• Browse all
Elliptic flow of muons from heavy-flavour hadron decays at forward rapidity in Pb–Pb collisions at $\sqrt{s_{\rm NN}}= 2.76$ TeV

The collaboration
Phys.Lett. B753 (2016) 41-56, 2016

Abstract (data abstract)
CERN-LHC. 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/$c$. 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/$c$ with a significance larger than $3\sigma$, based on the combination of statistical and systematic uncertainties. The $v_{2}$ magnitude tends to decrease towards more central collisions and with increasing $p_{ m T}$. It becomes compatible with zero in the interval $6<p_{\rm T}<10$ 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.

• #### Table 1

Data from Figure 1, top left pannel

10.17182/hepdata.39929.v1/t1

pT-differential inclusive muon $v_{2}$ extracted with scalar product method.

• #### Table 2

Data from Figure 1, top left pannel

10.17182/hepdata.39929.v1/t2

pT-differential inclusive muon $v_{2}$ extracted with two-particle $Q$ cumulants method.

• #### Table 3

Data from Figure 1, top right pannel

10.17182/hepdata.39929.v1/t3

pT-differential inclusive muon $v_{2}$ extracted with scalar product method.

• #### Table 4

Data from Figure 1, top right pannel

10.17182/hepdata.39929.v1/t4

pT-differential inclusive muon $v_{2}$ extracted with two-particle $Q$ cumulants method.

• #### Table 5

Data from Figure 1, bottom left pannel

10.17182/hepdata.39929.v1/t5

pT-differential inclusive muon $v_{2}$ extracted with scalar product method.

• #### Table 6

Data from Figure 1, bottom left pannel

10.17182/hepdata.39929.v1/t6

pT-differential inclusive muon $v_{2}$ extracted with two-particle cumulants method.

• #### Table 7

Data from Figure 1, bottom left and bottom right pannels

10.17182/hepdata.39929.v1/t7

pT-differential inclusive muon $v_{2}$ extracted with four-particle cumulants method.

• #### Table 8

Data from Figure 1, bottom right pannel

10.17182/hepdata.39929.v1/t8

pT-differential inclusive muon $v_{2}$ extracted with Lee-Yang zeros (Sum) method.

• #### Table 9

Data from Figure 1, bottom right pannel

10.17182/hepdata.39929.v1/t9

pT-differential inclusive muon $v_{2}$ extracted with Lee-Yang zeros (Prod) method.

• #### Table 10

Data from Figure 3, top left pannel

10.17182/hepdata.39929.v1/t10

pT-differential $v_{2}$ of muons from heavy-flavour decays extracted with scalar product method.

• #### Table 11

Data from Figure 3, top left pannel

10.17182/hepdata.39929.v1/t11

pT-differential $v_{2}$ of muons from heavy-flavour decays extracted with two-particle $Q$ cumulants method.

• #### Table 12

Data from Figure 3, top right pannel

10.17182/hepdata.39929.v1/t12

pT-differential $v_{2}$ of muons from heavy-flavour decays extracted with scalar product method.

• #### Table 13

Data from Figure 3, top right pannel

10.17182/hepdata.39929.v1/t13

pT-differential $v_{2}$ of muons from heavy-flavour decays extracted with two-particle $Q$ cumulants method.

• #### Table 14

Data from Figure 3, bottom left pannel

10.17182/hepdata.39929.v1/t14

pT-differential $v_{2}$ of muons from heavy-flavour decays extracted with scalar product method.

• #### Table 15

Data from Figure 3, bottom left pannel

10.17182/hepdata.39929.v1/t15

pT-differential $v_{2}$ of muons from heavy-flavour decays extracted with two-particle cumulants method.

• #### Table 16

Data from Figure 3, bottom left and bottom right pannels

10.17182/hepdata.39929.v1/t16

pT-differential $v_{2}$ of muons from heavy-flavour decays extracted with four-particle cumulants method.

• #### Table 17

Data from Figure 3, bottom right pannel

10.17182/hepdata.39929.v1/t17

pT-differential $v_{2}$ of muons from heavy-flavour decays extracted with Lee-Yang zeros (Sum) method.

• #### Table 18

Data from Figure 3, bottom right pannel

10.17182/hepdata.39929.v1/t18

pT-differential $v_{2}$ of muons from heavy-flavour decays extracted with Lee-Yang zeros (Prod) method.

• #### Table 19

Data from Figure 4

10.17182/hepdata.39929.v1/t19

Elliptic flow of muons from heavy-flavour hadron decays as a function of the collision centrality extracted with scalar product method.

• #### Table 20

Data from Figure 4

10.17182/hepdata.39929.v1/t20

Elliptic flow of muons from heavy-flavour hadron decays as a function of the collision centrality extracted with two-particle cumulants method.