Abstract: CERN-LHC. Study of the anisotropy of the azimuthal distributions of charged particles produced in Lead-Lead collisions at a centre of mass energy per nulceon of 2.76 TeV. The elliptic anisotropy parameter, V2, defined as the second coefficient in a Fourier expansion of the particle invariant yields, is extracted using the event-plane method (EP), two- and four-particle cumulants (C2 and C4) ad Lee-Yang zeros (LYZ). V2 is presented as a function of transverse momentum PT, pseudorapidity (ETARAP) over the ranges in PT of 0-3 GeV, in |ETARAP| <...
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