skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Charged-hadron suppression in Pb+Pb and Xe+Xe collisions measured with the ATLAS detector

Abstract

The ATLAS detector at the LHC recorded 0.49 nb –1 of Pb+Pb collisions and 25 pb –1 of pp collisions, both at the center-of-mass energy 5.02 TeV per nucleon pair. Recently, ATLAS also recorded 3μb –1 of Xe+Xe collisions at the center-of-mass energy 5.44 TeV, which provides a new opportunity to study the system-size dependence of the charged-hadron production in heavy-ion collisions. The large acceptance of the ATLAS detector allows to measure the spectra of charged hadrons in a wide range of pseudorapidity and transverse momentum. The nuclear modification factors R AA are constructed as a ratio of the spectra measured in Pb+Pb or Xe+Xe collisions to that measured in pp collisions. In conclusion, the R AA obtained in the two systems are presented for different centrality intervals and the results are discussed.

Authors:
ORCiD logo [1]
  1. Weizmann Institute of Science, Rehovot (Israel)
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1503102
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; xenon–xenon collisions; lead–lead collisions; charged-hadron production; nuclear modification factor

Citation Formats

Balek, Petr. Charged-hadron suppression in Pb+Pb and Xe+Xe collisions measured with the ATLAS detector. United States: N. p., 2019. Web. doi:10.1016/j.nuclphysa.2018.10.079.
Balek, Petr. Charged-hadron suppression in Pb+Pb and Xe+Xe collisions measured with the ATLAS detector. United States. doi:10.1016/j.nuclphysa.2018.10.079.
Balek, Petr. Tue . "Charged-hadron suppression in Pb+Pb and Xe+Xe collisions measured with the ATLAS detector". United States. doi:10.1016/j.nuclphysa.2018.10.079. https://www.osti.gov/servlets/purl/1503102.
@article{osti_1503102,
title = {Charged-hadron suppression in Pb+Pb and Xe+Xe collisions measured with the ATLAS detector},
author = {Balek, Petr},
abstractNote = {The ATLAS detector at the LHC recorded 0.49 nb–1 of Pb+Pb collisions and 25 pb–1 of pp collisions, both at the center-of-mass energy 5.02 TeV per nucleon pair. Recently, ATLAS also recorded 3μb–1 of Xe+Xe collisions at the center-of-mass energy 5.44 TeV, which provides a new opportunity to study the system-size dependence of the charged-hadron production in heavy-ion collisions. The large acceptance of the ATLAS detector allows to measure the spectra of charged hadrons in a wide range of pseudorapidity and transverse momentum. The nuclear modification factors RAA are constructed as a ratio of the spectra measured in Pb+Pb or Xe+Xe collisions to that measured in pp collisions. In conclusion, the RAA obtained in the two systems are presented for different centrality intervals and the results are discussed.},
doi = {10.1016/j.nuclphysa.2018.10.079},
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: Nuclear modification factors RAA as a function of pT measured in Xe+Xe collisions (closed markers) [5] and in Pb+Pb collisions (open markers) [4]. The intervals of the same marker styles have the same centrality (left) or comparable deposited energy in the forward calorimeter (right). The statistical uncertainties aremore » shown as the bars; systematic uncertainties are shown by the brackets.« less

Save / Share:

Figures / Tables found in this record:

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