Production of muons from heavy-flavour hadron decays at high transverse momentum in Pb–Pb collisions at sNN=5.02 and 2.76 TeV
- Acharya, Shreyasi et al
- arXiv:2011.05718CERN-EP-2020-186
 | 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~\ref{tab:SystUnc}). |
 | 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. |