central Pb þ Pb events.
Publisher: American Physical Society
Language: Norwegian;English
Identifier: ISSN: 0031-9007
ISSN: 1079-7114
EISSN: 1079-7114
DOI: 10.1103/PhysRevLett.123.042001
Source: SWEPUB Freely available online

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Comparison of fragmentation functions for jets dominated by light quarks and gluons from pp and Pb+Pb collisions in ATLAS

info:eu-repo/semantics/openAccess ;ISSN: 0031-9007 ;ISSN: 1079-7114 ;EISSN: 1079-7114 ;DOI: 10.1103/PhysRevLett.123.042001

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