Anisotropic flow of charged hadrons, pions and (anti-)protons measured at high transverse momentum in Pb–Pb collisions at √sNN =2.76 TeV
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Publication date
2013
Authors
Abelev, B.I.
Adam, J.
Bjelogrlic, S
Chojnacki, M.
de Rooij, R. S.
Grelli, Alessandro
La Pointe, S.L.
Luparello, G.
Mischke, Andre
Nooren, G.J.L.
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Abstract
The elliptic, v2, triangular, v3, and quadrangular, v4, azimuthal anisotropic flow coefficients are measured for unidentified charged particles, pions, and (anti-)protons in Pb–Pb collisions at View the MathML source with the ALICE detector at the Large Hadron Collider. Results obtained with the event plane and four-particle cumulant methods are reported for the pseudo-rapidity range |η|8 GeV/c. The small pT dependence of the difference between elliptic flow results obtained from the event plane and four-particle cumulant methods suggests a common origin of flow fluctuations up to pT=8 GeV/c. The magnitude of the (anti-)proton elliptic and triangular flow is larger than that of pions out to at least pT=8 GeV/c indicating that the particle type dependence persists out to high pT.
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Abelev, B I, Adam, J, Bjelogrlic, S, Chojnacki, M, de Rooij, R S, Grelli, A, La Pointe, S L, Luparello, G, Mischke, A, Nooren, G J L, Peitzmann, T, Reicher, M, Snellings, R J M, Thomas, D, van Leeuwen, M, Veldhoen, M, Verweij, M, Zhou, Y & Zyzak, M 2013, 'Anisotropic flow of charged hadrons, pions and (anti-)protons measured at high transverse momentum in Pb–Pb collisions at √sNN =2.76 TeV', Physics Letters B, vol. 719, no. 1-3, pp. 18-28. https://doi.org/10.1016/j.physletb.2012.12.066