@article{097383b4fc834649bf05d139197a9026,

title = "Azimuthal anisotropy of charged particles with transverse momentum up to 100 GeV/c in PbPb collisions at sNN=5.02 TeV",

abstract = "The Fourier coefficients v2 and v3 characterizing the anisotropy of the azimuthal distribution of charged particles produced in PbPb collisions at sNN=5.02 TeV are measured with data collected by the CMS experiment. The measurements cover a broad transverse momentum range, 1T<100 GeV/c. The analysis focuses on the pT>10 GeV/c range, where anisotropic azimuthal distributions should reflect the path-length dependence of parton energy loss in the created medium. Results are presented in several bins of PbPb collision centrality, spanning the 60% most central events. The v2 coefficient is measured with the scalar product and the multiparticle cumulant methods, which have different sensitivities to initial-state fluctuations. The values from both methods remain positive up to pT∼60–80 GeV/c, in all examined centrality classes. The v3 coefficient, only measured with the scalar product method, tends to zero for pT≳20 GeV/c. Comparisons between theoretical calculations and data provide new constraints on the path-length dependence of parton energy loss in heavy ion collisions and highlight the importance of the initial-state fluctuations.",

keywords = "CMS, Flow, High-p, Jet quenching, Parton energy loss, QGP",

author = "{The CMS collaboration} and Sirunyan, {A. M.} and A. Tumasyan and W. Adam and E. Asilar and T. Bergauer and J. Brandstetter and E. Brondolin and M. Dragicevic and J. Er{\"o} and M. Flechl and M. Friedl and R. Fr{\"u}hwirth and Ghete, {V. M.} and C. Hartl and N. H{\"o}rmann and J. Hrubec and M. Jeitler and A. K{\"o}nig and I. Kr{\"a}tschmer and D. Liko and T. Matsushita and I. Mikulec and D. Rabady and N. Rad and B. Rahbaran and H. Rohringer and J. Schieck and J. Strauss and W. Waltenberger and Wulz, {C. E.} and O. Dvornikov and V. Makarenko and V. Mossolov and {Suarez Gonzalez}, J. and V. Zykunov and N. Shumeiko and S. Alderweireldt and {De Wolf}, {E. A.} and X. Janssen and J. Lauwers and {Van De Klundert}, M. and {Van Haevermaet}, H. and {Van Mechelen}, P. and {Van Remortel}, N. and {Van Spilbeeck}, A. and {Abu Zeid}, S. and F. Blekman and J. D'Hondt and N. Daci and {De Bruyn}, I. and K. Deroover and S. Lowette and S. Moortgat and L. Moreels and A. Olbrechts and Q. Python and K. Skovpen and S. Tavernier and {Van Doninck}, W. and {Van Mulders}, P. and {Van Parijs}, I. and H. Brun and B. Clerbaux and {De Lentdecker}, G. and H. Delannoy and G. Fasanella and L. Favart and R. Goldouzian and A. Grebenyuk and G. Karapostoli and T. Lenzi and A. L{\'e}onard and J. Luetic and T. Maerschalk and Andrew Whitbeck and Nural Akchurin and Shuichi Kunori and Sungwon Lee and Igor Volobouev",

year = "2018",

month = jan,

day = "10",

doi = "10.1016/j.physletb.2017.11.041",

language = "English",

volume = "776",

pages = "195--216",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

}