  Measurements are presented by the CMS Collaboration at the Large Hadron
Collider (LHC) of the higher-order harmonic coefficients that describe the
azimuthal anisotropy of charged particles emitted in sqrt(s[NN]) = 2.76 TeV
PbPb collisions. Expressed in terms of the Fourier components of the azimuthal
distribution, the n = 3-6 harmonic coefficients are presented for charged
particles as a function of their transverse momentum (0.3 < pt < 8.0 GeV),
collision centrality (0-70%), and pseudorapidity (abs(eta) < 2.0). The data are
analyzed using the event plane, multiparticle cumulant, and Lee-Yang zeros
methods, which provide different sensitivities to initial-state fluctuations.
Taken together with earlier LHC measurements of elliptic flow (n = 2), the
results on higher-order harmonic coefficients develop a more complete picture
of the collective motion in high-energy heavy-ion collisions and shed light on
the properties of the produced medium.
