6533b852fe1ef96bd12aaa96

RESEARCH PRODUCT

Deviation from quark number scaling of the anisotropy parameterv2of pions, kaons, and protons inAu+Aucollisions atsNN=200GeV

J. P. WoodAlexander MilovI. NakagawaR. LuechtenborgT. EngelmoreBeomkyu KimWei XieO. DrapierFrank EllinghausE. R. KinneyJongmin LeeD. P. MorrisonS. CampbellTatsuya ChujoK. N. BarishA. TaketaniD. S. JumperH. PeiT. DahmsH. A. GustafssonM. I. NagyP. TarjánD. WatanabeM. D. MalikE. VznuzdaevS. DairakuS. N. WhiteC. ZhangJen-chieh PengP. RužičkaA. DeshpandeS. SanoS. SanoInkyu ParkXiong WangDong Jo KimM. OuchidaSung Keun ParkM. ViriusViktor RiabovN. MeansK. B. LeeN. N. AjitanandS. V. AfanasievCharles MaguireC. SilvestreM. L. BrooksX. HeC. H. ChenA. VeichtMaya Hachiya ShimomuraJohannes Peter WesselsO. DietzschY. AramakiE. T. AtomssaB. AzmounY. J. MaoA. KrálTakahiro NakamuraSenta GreeneA. GlennI. RavinovichV. PeresedovH. ValleA. T. BasyeE. KistenevJ. KosterI. TserruyaJ. H. KangM. WysockiJ. S. HaggertyMasamichi IshiharaY. WatanabeSusumu OdaM. BaiDipanwita DuttaD. RoachW. A. ZajcAlexei KhanzadeevYu. EfremenkoV. SinghK. A. DreesI. YounusY. J. KwonK. M. KijimaC. L. WoodyH. MasuiA. A. BickleyV. BaublisA. DenisovV. CiancioloA. BerdnikovS. TarafdarJulia VelkovskaM. RosatiSergey FokinE. StenlundA. DurumY. I. MakdisiZhiying YouR. BennettXingguo LiB. KomkovEva HaslumB. LenziM. KawashimaB. FademE. O'brienM. KurosawaC. M. CamachoPrashant ShuklaS. F. PateD. KawallB. LoveK. YamauraH. ThemannMinghui LiuR. A. SoltzM. Grosse PerdekampM. E. ConnorsA. A. VinogradovY. TanakaNorio SaitoE. MannelM. FingerS. P. SorensenM. A. L. LeiteH. Al-batainehY. S. LaiI. V. SourikovaM. HeffnerKenneth Francis ReadKenneth Francis ReadT. IchiharaJiangyong JiaJiangyong JiaY. GotoO. ChvalaM. OkaHongfang LiuHongfang LiuM. J. TannenbaumT. L. ThomasSeong H. KimY. IkedaA. G. LitvinenkoD. E. FieldsJ. NewbyB. V. JacakEunja KimD. KotchetkovK. S. LeeA. DionA. V. KazantsevJ. G. LajoieK. DasT. KempelDong-hun KimK. TanidaV. PapavassiliouGerd Joachim KundeE. P. HartouniA. KozlovI. SheinH. ToriiRyugo S. HayanoR. BelmontR. SetoJ. S. KapustinskyL. BaksayI. J. ChoiA. KravitzM. MccumberPeter ChristiansenV. BabintsevT. V. MoukhanovaA. EnokizonoM. GoninC. PinkenburgY. RiabovL. TomášekD. HornbackV. S. PantuevP. LiebingI. DanchevD. WinterG. S. KyleD. Yu PeressounkoP. MikešP. MikešKenta ShigakiK. S. JooMarisilvia DonadelliV. BumazhnovJames AlexanderK. SedgwickR. TanabeRushan HanG. RocheJ. JinA. SukhanovK. KuritaH. PereiraM. NguyenA. TaranenkoE. M. TakaguiE. J. DesmondJ. HanksR. AverbeckByung-sik HongM. TogawaJ. HamblenE. Vazquez-zambranoA. Yu. SemenovS. SawadaA. BazilevskyA. S. NyaninKazushi MikiY. MorinoAlice MignereyRachid NouicerJ. YingA. FranzM. ProisslBrajesh K. SinghH. QuJ. ParkPhilippe RosnetA. RakotozafindrabeAlexandre LebedevT. C. AwesC. BaumannKyoichiro OzawaT. LiškaJ. S. BokHideki HamagakiK. AokiG. DavidY. TsuchimotoS. KametaniM. NaglisC. L. SilvaK. OkadaR. PakS. EsumiB. SahlmuellerTakao SakaguchiTadaaki IsobeK. I. HahnD. M. LeeD. SharmaH. En'yoR. IchimiyaM. J. LeitchI. E. YushmanovA. D. FrawleyM. SlunečkaP. L. McgaugheyK. KirilukEun-hee KimC. P. SinghR. VértesiR. VértesiVladimir SamsonovMartin PurschkeK. WatanabeB. M. JohnsonS. HuangS. YokkaichiK. ShojiW. HolzmannA. IsupovT. HoraguchiP. W. StankusJ. SziklaiA. MorrealeK. KaratsuZ. FraenkelR. K. ChoudhuryBrian ColeR. S. TowellJ. E. FrantzJ. MurataI. GarishviliF. WeiKyeongpil LeeJ. IdeTamas Ferenc CsorgoC. Y. ChiJ. L. NagleAnne Marie SicklesG. R. YoungK. S. SimP. ChungR. YangA. DattaK. ImaiTaku GunjiH. GongJ. SeeleF. KajiharaY. OnukiJan RakR. LaceyR. Granier De CassagnacA. AdareS. ButsykS. ZhouS. D. RolnickAjit Kumar MohantyT. A. ShibataT. SatoD. IsenhowerA. ToiaF. MatathiasKensuke HommaE. RichardsonP. ConstantinB. BassalleckM. KonnoR. P. PisaniJ. T. MitchellY. FukaoR. SeidlVladislav MankoT. HesterS. BelikovN. A. SparksN. GrauC. ValeC. ValeChristine Angela AidalaY. NakamiyaD. LynchMotoi InabaR. M. WrightG. BaksayY. J. KimA. KissHenner BueschingSteve EdwardsMarcus HohlmannL. A. Linden LevyK. SakashitaA. K. PurwarK. FujiwaraY. L. YamaguchiE. LeitnerH. W. Van HeckeS. BatheAgneta OskarssonY. BerdnikovY. AkibaM. MishraS. NagamiyaVaclav VrbaKlaus Johannes ReygersRui WeiJason KaminM. CsanadS. P. StollS. S.e. RosendahlG. BunceD. JouanN. KamiharaA. DreesM. ChiuC. A. OgilvieT. K. HemmickJ. M. DurhamYasuo MiakeL. KochendaM. IssahZvi Hirsh CitronK. NakanoW. E. SondheimD. IvanischevK. BoyleP. A. RukoyatkinTakahiro FusayasuAlexander MalakhovD. SilvermyrL. S. ZolinW. J. ParkChristopher RosenA. YanovichB. MeredithJohn HillToru SugitateFrançois Fleuret

subject

QuarkPhysicsNuclear and High Energy PhysicsParticle physics010308 nuclear & particles physicsNuclear TheoryHadronKinetic energy01 natural sciencesNuclear physicsPion0103 physical sciencesHigh Energy Physics::ExperimentImpact parameterNuclear Experiment010306 general physicsAnisotropyRelativistic Heavy Ion ColliderScaling

description

Measurements of the anisotropy parameter v(2) of identified hadrons (pions, kaons, and protons) as a function of centrality, transverse momentum p(T), and transverse kinetic energy KET at midrapidity (vertical bar eta vertical bar < 0.35) in Au + Au collisions at root s(N N) = 200 GeV are presented. Pions and protons are identified up to p(T) = 6 GeV/c, and kaons up to p(T) = 4 GeV/c, by combining information from time-of-flight and aerogel Cerenkov detectors in the PHENIX Experiment. The scaling of v(2) with the number of valence quarks (n(q)) has been studied in different centrality bins as a function of transverse momentum and transverse kinetic energy. A deviation from previously observed quark-number scaling is observed at large values of KET/n(q) in noncentral Au + Au collisions (20-60%), but this scaling remains valid in central collisions (0-10%).

yearjournalcountryeditionlanguage
2012-06-25Physical Review C
https://doi.org/10.1103/physrevc.85.064914