@Article{ATLASCollaborationAaboud_etal2018, author="ATLAS Collaboration (Aaboud, M. et al and Alvarez Piqueras, D. and Bailey, A. J. and Barranco Navarro, L. and Cabrera Urban, S. and Castillo, F. L. and Castillo Gimenez, V. and Cerda Alberich, L. and Costa, M. J. and Escobar, C. and Estrada Pastor, O. and Ferrer, A. and Fiorini, L. and Fuster, J. and Garcia, C. and Garcia Navarro, J. E. and Gonzalez de la Hoz, S. and Higon-Rodriguez, E. and Jimenez Pena, J. and Lacasta, C. and Lozano Bahilo, J. J. and Madaffari, D. and Mamuzic, J. and Marti-Garcia, S. and Melini, D. and Mitsou, V. A. and Pedraza Lopez, S. and Rodriguez Bosca, S. and Rodriguez Rodriguez, D. and Salt, J. and Soldevila, U. and Sanchez, J. and Valero, A. and Valls Ferrer, J. A. and Vos, M.", title="Measurement of the suppression and azimuthal anisotropy of muons from heavy-flavor decays in Pb plus Pb collisions at root s(NN)=2.76 TeV with the ATLAS detector", journal="Physical Review C", year="2018", publisher="Amer Physical Soc", volume="98", number="4", pages="044905--34pp", abstract="ATLAS measurements of the production of muons from heavy-flavor decays in root s(NN) = 2.76 TeV Pb+Pb collisions and root s = 2.76 TeV pp collisions at the LHC are presented. Integrated luminosities of 0.14 nb(-1) and 570 nb(-1) are used for the Pb+Pb and pp measurements, respectively, which are performed over the muon transverse momentum range 4 < pT < 14 GeV and for five Pb+Pb centrality intervals. Backgrounds arising from in-flight pion and kaon decays, hadronic showers, and misreconstructed muons are statistically removed using a template-fitting procedure. The heavy-flavor muon differential cross sections and per-event yields are measured in pp and Pb+Pb collisions, respectively. The nuclear modification factor R-AA obtained from these is observed to be independent of pT, within uncertainties, and to be less than unity, which indicates suppressed production of heavy-flavor muons in Pb+Pb collisions. For the 10{\%} most central Pb+Pb events, the measured R-AA is approximately 0.35. The azimuthal modulation of the heavy-flavor muon yields is also measured and the associated Fourier coefficients v(n) for n = 2, 3, and 4 are given as a function of pT and centrality. They vary slowly with pT and show a systematic variation with centrality which is characteristic of other anisotropy measurements, such as that observed for inclusive hadrons. The measured R-AA and v(n) values are also compared with theoretical calculations.", optnote="WOS:000447933100002", optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=3774), last updated on Tue, 06 Nov 2018 11:44:35 +0000", issn="2469-9985", doi="10.1103/PhysRevC.98.044905", opturl="http://arxiv.org/abs/1805.05220", opturl="https://doi.org/10.1103/PhysRevC.98.044905", archivePrefix="arXiv", eprint="1805.05220", language="English" }