Measurement of higher-order harmonic azimuthal anisotropy in PbPb collisions at root s(NN)=2.76 TeV
- Chatrchyan, S.
- Khachatryan, V.
- Sirunyan, A. M.
- Tumasyan, A.
- Adam, W.
- Bergauer, T.
- Dragicevic, M.
- Eroe, J.
- Fabjan, C.
- Friedl, M.
- Fruehwirth, R.
- Ghete, V. M.
- Hartl, C.
- Hoermann, N.
- Hrubec, J.
- Jeitler, M.
- Kiesenhofer, W.
- Knuenz, V.
- Krammer, M.
- Kraetschmer, I.
- Liko, D.
- Mikulec, I.
- Rabady, D.
- Rahbaran, B.
- Rohringer, H.
- Schoefbeck, R.
- Strauss, J.
- Taurok, A.
- Treberer-Treberspurg, W.
- Waltenberger, W.
- Wulz, C.E.
- Mossolov, V.
- Shumeiko, N.
- Gonzalez, J. Suarez
- Alderweireldt, S.
- Bansal, M.
- Bansal, S.
- Cornelis, T.
- De Wol
DOIAbstract
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 root 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 < p(T) < 8.0 GeV/c), collision centrality (0%-70%), and pseudorapidity (|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...
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