RT Journal Article
T1 Elliptic flow of electrons from heavy-flavour hadron decays at mid-rapidity in Pb-Pb collisions at √sNN=2.76 TeV
A1 ALICE Collaboration, 
A1 González Ferreiro, Elena
K1 Heavy Ion Experiments
AB The elliptic ow of electrons from heavy-avour hadron decays at mid-rapidity(jyj < 0.7) is measured in Pb{Pb collisions atp√sNN = 2:76TeV with ALICE at the LHC.The particle azimuthal distribution with respect to the reaction plane can be parametrizedwith a Fourier expansion, where the second coe cient (v2) represents the elliptic ow.The v2 coe cient of inclusive electrons is measured in three centrality classes (0{10%,10{20% and 20{40%) with the event plane and the scalar product methods in the transversemomentum (pT) intervals 0.5{13 GeV/c and 0.5{8 GeV/c, respectively. After subtractingthe background, mainly from photon conversions and Dalitz decays of neutral mesons,a positive v2 of electrons from heavy-avour hadron decays is observed in all centralityclasses, with a maximum signi cance of 5:9  in the interval 2 < pT < 2.5 GeV/c in semicentralcollisions (20{40%). The value of v2 decreases towards more central collisions at lowand intermediate pT (0.5 < pT < 3 GeV/c). The v2 of electrons from heavy-avour hadrondecays at mid-rapidity is found to be similar to the one of muons from heavy-avour hadrondecays at forward rapidity (2.5 < y < 4). The results are described within uncertaintiesby model calculations including substantial elastic interactions of heavy quarks with anexpanding strongly-interacting medium
PB Springer
SN 1029-8479
YR 2016
FD 2016
LK http://hdl.handle.net/10347/22150
UL http://hdl.handle.net/10347/22150
LA eng
NO Adam, J., Adamová, D., Aggarwal, M.M. et al. Elliptic flow of electrons from heavy-flavour hadron decays at mid-rapidity in Pb-Pb collisions at √sNN=2.76 TeV. J. High Energ. Phys. 2016, 28 (2016) https://doi.org/10.1007/JHEP09(2016)028
DS Minerva
RD 26 abr 2026