Measurement of the centrality and pseudorapidity dependence of the integrated elliptic flow in lead-lead collisions at root S-NN=2.76 TeV with the ATLAS detector

ATLAS Collaboration

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9 Citations (Scopus)

Abstract

The integrated elliptic flow of charged particles produced in Pb+Pb collisions at root S-NN = 2.76 TeV has been measured with the ATLAS detector using data collected at the Large Hadron Collider. The anisotropy parameter, upsilon(2), was measured in the pseudorapidity range |eta| <= 2.5 with the event-plane method. In order to include tracks with very low transverse momentum p(T), thus reducing the uncertainty in upsilon(2) integrated over p(T), a 1 mu b(-1) data sample recorded without a magnetic field in the tracking detectors is used. The centrality dependence of the integrated upsilon(2) is compared to other measurements obtained with higher PT thresholds. The integrated elliptic flow is weakly decreasing with |eta|. The integrated upsilon 2 transformed to the rest frame of one of the colliding nuclei is compared to the lower-energy RHIC data.
Original languageEnglish
Article number2982
JournalEuropean Physical Journal C
Volume74
Issue number8
DOIs
Publication statusPublished - 13 Aug 2014

Keywords

  • HEAVY-ION COLLISIONS
  • QUARK-GLUON PLASMA
  • NUCLEAR COLLISIONS
  • COLLABORATION
  • PERSPECTIVE

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