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Title: Measurement of angular and momentum distributions of charged particles within and around jets in Pb+Pb and pp collisions at s NN = 5.02 TeV with ATLAS at the LHC

Abstract

Studies of the fragmentation of jets into charged particles in heavy-ion collisions can help in understanding the mechanism of jet quenching by the hot and dense QCD matter created in such collisions, the quark-gluon plasma. These proceedings present a measurement of the angular distribution of charged particles around the jet axis in √ sNN = 5.02 TeV Pb+Pb and pp collisions, done using the ATLAS detector at the LHC. The measurement is performed inside jets reconstructed with the anti-kt algorithm with radius parameter R = 0.4, and is extended to regions outside the jet cone. Here the results are presented as a function of Pb+Pb collision centrality, and both jet and charged-particle transverse momenta.

Authors:
ORCiD logo [1]
  1. Univ. of Illinois at Urbana-Champaign, Urbana, IL (United States)
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1503099
Grant/Contract Number:  
AC02-76SF00515
Resource Type:
Journal Article: 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; jets; fragmentation functions; jet shapes

Citation Formats

Puri, Akshat. Measurement of angular and momentum distributions of charged particles within and around jets in Pb+Pb and pp collisions at sNN=5.02TeV with ATLAS at the LHC. United States: N. p., 2019. Web. doi:10.1016/j.nuclphysa.2018.09.021.
Puri, Akshat. Measurement of angular and momentum distributions of charged particles within and around jets in Pb+Pb and pp collisions at sNN=5.02TeV with ATLAS at the LHC. United States. doi:10.1016/j.nuclphysa.2018.09.021.
Puri, Akshat. Tue . "Measurement of angular and momentum distributions of charged particles within and around jets in Pb+Pb and pp collisions at sNN=5.02TeV with ATLAS at the LHC". United States. doi:10.1016/j.nuclphysa.2018.09.021. https://www.osti.gov/servlets/purl/1503099.
@article{osti_1503099,
title = {Measurement of angular and momentum distributions of charged particles within and around jets in Pb+Pb and pp collisions at sNN=5.02TeV with ATLAS at the LHC},
author = {Puri, Akshat},
abstractNote = {Studies of the fragmentation of jets into charged particles in heavy-ion collisions can help in understanding the mechanism of jet quenching by the hot and dense QCD matter created in such collisions, the quark-gluon plasma. These proceedings present a measurement of the angular distribution of charged particles around the jet axis in √sNN = 5.02 TeV Pb+Pb and pp collisions, done using the ATLAS detector at the LHC. The measurement is performed inside jets reconstructed with the anti-kt algorithm with radius parameter R = 0.4, and is extended to regions outside the jet cone. Here the results are presented as a function of Pb+Pb collision centrality, and both jet and charged-particle transverse momenta.},
doi = {10.1016/j.nuclphysa.2018.09.021},
journal = {Nuclear Physics. A},
issn = {0375-9474},
number = C,
volume = 982,
place = {United States},
year = {2019},
month = {1}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Figures / Tables:

Figure 1 Figure 1: Left: Closed (open) symbols show D(pT, r) distributions in 0–10% Pb+Pb (pp) collisions as a function of angular distance r for 126 < p$^{jet}_T$ < 158 GeV for four pT selections. Right: Ratios of D(pT, r) distributions in 0–10% Pb+Pb collisions to pp collisions as a function ofmore » angular distance r for 126 < p$^{jet}_{T}$ < 158 GeV for six pT selections. The vertical bars on the data points indicate statistical uncertainties while the shaded boxes indicate systematic uncertainties. There are no uncertainties on the r values. Figures are from Ref. [10]« less

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Figures / Tables found in this record:

    Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.