[PDF] Top 20 Centrality, rapidity and transverse momentum dependence of isolated prompt photon production in lead-lead collisions at $\sqrt{s_{\mathrm{NN}}} = 2.76$ TeV measured with the ATLAS detector

... The ATLAS calorimeter is the primary subsystem used for the measurement presented ...4.9 with electromagnetic (EM) and hadronic sections. The EM section is a ... See full document

... The ATLAS detector [9] is well suited for measurements of azimuthal an- isotropies over a large pseudorapidity ...range. The relevant detectors for this analysis are the inner ... See full document

... used in this analysis are measured in bins of centrality and dijet ...imbalance. The dependence on centrality in PbPb collisions is ... See full document

... made of unit-normalized η and φ distributions of clusters in each of the first two pixel layers between data and ...MC. The agreement between the η ... See full document

... Proton–nucleus collisions at ultrarelativistic energies provide an opportunity to understand the role of the nuclear environment in modifying hard scattering ...between ... See full document

... by the ATLAS experiment at the ...are measured using a standard event- plane method and a scalar-product method, and the latter method is found to give a ... See full document

... hits in the inner detector using the standard ATLAS track recon- struction algorithm [25] with settings optimized for the high hit density in heavy ion ... See full document

... The centrality dependence of the mean charged-particle multiplicity as a function of pseu- dorapidity is measured in approximately 1 µb −1 of ... See full document

... through the medium and lose ...process in which constituents of the parton shower may be elastically or inelastically scattered by the constituents of the plasma, ... See full document

... heavy-ion collisions form hot strongly interacting matter known as the quark–gluon plasma (QGP) [ 1 – 4 ...]. The characterization of the properties of the QGP provides ... See full document

... The ATLAS Collaboration has measured the inclusive production of Z bosons via their de- cays into electron and muon pairs in p+Pb collisions at √ s ... See full document

... mine the tracking efficiencies and the rates of fake ...tracks. The HIJING event generator [25] was used to produce minimum-bias Pb+Pb ...generated with the default ... See full document

... 2.76 TeV proton–proton collisions are ...are measured in datasets corre- sponding to an integrated luminosity of ...−1 and 4.0 pb −1 , respectively, recorded with ... See full document

... to the second sampling layer of the electro- magnetic calorimeter, which typically contains over 50% of the shower ...energy. In the dense environment of the ... See full document

... or of the neighbouring jets have the same upper bound of 300 GeV were also used in this ...analysis. The number of bins and their bound- aries were chosen to ... See full document

... spin of di-photon resonances. For this purpose, the Collins-Soper rest frame is preferred to other frame definitions because of its robustness with respect to initial state ...radiation. ... See full document

... ing the matter produced in ultra-relativistic heavy-ion ...collisions. In these collisions, a hot medium of deconfined colour charges is produced, known as the quark–gluon ... See full document

... taken with the CMS experiment at the LHC at the beginning of ...description of the apparatus can be found in [30] . The main detector ... See full document

... on the number of outgoing b (or b) quarks in the 2 → 2 hard ...scattering. In the flavor creation process (denoted FCR), both of the outgoing ... See full document

... value of R helps to reduce the deterioration of the jet energy resolution in PbPb collisions due to fluctuations of the background from soft ...interactions. ... See full document