Speaker
Aaron Angerami
(Columbia University)
Description
Measurements of inclusive jet and heavy quark jet suppression in relativistic heavy ion collisions are presented. The measurements were performed using Pb+Pb collisions at $\sqrt{s_{NN}}=2.76$~TeV recorded with the ATLAS detector at the LHC during the 2010 Pb ion run. Results are obtained using calorimetrically reconstructed jets using the anti-kt algorithm with a per-event background subtraction procedure. Measurements of the single inclusive jet spectrum with jet radius parameters R = 0.2, 0.3, 0.4 and 0.5, are presented. The spectra are unfolded to correct for the finite energy resolution introduced by both detector effects and underlying event fluctuations. Single jet production, through the central-to-peripheral ratio RCP, is presented as a function of jet pT, centrality and jet radius. Measurements of the single inclusive muons are also presented over the range 4 < pT < 14 GeV, where the production is dominated by the semi-leptonic decays of open heavy flavor hadrons. The muon spectra and RCP are presented as a function of pT and centrality, which provide sensitivity to the quenching of heavy quarks.
Primary author
Aaron Angerami
(Columbia University)
