The $R_{\text{AA}}$ and $v_{2}$ of muons from heavy-quark decays in Pb+Pb collisions at $\sqrt{s_{_\text{NN}}}=2.76$ TeV with the ATLAS detector

The ATLAS experiment measures the production of muons coming from the decays of heavy flavour particles in the kinematic interval $4 {<} p_{\text{T}} {<} 14$ GeV and $|\eta|{<}1$. The measurement is performed in $\sqrt{s}=2.76$ TeV pp collisions and over the centrality range of 0-60% in $\sqrt{s_{_\text{NN}}} = 2.76$ TeV Pb+Pb collisions. The heavy flavour muon differential cross-sections and per-event yields are measured in pp and Pb+Pb collisions, respectively. The nuclear modification factor measured 0-10%, most central collisions is observed to be approximately equal to 0.4 and independent of $p_{\text{T}}$ within uncertainties, which indicates suppressed production of heavy flavour muons in Pb+Pb collisions. The muon yields are also measured as a function of the azimuthal angle with respect to the event plane. Fourier coefficients associated with the second harmonic modulation varies slowly with $p_{\text{T}}$ and show a systematic variation with centrality that is characteristic of other elliptic anisotropy measurements.