prikaz prve stranice dokumenta Measurement of inclusive and leading subjet fragmentation in pp and Pb–Pb collisions at √𝑠NN = 5.02 TeV
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Scientific paper - Original scientific paper
Measurement of inclusive and leading subjet fragmentation in pp and Pb–Pb collisions at √𝑠NN = 5.02 TeV
Journal of High Energy Physics, 2023 (2023), 05; 245. https://doi.org/10.1007/JHEP05(2023)245
(ALICE Collaboration) Acharya, Sheryasi; ...; Erhardt, Filip; ...; Gotovac, Sven; ...; Jerčić, Marko; ...; Karatović, David; ...; Lončar, Petra; ...; Mudnić, Eugen; ...; Planinić, Mirko; ...; Poljak, Nikola; ...; Vicković, Linda; ...; Zurlo, Nicola More authors...

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Acharya, S., Erhardt, F., Gotovac, S., Jerčić, M., Karatović, D., Lončar, P. ... Zurlo, N. (2023). Measurement of inclusive and leading subjet fragmentation in pp and Pb–Pb collisions at √𝑠NN = 5.02 TeV. Journal of High Energy Physics, 2023. (05). doi: 10.1007/JHEP05(2023)245

Acharya, Sheryasi, et al. "Measurement of inclusive and leading subjet fragmentation in pp and Pb–Pb collisions at √𝑠NN = 5.02 TeV." Journal of High Energy Physics, vol. 2023, no. 05, 2023. https://doi.org/10.1007/JHEP05(2023)245

Acharya, Sheryasi, Filip Erhardt, Sven Gotovac, Marko Jerčić, David Karatović, Petra Lončar, Eugen Mudnić, et al. "Measurement of inclusive and leading subjet fragmentation in pp and Pb–Pb collisions at √𝑠NN = 5.02 TeV." Journal of High Energy Physics 2023, no. 05 (2023). https://doi.org/10.1007/JHEP05(2023)245

Acharya, S., et al. (2023) 'Measurement of inclusive and leading subjet fragmentation in pp and Pb–Pb collisions at √𝑠NN = 5.02 TeV', Journal of High Energy Physics, 2023(05). doi: 10.1007/JHEP05(2023)245

Acharya S, Erhardt F, Gotovac S, Jerčić M, Karatović D, Lončar P, and sur.. Measurement of inclusive and leading subjet fragmentation in pp and Pb–Pb collisions at √𝑠NN = 5.02 TeV. Journal of High Energy Physics [Internet]. 2023 May 31 [cited 2024 December 07];2023(05). doi: 10.1007/JHEP05(2023)245

S. Acharya, et al., "Measurement of inclusive and leading subjet fragmentation in pp and Pb–Pb collisions at √𝑠NN = 5.02 TeV", Journal of High Energy Physics, vol. 2023, no. 05, May 2023. [Online]. Available at: https://urn.nsk.hr/urn:nbn:hr:217:500118. [Accessed: 07 December 2024]

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Metadata
Title (english)Measurement of inclusive and leading subjet fragmentation in pp and Pb–Pb collisions at √𝑠NN = 5.02 TeV
AuthorSheryasi Acharya
Author
...
AuthorFilip Erhardt
Author
...
AuthorSven Gotovac
Author
...
AuthorMarko Jerčić
Author
...
AuthorDavid Karatović
Author
...
AuthorPetra Lončar
Author
...
AuthorEugen Mudnić
Author
...
AuthorMirko Planinić
Author
...
AuthorNikola Poljak
Author
...
AuthorLinda Vicković
Author
...
AuthorNicola Zurlo
CollaborationALICE Collaboration
Author's institutionUniversity of Zagreb
Faculty of Science
(Department of Physics)
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Physics
Abstract (english)
This article presents new measurements of the fragmentation properties of jets in both proton–proton (pp) and heavy-ion collisions with the ALICE experiment at the Large Hadron Collider (LHC). We report distributions of the fraction zr of transverse momentum carried by subjets of radius r within jets of radius R. Charged-particle jets are reconstructed at midrapidity using the anti-kT algorithm with jet radius R = 0.4, and subjets are reconstructed by reclustering the jet constituents using the anti-kT algorithm with radii r = 0.1 and r = 0.2. In proton–proton collisions, we measure both the inclusive and leading subjet distributions. We compare these measurements to perturbative calculations at next-to-leading logarithmic accuracy, which suggest a large impact of threshold resummation and hadronization effects on the zr distribution. In heavy-ion collisions, we measure the leading subjet distributions, which allow access to a region of harder jet frag- mentation than has been probed by previous measurements of jet quenching via hadron fragmentation distributions. The zr distributions enable extraction of the parton-to-subjet fragmentation function and allow for tests of the universality of jet fragmentation functions in the quark–gluon plasma (QGP). We find no significant modification of zr distributions in Pb–Pb compared to pp collisions. However, the distributions are also consistent with a hardening trend for zr < 0.95, as predicted by several jet quenching models. As zr → 1 our results indicate that any such hardening effects cease, exposing qualitatively new possibilities to disentangle competing jet quenching mechanisms. By comparing our results to theoretical calculations based on an independent extraction of the parton-to-jet fragmentation function, we find consistency with the universality of jet fragmentation and no indication of factorization breaking in the QGP.
Keywords (english)
Languageenglish
Publication typeScientific paper - Original scientific paper
Publication statusPublished
Peer reviewPeer review - international
Publication versionPublished version
Journal titleJournal of High Energy Physics
Numberingvol. 2023, no. 05, 245
e-ISSN1029-8479
DOIhttps://doi.org/10.1007/JHEP05(2023)245
URN:NBNurn:nbn:hr:217:500118
Publication2023-05-31
Document URLhttps://link.springer.com/10.1007/JHEP05(2023)245
Type of resourceText
Access conditionsOpen access
Terms of useLicence Attribution 4.0 International (CC BY 4.0) icon
Public noteOpen Access, Copyright CERN, for the benefit of the ALICE Collaboration. Article funded by SCOAP3. Received: May 5, 2022. Revised: August 25, 2022. Accepted: September 8, 2022. Published: May 31, 2023. .
Created on2024-07-16 20:59:31