D meson elliptic flow in non-central Pb-Pb collisions at \(\sqrt{s_{NN}}\) = 2.76TeV
Alme, Johan; Erdal, Hege Austrheim; Helstrup, Håvard; Hetland, Kristin Fanebust; Kileng, Bjarte; Altinpinar, Sedat; Djuvsland, Øystein; Fehlker, Dominik; Haaland, Øystein Senneset; Huang, Meidana; Kanaki, Kalliopi; Langøy, Rune; Larsen, Dag Toppe; Lien, Jørgen; Lønne, Per-Ivar; Nystrand, Joakim; Rehman, Attiq ur; Røed, Ketil; Røhrich, Dieter; Skjerdal, Kyrre; Ullaland, Kjetil; Wagner, Boris; Yang, Shiming; Øvrebekk, Gaute; Bätzing, Paul Christoph; Dordic, Olja; Eyyubova, Gyulnara; Kværnø, Henning; Lindal, Svein; Løvhøiden, Gunnar; Milosevic, Jovan; Nilsson, Mads Stormo; Pocheptsov, Timur Anatolievich; Qvigstad, Henrik; Richter, Matthias; Skaali, Toralf Bernhard; Tveter, Trine Spedstad; Wikne, Jon Christopher; Abelev, Betty; Adam, Jaroslav; Adamová, Dagmar; Adare, Andrew Marshall; Aggarwal, Madan M.; Aglieri Rinella, Gianluca; Agocs, Andreas Gabor; Agostinelli, Andrea; Aguilar Salazar, Saul; Ahammed, Zubayer; Ahmad, Nazeer; Ahmad Masoodi, Arshar; ALICE, Collaboration
Peer reviewed, Journal article
Published version
View/ Open
Date
2013-09Metadata
Show full item recordCollections
Original version
https://doi.org/10.1103/physrevlett.111.102301Abstract
Azimuthally anisotropic distributions of \(D^0, D^+\) and \(D^{*+}\) mesons were studied in the central rapidity region (|y| < 0.8) in Pb-Pb collisions at a centre-of-mass energy \(\sqrt{s_{NN}}\) = 2.76 TeV per nucleon-nucleon collision, with the ALICE detector at the LHC. The second Fourier coefficient \(\nu_2\) (commonly denoted elliptic flow) was measured in the centrality class 30-50% as a function of the D meson transverse momentum \(p_T\), in the range 2-16 GeV/c. The measured \(\nu_2\) of D mesons is comparable in magnitude to that of light-flavour hadrons. It is positive in the range 2 < \(p_T\) < 6 GeV/c with 5.7 \(\sigma\) significance, based on the combination of statistical and systematic uncertainties.