Measurement of the elliptic anisotropy of charged particles produced in PbPb collisions at root s(NN)=2.76 TeV

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Abstract

The anisotropy of the azimuthal distributions of charged particles produced in root s(NN) = 2.76 TeV PbPb collisions is studied with the CMS experiment at the LHC. The elliptic anisotropy parameter, upsilon(2), defined as the second coefficient in a Fourier expansion of the particle invariant yields, is extracted using the event-plane method, two- and four-particle cumulants, and Lee-Yang zeros. The anisotropy is presented as a function of transverse momentum (p(T)), pseudorapidity (eta) over a broad kinematic range, 0.3 < p(T) < 20 GeV/c, vertical bar eta vertical bar < 2.4, and in 12 classes of collision centrality from 0 to 80%. The results are compared to those obtained at lower center-of-mass energies, and various scaling behaviors are examined. When scaled by the geometric eccentricity of the collision zone, the elliptic anisotropy is found to obey a universal scaling with the transverse particle density for different collision systems and center-of-mass energies. DOI: 10.1103/PhysRevC.87.014902

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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 , Hammer J , Hormann N , Hrubec J , Jeitler M , Kiesenhofer W , Krammer M , Liko D , Mikulec I , Pernicka M , Rahbaran B , Rohringer C , Rohringer H , Schofbeck R , Strauss J , Taurok A , Teischinger F , Wagner P , Waltenberger W , Walzel G , Widl E , Wulz CE , Mossolov V , Shumeiko N , Gonzalez JS , Bansal S , Cerny K , Cornelis T , De Wolf EA , Janssen X , Luyckx S , Maes T , Mucibello L , Ochesanu S , Roland B , Rougny R , Selvaggi M , Van Haevermaet H , Van Mechelen P , Van Remortel N , Van Spilbeeck A , Blekman F , Blyweert S , D'Hondt J , Suarez RG , Kalogeropoulos A , Maes M , Olbrechts A , Van Doninck W , Van Mulders P , Van Onsem GP , Villella I , Charaf O , Clerbaux B , De Lentdecker G , Dero V , Gay APR , Hreus T , Leonard A , Marage PE , Reis T , Thomas L , Vander Velde C , Vanlaer P , Adler V , Beernaert K , Cimmino A , Costantini S , Garcia G , Grunewald M , Klein B , Lellouch J , Marinov A , Mccartin J , Rios AAO , Ryckbosch D , Strobbe N , Thyssen F , Tytgat M , Vanelderen L , Verwilligen P , Walsh S , Yazgan E , Zaganidis N , Basegmez S , Bruno G , Ceard L , Delaere C , du Pree T , Favart D , Forthomme L , Giammanco A , Hollar J , Lemaitre V , Liao J , Militaru O , Nuttens C , Pagano D , Pin A , Piotrzkowski K , Schul N , Beliy N , Caebergs T , Daubie E , Hammad GH , Alves GA , Martins MC , Damiao DD , Martins T , Pol ME , Souza MHG , Alda WL , Carvalho W , Custodio A , Da Costa EM , Martins CD , De Souza SF , Figueiredo DM , Mundim L , Nogima H , Oguri V , Da Silva WLP , Santoro A , Do Amaral SMS , Jorge LS , Sznajder A , Anjos TS , Bernardes CA , Dias FA , Tomei TRFP , Gregores EM , Lagana C , Marinho F , Mercadante PG , Novaes SF , Padula SS , Genchev V , Iaydjiev P , Piperov S , Rodozov M , Stoykova S , Sultanov G , Tcholakov V , Trayanov R , Vutova M , Dimitrov A , Hadjiiska R , Kozhuharov V , Litov L , Pavlov B , Petkov P , Bian JG , Chen GM , Chen HS , Jiang CH , Liang D , Liang S , Meng X , Tao J , Wang J , Wang J , Wang X , Wang Z , Xiao H , Xu M , Zang J , Zhang Z , Asawatangtrakuldee C , Ban Y , Guo S , Guo Y , Li W , Liu S , Mao Y , Qian SJ , Teng H , Wang S , Zhu B , Zou W , Avila C , Moreno BG , Oliveros AFO , Sanabria JC , Godinovic N , Lelas D , Plestina R , Polic D , Puljak I , Antunovic Z , Dzelalija M , Kovac M , Brigljevic V , Duric S , Kadija K , Luetic J , Morovic S , Attikis A , Galanti M , Mavromanolakis G , Mousa J , Nicolaou C , Ptochos F , Razis PA , Finger M , Finger M , Assran Y , Elgammal S , Kamel AE , Khalil S , Mahmoud MA , Radi A , Kadastik M , Muntel M , Raidal M , Rebane L , Tiko A , Azzolini V , Eerola P , Fedi G , Voutilainen M , Harkonen J , Heikkinen A , 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 , Ungaro D , Wendland L , Banzuzi K , Korpela A , Tuuva T , Besancon M , Choudhury S , 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 , Millischer L , Nayak A , Rander J , Rosowsky A , Shreyber I , Titov M , Baffioni S , Beaudette F , Benhabib L , Bianchini L , Bluj M , Broutin C , Busson P , Charlot C , Daci N , Dahms T , Dobrzynski L , de Cassagnac RG , Haguenauer M , Mine P , Mironov C , Ochando C , Paganini P , Sabes D , Salerno R , Sirois Y , Veelken C , Zabi A , Agram JL , Andrea J , Bloch D , Bodin D , Brom JM , Cardaci M , Chabert EC , Collard C , Conte E , Drouhin F , Ferro C , Fontaine JC , Gele D , Goerlach U , Juillot P , Karim M , Le Bihan AC , Van Hove P , Fassi F , Mercier D , Beauceron S , Beaupere N , Bondu O , Boudoul G , Brun H , Chasserat J , Chierici R , Contardo D , Depasse P , El Mamouni H , Fay J , Gascon S , Gouzevitch M , Ille B , Kurca T , Lethuillier M , Mirabito L , Perries S , Sordini V , Tosi S , Tschudi Y , Verdier P , Viret S , Tsamalaidze Z , Anagnostou G , Beranek S , Edelhoff M , Feld L , Heracleous N , Hindrichs O , Jussen R , Klein K , Merz J , Ostapchuk A , Perieanu A , Raupach F , Sammet J , Schael S , Sprenger D , Weber H , Wittmer B , Zhukov V , Ata M , Caudron J , Dietz-Laursonn E , Duchardt D , Erdmann M , Guth A , Hebbeker T , H

Titolo volume/Rivista

PHYSICAL REVIEW. C, NUCLEAR PHYSICS

Anno di pubblicazione

2013

ISSN

0556-2813

ISBN

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Numero di citazioni Wos

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Settori ERC

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