Elliptic flow of muons from heavy-flavour hadron decays at forward rapidity in Pb–Pb collisions at √sNN = 2.76 TeV
ALICE Collaboration. (2016). Elliptic flow of muons from heavy-flavour hadron decays at forward rapidity in Pb–Pb collisions at √sNN = 2.76 TeV. Physics Letters B, 753, 41–56. https://doi.org/10.1016/j.physletb.2015.11.059
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Physics Letters BAuthors
Date
2016Copyright
© 2015 CERN for the benefit of the ALICE Collaboration. Published by Elsevier B.V. This is an open access article under the CC BY license. Funded by SCOAP3.
The elliptic flow, v2, of muons from heavy-flavour hadron decays at forward rapidity (2.5 < y < 4)
is measured in Pb–Pb collisions at √sNN = 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 v2 of muons from heavy-flavour hadron decays on the collision centrality, in the range 0–40%, and
on transverse momentum, pT, is studied in the interval 3 < pT < 10 GeV/c. A positive v2 is observed
with the scalar product and two-particle Q cumulants in semi-central collisions (10–20% and 20–40%
centrality classes) for the pT interval from 3 to about 5 GeV/c with a significance larger than 3σ,
based on the combination of statistical and systematic uncertainties. The v2 magnitude tends to decrease
towards more central collisions and with increasing pT. It becomes compatible with zero in the interval
6 < pT < 10 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.
...


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Except where otherwise noted, this item's license is described as © 2015 CERN for the benefit of the ALICE Collaboration. Published by Elsevier B.V. This is an open access article under the CC BY license. Funded by SCOAP3.
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