Measurement of Suppression of Large-Radius Jets and Its Dependence on Substructure in Pb + Pb Collisions at sNN=5.02 TeV with the ATLAS Detector
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F23%3A10476588" target="_blank" >RIV/00216208:11320/23:10476588 - isvavai.cz</a>
Alternative codes found
RIV/68378271:_____/23:00581796 RIV/61989592:15310/23:73623100
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=2xa5J4Br3t" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=2xa5J4Br3t</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevLett.131.172301" target="_blank" >10.1103/PhysRevLett.131.172301</a>
Alternative languages
Result language
angličtina
Original language name
Measurement of Suppression of Large-Radius Jets and Its Dependence on Substructure in Pb + Pb Collisions at sNN=5.02 TeV with the ATLAS Detector
Original language description
This letter presents a measurement of the nuclear modification factor of large-radius jets inffiffiffiffiffiffiffiffisNNp1/45.02 TeV Pb þ Pb collisions by the ATLAS experiment. The measurement is performed using 1.72 nb-1and 257 pb-1 of Pb þ Pb and pp data, respectively. The large-radius jets are reconstructed with the anti-ktalgorithm using a radius parameter of R 1/4 1.0, by reclustering anti-kt R 1/4 0.2 jets, and are measured overthe transverse momentum (pT) kinematic range of 158 < pT < 1000 GeV and absolute pseudorapidityjyj < 2.0. The large-radius jet constituents are further reclustered using the kt algorithm in order to obtainthe splitting parameters,ffiffiffiffiffiffiffid12pand ΔR12, which characterize the transverse momentum scale and angularseparation for the hardest splitting in the jet, respectively. The nuclear modification factor, RAA, obtained bycomparing the Pb þ Pb jet yields to those in pp collisions, is measured as a function of jet transversemomentum (pT ) andffiffiffiffiffiffiffid12por ΔR12. A significant difference in the quenching of large-radius jets havingsingle subjet and those with more complex substructure is observed. Systematic comparison of jetsuppression in terms of RAA for different jet definitions is also provided. Presented results support thehypothesis that jets with hard internal splittings lose more energy through quenching and provide a newperspective for understanding the role of jet structure in jet suppression.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10300 - Physical sciences
Result continuities
Project
<a href="/en/project/GA22-11846S" target="_blank" >GA22-11846S: Study of jets and quarkonia in heavy-ion collisions</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physical Review Letters
ISSN
0031-9007
e-ISSN
1079-7114
Volume of the periodical
131
Issue of the periodical within the volume
17
Country of publishing house
US - UNITED STATES
Number of pages
22
Pages from-to
172301
UT code for WoS article
001257149500001
EID of the result in the Scopus database
2-s2.0-85176743787