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Charged-hadron suppression in Pb plus Pb and Xe plus Xe collisions measured with the ATLAS detector
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.ORCID iD: 0000-0002-1253-8583
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
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Number of Authors: 29192019 (English)In: Nuclear Physics A, ISSN 0375-9474, E-ISSN 1873-1554, Vol. 982, p. 571-574Article in journal (Refereed) Published
Abstract [en]

The ATLAS detector at the LHC recorded 0.49 nb(-1) of Pb+Pb collisions and 25 of pp(-1) collisions, both at the center-of-mass energy 5.02 TeV per nucleon pair. Recently, ATLAS also recorded 30 mu b(-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. The R-AA obtained in the two systems are presented for different centrality intervals and the results are discussed.

Place, publisher, year, edition, pages
2019. Vol. 982, p. 571-574
Keywords [en]
xenon-xenon collisions, lead-lead collisions, charged-hadron production, nuclear modification factor
National Category
Subatomic Physics
Identifiers
URN: urn:nbn:se:uu:diva-378203DOI: 10.1016/j.nuclphysa.2018.10.079ISI: 000457515500128OAI: oai:DiVA.org:uu-378203DiVA, id: diva2:1293524
Note

For complete list of authors see http://dx.doi.org/10.1016/j.nuclphysa.2018.10.079

Available from: 2019-03-05 Created: 2019-03-05 Last updated: 2019-03-05Bibliographically approved

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Asimakopoulou, Eleni M.Bergeås Kuutmann, ElinBokan, PetarBrenner, RichardEkelöf, TordEllert, MattiasFerrari, ArnaudGradin, P. O. JoakimMårtensson, Mikael U. F.Sales De Bruin, Pedro

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Balek, PetrAsimakopoulou, Eleni M.Bergeås Kuutmann, ElinBokan, PetarBrenner, RichardEkelöf, TordEllert, MattiasFerrari, ArnaudGradin, P. O. JoakimMårtensson, Mikael U. F.Sales De Bruin, Pedro
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High Energy Physics
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Nuclear Physics A
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