Elliptic flow of muons from heavy-flavour hadron decays at forward rapidity in Pb-Pb collisions at \(\sqrt{s_{\rm NN}}=2.76\) TeV
Adam, Jaroslav; Adamová, Dagmar; Aggarwal, Madan M.; Aglieri Rinella, Gianluca; Agnello, Michelangelo; Agrawal, Nikita; Ahammed, Zubayer; Ahn, Sang Un; Aiola, Salvatore; Akindinov, Alexander; Alme, Johan; Helstrup, Håvard; Hetland, Kristin Fanebust; Kileng, Bjarte; Altinpinar, Sedat; Djuvsland, Øystein; Haaland, Øystein Senneset; Huang, Meidana; Lønne, Per-Ivar; Nystrand, Joakim; Rehman, Attiq ur; Røhrich, Dieter; Tambave, Ganesh Jagannath; Ullaland, Kjetil; Velure, Arild; Wagner, Boris; Zhang, Hui; Zhou, Zhuo; Zhu, Hongsheng; Arsene, Ionut Christian; Bätzing, Paul Christoph; Dordic, Olja; Lindal, Svein; Mahmood, Sohail Musa; Milosevic, Jovan; Qvigstad, Henrik; Richter, Matthias; Røed, Ketil; Skaali, Toralf Bernhard; Tveter, Trine Spedstad; Wikne, Jon Christopher; Zhao, Chengxin; Langøy, Rune; Lien, Jørgen André; Alam, Sk Noor; Aleksandrov, Dimitry; Alessandro, Bruno; Alfaro Molina, José Rubén; Alexandre, Didier; Alici, Andrea; Alkin, Anton; ALICE, Collaboration
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2016-02Metadata
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Adam J, Adamová D, Aggarwal MM, Aglieri Rinella G, Agnello M, Agrawal N, Ahammed Z, Ahn SU, Aiola S, Akindinov A, Alme J, Helstrup H, Hetland KF, Kileng B, Altinpinar S, Djuvsland Ø, Haaland ØS, Huang M, Lønne P, Nystrand J, Rehman Au, Røhrich D, Tambave GJ, Ullaland K, Velure A, Wagner B, Zhang H, Zhou Z, Zhu H, Arsene IC, Bätzing P, Dordic O, Lindal S, Mahmood SM, Milosevic J, Qvigstad H, Richter M, Røed K, Skaali TB, Tveter TS, Wikne JC, Zhao C, Langøy R, Lien JA, Alam SN, Aleksandrov D, Alessandro B, Alfaro Molina, Alexandre D, Alici A, Alkin A, ALICE C. Elliptic flow of muons from heavy-flavour hadron decays at forward rapidity in Pb-Pb collisions at √sNN = 2.76 TeV. Physics Letters B. 2016;753:41-56 https://doi.org/10.1016/j.physletb.2015.11.059Abstract
The elliptic flow, \(v_{2}\). of muons from heavy-flavour hadron decays at forward rapidity \(2.5 < y < 4\) is measured in Pb--Pb collisions at \(\sqrt{s_{\rm NN}}\) = 2.76 TeV with the ALICE detector at the LHC. The scalar product, two- and four-particle \(Q\) cumulants and Lee-Yang zeros methods are used. The dependence of the \(v_2\) of muons from heavy-flavour hadron decays on the collision centrality, in the range 0--40%, and on transverse momentum, \(p_{\rm T}\). is studied in the interval \(3 < p_{\rm T} < 10\) GeV/\).\). A positive \(v_2\) is observed with the scalar product and two-particle \(Q\) cumulants in semi-central collisions (10--20% and 20--40% centrality classes) for the \(p_{\rm T}\) interval from 3 to about 5 GeV/\).\). The \(v_2\) magnitude tends to decrease towards more central collisions and with increasing \(p_{\rm T}\). It becomes compatible with zero in the interval \(6 < p_{\rm T} < 10{\rm GeV/}c\). The results are compared to models describing the interaction of heavy quarks and open heavy-flavour hadrons with the high-density medium formed in high-energy heavy-ion collisions. The model calculations describe the measured \(v_2\) within uncertainties.