The elliptic flow, <
span id="mml
si2" cla
ss="mathml
src"><
span cla
ss="formulatext
stixSupport mathImg" data-mathURL="/
science?_ob=MathURL&_method=retrieve&_eid=1-
s2.0-S0370269315009156&_mathId=
si2.gif&_u
ser=111111111&_pii=S0370269315009156&_rdoc=1&_i
ssn=03702693&md5=af612936c94892de2098a0b323cdcab5" title="Click to view the MathML
source">v<
sub>2
sub>
span><
span cla
ss="mathContainer hidden"><
span cla
ss="mathCode">
span>
span>
span>, of muon
s from heavy-flavour hadron decay
s at forward rapidity (<
span id="mml
si29" cla
ss="mathml
src"><
span cla
ss="formulatext
stixSupport mathImg" data-mathURL="/
science?_ob=MathURL&_method=retrieve&_eid=1-
s2.0-S0370269315009156&_mathId=
si29.gif&_u
ser=111111111&_pii=S0370269315009156&_rdoc=1&_i
ssn=03702693&md5=048e84b72baecda5d0c5816e647b7d4d" title="Click to view the MathML
source">2.5<y<4
span><
span cla
ss="mathContainer hidden"><
span cla
ss="mathCode">
span>
span>
span>) i
s mea
sured in Pb&nda
sh;Pb colli
sion
s at <
span id="mml
si1" cla
ss="mathml
src">
source" class="mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0370269315009156&_mathId=si1.gif&_user=111111111&_pii=S0370269315009156&_rdoc=1&_issn=03702693&md5=8065ea62e2341e638520e7e3f068a74f">ss="imgLazyJSB inlineImage" height="15" width="105" alt="View the MathML source" style="margin-top: -5px; vertical-align: middle" title="View the MathML source" src="/sd/grey_pxl.gif" data-inlimgeid="1-s2.0-S0370269315009156-si1.gif">script>style="vertical-align:bottom" width="105" alt="View the MathML source" title="View the MathML source" src="http://origin-ars.els-cdn.com/content/image/1-s2.0-S0370269315009156-si1.gif">script><
span cla
ss="mathContainer hidden"><
span cla
ss="mathCode">
span>
span>
span> with the ALICE detector at the LHC. The
scalar product, two- and four-particle
Q cumulant
s and Lee&nda
sh;Yang zero
s method
s are u
sed. The dependence of the <
span id="mml
si2" cla
ss="mathml
src"><
span cla
ss="formulatext
stixSupport mathImg" data-mathURL="/
science?_ob=MathURL&_method=retrieve&_eid=1-
s2.0-S0370269315009156&_mathId=
si2.gif&_u
ser=111111111&_pii=S0370269315009156&_rdoc=1&_i
ssn=03702693&md5=af612936c94892de2098a0b323cdcab5" title="Click to view the MathML
source">v<
sub>2
sub>
span><
span cla
ss="mathContainer hidden"><
span cla
ss="mathCode">
span>
span>
span> of muon
s from heavy-flavour hadron decay
s on the colli
sion centrality, in the range 0&nda
sh;40%, and on tran
sver
se momentum, <
span id="mml
si4" cla
ss="mathml
src"><
span cla
ss="formulatext
stixSupport mathImg" data-mathURL="/
science?_ob=MathURL&_method=retrieve&_eid=1-
s2.0-S0370269315009156&_mathId=
si4.gif&_u
ser=111111111&_pii=S0370269315009156&_rdoc=1&_i
ssn=03702693&md5=ab56179a7d37d31ca4d53305b3fadf95" title="Click to view the MathML
source">p<
sub>T
sub>
span><
span cla
ss="mathContainer hidden"><
span cla
ss="mathCode">
span>
span>
span>, i
s studied in the interval <
span id="mml
si30" cla
ss="mathml
src"><
span cla
ss="formulatext
stixSupport mathImg" data-mathURL="/
science?_ob=MathURL&_method=retrieve&_eid=1-
s2.0-S0370269315009156&_mathId=
si30.gif&_u
ser=111111111&_pii=S0370269315009156&_rdoc=1&_i
ssn=03702693&md5=cce0b681be6752b5db65f41f44926e99" title="Click to view the MathML
source">3<p<
sub>T
sub><10 GeV/c
span><
span cla
ss="mathContainer hidden"><
span cla
ss="mathCode">
span>
span>
span>. A po
sitive <
span id="mml
si2" cla
ss="mathml
src"><
span cla
ss="formulatext
stixSupport mathImg" data-mathURL="/
science?_ob=MathURL&_method=retrieve&_eid=1-
s2.0-S0370269315009156&_mathId=
si2.gif&_u
ser=111111111&_pii=S0370269315009156&_rdoc=1&_i
ssn=03702693&md5=af612936c94892de2098a0b323cdcab5" title="Click to view the MathML
source">v<
sub>2
sub>
span><
span cla
ss="mathContainer hidden"><
span cla
ss="mathCode">
span>
span>
span> i
s ob
served with the
scalar product and two-particle
Q cumulant
s in
semi-central colli
sion
s (10&nda
sh;20% and 20&nda
sh;40% centrality cla
sse
s) for the <
span id="mml
si4" cla
ss="mathml
src"><
span cla
ss="formulatext
stixSupport mathImg" data-mathURL="/
science?_ob=MathURL&_method=retrieve&_eid=1-
s2.0-S0370269315009156&_mathId=
si4.gif&_u
ser=111111111&_pii=S0370269315009156&_rdoc=1&_i
ssn=03702693&md5=ab56179a7d37d31ca4d53305b3fadf95" title="Click to view the MathML
source">p<
sub>T
sub>
span><
span cla
ss="mathContainer hidden"><
span cla
ss="mathCode">
span>
span>
span> interval from 3 to about <
span id="mml
si6" cla
ss="mathml
src"><
span cla
ss="formulatext
stixSupport mathImg" data-mathURL="/
science?_ob=MathURL&_method=retrieve&_eid=1-
s2.0-S0370269315009156&_mathId=
si6.gif&_u
ser=111111111&_pii=S0370269315009156&_rdoc=1&_i
ssn=03702693&md5=fd2ebd478896cb30c84948fcd44ee05f" title="Click to view the MathML
source">5 GeV/c
span><
span cla
ss="mathContainer hidden"><
span cla
ss="mathCode">
span>
span>
span> with a
significance larger than 3
σ , ba
sed on the combination of
stati
stical and
sy
stematic uncertaintie
s. The <
span id="mml
si2" cla
ss="mathml
src"><
span cla
ss="formulatext
stixSupport mathImg" data-mathURL="/
science?_ob=MathURL&_method=retrieve&_eid=1-
s2.0-S0370269315009156&_mathId=
si2.gif&_u
ser=111111111&_pii=S0370269315009156&_rdoc=1&_i
ssn=03702693&md5=af612936c94892de2098a0b323cdcab5" title="Click to view the MathML
source">v<
sub>2
sub>
span><
span cla
ss="mathContainer hidden"><
span cla
ss="mathCode">
span>
span>
span> magnitude tend
s to decrea
se toward
s more central colli
sion
s and with increa
sing <
span id="mml
si4" cla
ss="mathml
src"><
span cla
ss="formulatext
stixSupport mathImg" data-mathURL="/
science?_ob=MathURL&_method=retrieve&_eid=1-
s2.0-S0370269315009156&_mathId=
si4.gif&_u
ser=111111111&_pii=S0370269315009156&_rdoc=1&_i
ssn=03702693&md5=ab56179a7d37d31ca4d53305b3fadf95" title="Click to view the MathML
source">p<
sub>T
sub>
span><
span cla
ss="mathContainer hidden"><
span cla
ss="mathCode">
span>
span>
span>. It become
s compatible with zero in the interval <
span id="mml
si7" cla
ss="mathml
src"><
span cla
ss="formulatext
stixSupport mathImg" data-mathURL="/
science?_ob=MathURL&_method=retrieve&_eid=1-
s2.0-S0370269315009156&_mathId=
si7.gif&_u
ser=111111111&_pii=S0370269315009156&_rdoc=1&_i
ssn=03702693&md5=16f93d450061906f5b7100f9724046f6" title="Click to view the MathML
source">6<p<
sub>T
sub><10 GeV/c
span><
span cla
ss="mathContainer hidden"><
span cla
ss="mathCode">
span>
span>
span>. The re
sult
s are compared to model
s de
scribing the interaction of heavy quark
s and open heavy-flavour hadron
s with the high-den
sity medium formed in high-energy heavy-ion colli
sion
s.