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 the ATLAS detector
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F19%3A73596876" target="_blank" >RIV/61989592:15310/19:73596876 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21220/19:00337764 RIV/68407700:21340/19:00337764 RIV/68407700:21670/19:00337764 RIV/00216208:11320/19:10407681
Result on the web
<a href="https://journals.aps.org/prc/pdf/10.1103/PhysRevC.100.064901" target="_blank" >https://journals.aps.org/prc/pdf/10.1103/PhysRevC.100.064901</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevC.100.064901" target="_blank" >10.1103/PhysRevC.100.064901</a>
Alternative languages
Result language
angličtina
Original language name
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 the ATLAS detector
Original language description
Studies of the fragmentation of jets into charged particles in heavy-ion collisions can provide information about the mechanism of jet quenching by the hot and dense QCD matter created in such collisions, the quark-gluon plasma. This paper presents a measurement of the angular distribution of charged particles around the jet axis in root s(NN) = 5.02 TeV Pb + Pb and pp collisions, using the ATLAS detector at the LHC. The Pb + Pb and pp data sets have integrated luminosities of 0.49 nb(-1) and 25 pb(-1), respectively. The measurement is performed for jets reconstructed with the anti-k(t) algorithm with radius parameter R = 0.4 and is extended to an angular distance of r = 0.8 from the jet axis. Results are presented as a function of Pb + Pb collision centrality and distance from the jet axis for charged particles with transverse momenta in the 1- to 63-GeV range, matched to jets with transverse momenta in the 126- to 316-GeV range and an absolute value of jet rapidity of less than 1.7. Modifications to the measured distributions are quantified by taking a ratio to the measurements in pp collisions. Yields of charged particles with transverse momenta below 4 GeV are observed to be increasingly enhanced as a function of angular distance from the jet axis, reaching a maximum at r = 0.6. Charged particles with transverse momenta above 4 GeV have an enhanced yield in Pb + Pb collisions in the jet core for angular distances up to r = 0.05 from the jet axis, with a suppression at larger distances.
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
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OECD FORD branch
10303 - Particles and field physics
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2019
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 C
ISSN
2469-9985
e-ISSN
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Volume of the periodical
100
Issue of the periodical within the volume
6
Country of publishing house
US - UNITED STATES
Number of pages
29
Pages from-to
"064901-1"-"064901-29"
UT code for WoS article
000499977600003
EID of the result in the Scopus database
2-s2.0-85077627061