Measurements of the suppression and correlations of dijets in Pb plus Pb collisions at √sNN=5.02 TeV
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F23%3A73621581" target="_blank" >RIV/61989592:15310/23:73621581 - isvavai.cz</a>
Result on the web
<a href="https://journals.aps.org/prc/pdf/10.1103/PhysRevC.107.054908" target="_blank" >https://journals.aps.org/prc/pdf/10.1103/PhysRevC.107.054908</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevC.107.054908" target="_blank" >10.1103/PhysRevC.107.054908</a>
Alternative languages
Result language
angličtina
Original language name
Measurements of the suppression and correlations of dijets in Pb plus Pb collisions at √sNN=5.02 TeV
Original language description
Studies of the correlations of the two highest transverse momentum (leading) jets in individual Pb+Pb colli-sion events can provide information about the mechanism of jet quenching by the hot and dense matter created in such collisions. In Pb+Pb and pp collisions at root NN = 5.02 TeV, measurements of the leading dijet transverse momentum (pT) correlations are presented. Additionally, measurements in Pb+Pb collisions of the dijet pair nuclear modification factors projected along leading and subleading jet pT are made. The measurements are per-formed using the ATLAS detector at the LHC with 260 pb(-1) of pp data collected in 2017 and 2.2 nb(-1) of Pb+Pb data collected in 2015 and 2018. An unfolding procedure is applied to the two-dimensional leading and sublead-ing jet pT distributions to account for experimental effects in the measurement of both jets. Results are provided for dijets with leading jet pT greater than 100 GeV. Measurements of the dijet-yield-normalized xJ distributions in Pb+Pb collisions show an increased fraction of imbalanced jets compared to pp collisions; these measurements are in agreement with previous measurements of the same quantity at 2.76 TeV in the overlapping kinematic range. Measurements of the absolutely normalized dijet rate in Pb+Pb and pp collisions are also presented, and show that balanced dijets are significantly more suppressed than imbalanced dijets in Pb+Pb collisions. It is observed in the measurements of the pair nuclear modification factors that the subleading jets are significantly suppressed relative to leading jets with pT between 100 and 316 GeV for all centralities in Pb+Pb collisions.
Czech name
—
Czech description
—
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
10303 - Particles and field physics
Result continuities
Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
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 C
ISSN
2469-9985
e-ISSN
2469-9993
Volume of the periodical
107
Issue of the periodical within the volume
5
Country of publishing house
US - UNITED STATES
Number of pages
31
Pages from-to
"054908-1"-"054908-31"
UT code for WoS article
001021461500001
EID of the result in the Scopus database
2-s2.0-85164700382