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The \pT-differential yields of muons from heavy-flavour hadron decays at forward rapidity (2.5<y<4) in central (\cent{0}{10}), semi-central (\cent{20}{40}), and peripheral (\cent{60}{80}) Pb--Pb collisions at \fivenn{} (upper panel), and in central (\cent{0}{10}) Pb--Pb collisions at \twosevensixnn (lower panel). Statistical uncertainties (vertical bars) and systematic uncertainties (open boxes) are shown. The additional systematic uncertainty on normalisation in Pb--Pb collisions at \sNN~=~5.02 (2.76)~\TeV for MSL- and MSH-triggered events, respectively, is not included in the uncertainty boxes. (see Table~???).
The \pT-differential nuclear modification factor \RAA of muons from heavy-flavour hadron decays at forward rapidity (2.5<y<4) in central (\cent{0}{10}, top), semi-central (\cent{20}{40}, middle), and peripheral (\cent{60}{80}, bottom) Pb--Pb collisions at \fivenn{} (symbols). Statistical (vertical bars) and systematic uncertainties (open boxes) are shown. The filled boxes centered at \RAA=1 represent the normalisation uncertainty of pp and Pb--Pb measurements. Horizontal bars reflect the bin widths and the values are shown at the centre of the bin. Left: the measured \RAA is compared with the TAMU and SCET models~\cite{He:2014cla,Kang:2016ofv} displayed with their uncertainty bands. Right: the measured \RAA is compared with MC@sHQ+EPOS2 model calculations with pure collisional energy loss (full lines) and a combination of collisional and radiative energy loss (dashed lines)~\cite{Nahrgang:2013xaa,Nahrgang:2013saa}.
Comparison of the \pT-differential nuclear modification factor of muons from heavy-flavour hadron decays at forward rapidity (2.5<y<4) in central Pb--Pb collisions at \fivenn (green symbols) and \twosevensixnn (red symbols). Statistical (vertical bars) and systematic uncertainties (open boxes) are shown. The filled boxes centered at \RAA=1 are the normalisation uncertainties. Horizontal bars represent the bin widths.
Comparison of the \pT-differential nuclear modification factors \RAA of muons from heavy-flavour hadron decays at forward rapidity (2.5<y<4) in central Pb--Pb collisions at \fivenn (top) and \twosevensixnn (bottom) with MC@sHQ+EPOS2 calculations~\cite{Nahrgang:2013xaa,Nahrgang:2013saa} with different scenarios considering either a combination of collisional and radiative energy loss (left) or a pure collisional energy loss (right). The predictions are shown for muons from heavy-flavour hadron decays, muons from only charm-hadron decays and muons from only beauty-hadron decays.