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Title: Jet suppression and jet substructure in Pb+Pb and Xe+Xe collisions with the ATLAS detector

Abstract

This short summary presents latest measurements of the nuclear modification factor, RAA, for R = 0.4 jets in Pb+Pb collisions at √sNN = 5.02 TeV with the ATLAS detector at the LHC. The analysis is performed over a large range of transverse momentum, up to pT = 1 TeV, and differentially in jet pT, rapidity, and collision centrality. The jet RAA is measured also differentially in the jet mass, m, which provides new information on the dependence of the energy loss on the substructure of jets. Latest results by ATLAS on the dijet momentum balance in Xe+Xe collisions at √sNN = 5.44 TeV are presented and compared to the same quantity measured in Pb+Pb collisions at √sNN = 5.02 TeV. Furthermore these recent measurements should help us understand mechanisms of parton energy loss and properties of hot and dense matter created in heavy-ion collisions.

Authors:
ORCiD logo [1]
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  1. Charles Univ., Prague (Czech Republic)
Publication Date:
Research Org.:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1503107
Grant/Contract Number:  
AC02-76SF00515
Resource Type:
Accepted Manuscript
Journal Name:
Nuclear Physics. A
Additional Journal Information:
Journal Volume: 982; Journal Issue: C; Journal ID: ISSN 0375-9474
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; heavy-ion collisions; jet quenching; inclusive jet suppression; dijet asymmetry

Citation Formats

Spousta, Martin. Jet suppression and jet substructure in Pb+Pb and Xe+Xe collisions with the ATLAS detector. United States: N. p., 2019. Web. doi:10.1016/j.nuclphysa.2018.08.031.
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Spousta, Martin. Jet suppression and jet substructure in Pb+Pb and Xe+Xe collisions with the ATLAS detector. United States. https://doi.org/10.1016/j.nuclphysa.2018.08.031
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Spousta, Martin. Tue . "Jet suppression and jet substructure in Pb+Pb and Xe+Xe collisions with the ATLAS detector". United States. https://doi.org/10.1016/j.nuclphysa.2018.08.031. https://www.osti.gov/servlets/purl/1503107.
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@article{osti_1503107,
title = {Jet suppression and jet substructure in Pb+Pb and Xe+Xe collisions with the ATLAS detector},
author = {Spousta, Martin},
abstractNote = {This short summary presents latest measurements of the nuclear modification factor, RAA, for R = 0.4 jets in Pb+Pb collisions at √sNN = 5.02 TeV with the ATLAS detector at the LHC. The analysis is performed over a large range of transverse momentum, up to pT = 1 TeV, and differentially in jet pT, rapidity, and collision centrality. The jet RAA is measured also differentially in the jet mass, m, which provides new information on the dependence of the energy loss on the substructure of jets. Latest results by ATLAS on the dijet momentum balance in Xe+Xe collisions at √sNN = 5.44 TeV are presented and compared to the same quantity measured in Pb+Pb collisions at √sNN = 5.02 TeV. Furthermore these recent measurements should help us understand mechanisms of parton energy loss and properties of hot and dense matter created in heavy-ion collisions.},
doi = {10.1016/j.nuclphysa.2018.08.031},
journal = {Nuclear Physics. A},
number = C,
volume = 982,
place = {United States},
year = {Tue Jan 22 00:00:00 EST 2019},
month = {Tue Jan 22 00:00:00 EST 2019}
}
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Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1016/j.nuclphysa.2018.08.031
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Figures / Tables:

Figure 1 Figure 1: The RAA values as a function of jet pT for jets with |y| < 2.1 in 0–10% and 30–40% centrality intervals compared to the same quantity measured in $\sqrt{sNN}$ = 2.76 TeV Pb+Pb collisions [6]. The error bars represent statistical uncertainties, the shaded boxes around the data pointsmore » quantify bin-wise correlated systematic uncertainties. For $\sqrt{sNN}$ = 2.76 TeV measurement, the open boxes represent uncorrelated systematic uncertainties. The coloured shaded boxes at RAA = 1 quantify the combined fractional 〈TAA〉 and pp luminosity uncertainty. The horizontal size of error boxes quantifies the width of the pT interval. Figure taken from [2].« less
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Works referenced in this record:

A theory of jet shapes and cross sections: from hadrons to nuclei
text, January 2008

Inclusive production of small radius jets in heavy-ion collisions
text, January 2017

Interpreting single jet measurements in Pb $$+$$ + Pb collisions at the LHC
journal, January 2016

Jet quenching from QCD evolution
journal, April 2016

Inclusive production of small radius jets in heavy-ion collisions
journal, June 2017

Linear Boltzmann transport for jet propagation in the quark-gluon plasma: Elastic processes and medium recoil
journal, May 2015

Interpreting single jet measurements in Pb $$+$$ + Pb collisions at the LHC
journal, January 2016

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