Measurement of higher-order harmonic azimuthal anisotropy in PbPb collisions at root s(NN)=2.76 TeV

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Abstract

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 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.

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  • Chatrchyan S , Khachatryan V , Sirunyan AM , Tumasyan A , Adam W , Bergauer T , Dragicevic M , Ero J , Fabjan C , Friedl M , Fruhwirth R , Ghete VM , Hartl C , Hormann N , Hrubec J , Jeitler M , Kiesenhofer W , Knunz V , Krammer M , Kratschmer I , Liko D , Mikulec I , Rabady D , Rahbaran B , Rohringer H , Schofbeck R , Strauss J , Taurok A , Treberer-Treberspurg W , Waltenberger W , Wulz CE , Mossolov V , Shumeiko N , Gonzalez JS , Alderweireldt S , Bansal M , Bansal S , Cornelis T , De Wolf EA , Janssen X , Knutsson A , Luyckx S , Mucibello L , Ochesanu S , Roland B , Rougny R , Van Haevermaet H , Van Mechelen P , Van Remortel N , Van Spilbeeck A , Blekman F , Blyweert S , D'Hondt J , Heracleous N , Kalogeropoulos A , Keaveney J , Kim TJ , Lowette S , Maes M , Olbrechts A , Strom D , Tavernier S , Van Doninck W , Van Mulders P , Van Onsem GP , Villella I , Caillol C , Clerbaux B , De Lentdecker G , Favart L , Gay APR , Hreus T , Leonard A , Marage PE , Mohammadi A , Pernie L , Reis T , Seva T , Thomas L , Vander Velde C , Vanlaer P , Wang J , Adler V , Beernaert K , Benucci L , Cimmino A , Costantini S , Dildick S , Garcia G , Klein B , Lellouch J , Mccartin J , Rios AAO , Ryckbosch D , Sigamani M , Strobbe N , Thyssen F , Tytgat M , Walsh S , Yazgan E , Zaganidis N , Basegmez S , Beluffi C , Bruno G , Castello R , Caudron A , Ceard L , Da Silveira GG , Delaere C , du Pree T , Favart D , Forthomme L , Giammanco A , Hollar J , Jez P , Komm M , Lemaitre V , Liao J , Militaru O , Nuttens C , Pagano D , Pin A , Piotrzkowski K , Popov A , Quertenmont L , Selvaggi M , Marono MV , Garcia JMV , Beliy N , Caebergs T , Daubie E , Hammad GH , Alves GA , Martins MC , Martins T , Pol ME , Souza MHG , Alda WL , Carvalho W , Chinellato J , Custodio A , Da Costa EM , Damiao DD , Martins CD , De Souza SF , Malbouisson H , Malek M , Figueiredo DM , Mundim L , Nogima H , Da Silva WLP , Santaolalla J , Santoro A , Sznajder A , Manganote EJT , Pereira AV , Bernardes CA , Dias FA , Tomei TRPF , Gregores EM , Lagana C , Mercadante PG , Novaes SF , Padula SS , Genchev V , Iaydjiev P , Marinov A , Piperov S , Rodozov M , Sultanov G , Vutova M , Dimitrov A , Glushkov I , Hadjiiska R , Kozhuharov V , Litov L , Pavlov B , Petkov P , Bian JG , Chen GM , Chen HS , Chen M , Du R , Jiang CH , Liang D , Liang S , Meng X , Plestina R , Tao J , Wang X , Wang Z , Asawatangtrakuldee C , Ban Y , Guo Y , Li W , Liu S , Mao Y , Qian SJ , Teng H , Wang D , Zhang L , Zou W , Avila C , Montoya CAC , Sierra LFC , Florez C , Gomez JP , Moreno BG , Sanabria JC , Godinovic N , Lelas D , Polic D , Puljak I , Antunovic Z , Kovac M , Brigljevic V , Kadija K , Luetic J , Mekterovic D , Morovic S , Tikvica L , Attikis A , Mavromanolakis G , Mousa J , Nicolaou C , Ptochos F , Razis PA , Finger M , Finger MF , Abdelalim AA , Assran Y , Elgammal S , Kamel AE , Mahmoud MA , Radi A , Kadastik M , Muntel M , Murumaa M , Raidal M , Rebane L , Tiko A , Eerola P , Fedi G , Voutilainen M , Harkonen J , Karimaki V , Kinnunen R , Kortelainen MJ , Lampen T , Lassila-Perini K , Lehti S , Linden T , Luukka P , Maenpaa T , Peltola T , Tuominen E , Tuominiemi J , Tuovinen E , Wendland L , Tuuva T , Besancon M , Couderc F , Dejardin M , Denegri D , Fabbro B , Faure JL , Ferri F , Ganjour S , Givernaud A , Gras P , de Monchenault GH , Jarry P , Locci E , Malcles J , Nayak A , Rander J , Rosowsky A , Titov M , Baffioni S , Beaudette F , Busson P , Charlot C , Daci N , Dahms T , Dalchenko M , Dobrzynski L , Florent A , de Cassagnac RG , Haguenauer M , Mine P , Mironov C , Naranjo IN , Nguyen M , Ochando C , Paganini P , Sabes D , Salerno R , Sirois Y , Veelken C , Yilmaz Y , Zabi A , Agram JL , Andrea J , Bloch D , Brom JM , Chabert EC , Collard C , Conte E , Drouhin F , Fontaine JC , Gele D , Goerlach U , Goetzmann C , Juillot P , Le Bihan AC , Van Hove P , Gadrat S , Beauceron S , Beaupere N , Boudoul G , Brochet S , Chasserat J , Chierici R , Contardo D , Depasse P , El Mamouni H , Fan J , Fay J , Gascon S , Gouzevitch M , Ille B , Kurca T , Lethuillier M , Mirabito L , Perries S , Alvarez JDR , Sgandurra L , Sordini V , Donckt MV , Verdier P , Viret S , Xiao H , Tsamalaidze Z , Autermann C , Beranek S , Bontenackels M , Calpas B , Edelhoff M , Feld L , Hindrichs O , Klein K , Ostapchuk A , Perieanu A , Raupach F , Sammet J , Schael S , Spreng

Titolo volume/Rivista

PHYSICAL REVIEW. C, NUCLEAR PHYSICS

Anno di pubblicazione

2014

ISSN

0556-2813

ISBN

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Numero di citazioni Wos

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Settori ERC

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Codici ASJC

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