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
Number of Authors: 2862
2014 (English)In: European Physical Journal C, ISSN 1434-6044, E-ISSN 1434-6052, Vol. 74, no 8, 2982- p.Article in journal (Refereed) Published
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.
Place, publisher, year, edition, pages
2014. Vol. 74, no 8, 2982- p.
Heavy-Ion Collisions, Quark-Gluon Plasma, Nuclear Collisions, Collaboration, Perspective
IdentifiersURN: urn:nbn:se:kth:diva-151385DOI: 10.1140/epjc/s10052-014-2982-4ISI: 000340574300001ScopusID: 2-s2.0-84908310017OAI: oai:DiVA.org:kth-151385DiVA: diva2:748425
FunderSwedish Research Council
QC 201409192014-09-192014-09-192014-09-19Bibliographically approved