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In view of the upcoming ALICE experiment, a dedicated detector to study ultra-relativistic heavy ion collisions at the Large Hadron Collider (LHC) at CERN, the present thesis has been devoted to the study of Elliptic Flow, i.e. the azimuthal anisotropy in the momenta distribution of the final state particles produced in the collision. The anisotropic flow is a key observable to study the thermodynamic properties and the Equation of State of the system created in the collision: the final momenta anisotropy can be connected to the spatial anisotropy of the initial state only by assuming that the system's constituents are strongly coupled and the system behaves as a relativistic fluid. The expected values of elliptic flow and charged multiplicity have been extrapolated to LHC energy (for lead-lead collision at 5.5 TeV per nucleon) in two ...
ALICE (A Large Ion Collider Experiment) is a general-purpose, heavy-ion detector at the CERN LHC which focuses on QCD, the strong-interaction sector of the Standard Model. It is designed to address the physics of strongly interacting matter and the quark-gluon plasma at extreme values of energy density and temperature in nucleus-nucleus collisions. Besides running with Pb ions, the physics programme includes collisions with lighter ions, lower energy running and dedicated proton-nucleus runs. ALICE will also take data with proton beams at the top LHC energy to collect reference data for the heavy-ion programme and to address several QCD topics for which ALICE is complementary to the other LHC detectors. The ALICE detector has been built by a collaboration including currently over 1000 physicists and engineers from 105 Institutes in 30 ...
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