Di-Hadron Correlations with Identified Leading Hadrons in 200 GeV Au+Au and d+Au Collisions at STAR

preprint2015arXivOpen access
STAR CollaborationL. AdamczykJ. K. AdkinsG. AgakishievM. M. AggarwalZ. AhammedI. AlekseevJ. AlfordA. AparinD. ArkhipkinE. C. AschenauerG. S. AverichevA. BanerjeeR. BellwiedA. BhasinA. K. BhatiP. BhattaraiJ. BielcikJ. BielcikovaL. C. BlandI. G. BordyuzhinJ. BouchetA. V. BrandinI. BunzarovT. P. BurtonJ. ButterworthH. CainesM. Calderón de la Barca SánchezJ. M. CampbellD. CebraM. C. CervantesI. ChakaberiaP. ChaloupkaZ. ChangS. ChattopadhyayJ. H. ChenX. ChenJ. ChengM. CherneyW. ChristieG. ContinH. J. CrawfordS. DasL. C. De SilvaR. R. DebbeT. G. DedovichJ. DengA. A. DerevschikovB. Di RuzzaL. DidenkoC. DilksX. DongJ. L. DrachenbergJ. E. DraperC. M. DuL. E. DunkelbergerJ. C. DunlopL. G. EfimovJ. EngelageG. EppleyR. EshaO. EvdokimovO. EyserR. FatemiS. FazioP. FedericJ. FedorisinZ. FengP. FilipY. FisyakC. E. FloresL. FulekC. A. GagliardiD. GarandF. GeurtsA. GibsonM. GirardL. GreinerD. GrosnickD. S. GunarathneY. GuoA. GuptaS. GuptaW. GurynA. HamadA. HamedR. HaqueJ. W. HarrisL. HeS. HeppelmannA. HirschG. W. HoffmannD. J. HofmanS. HorvatB. HuangX. HuangH. Z. HuangP. HuckT. J. HumanicG. IgoW. W. JacobsH. JangK. JiangE. G. JuddS. KabanaD. KalinkinK. KangK. KauderH. W. KeD. KeaneA. KechechyanZ. H. KhanD. P. KikolaI. KiselA. KisielL. KochendaD. D. KoetkeT. KolleggerL. K. KosarzewskiA. F. KraishanP. KravtsovK. KruegerI. KulakovL. KumarR. A. KyciaM. A. C. LamontJ. M. LandgrafK. D. LandryJ. LauretA. LebedevR. LednickyJ. H. LeeW. LiZ. M. LiX. LiY. LiC. LiM. A. LisaF. LiuT. LjubicicW. J. LlopeM. LomnitzR. S. LongacreX. LuoY. G. MaR. MaG. L. MaL. MaN. MagdyR. MajkaA. ManionS. MargetisC. MarkertH. MasuiH. S. MatisD. McDonaldK. MeehanN. G. MinaevS. MioduszewskiD. MishraB. MohantyM. M. MondalD. MorozovM. K. MustafaB. K. NandiMd. NasimT. K. NayakG. NigmatkulovL. V. NogachS. Y. NohJ. NovakS. B. NurushevG. OdyniecA. OgawaK. OhV. OkorokovD. Olvitt Jr.B. S. PageR. PakY. X. PanY. PanditY. PanebratsevB. PawlikH. PeiC. PerkinsA. PetersonP. PileM. PlaninicJ. PlutaN. PoljakK. PoniatowskaJ. PorterM. PosikA. M. PoskanzerN. K. PruthiJ. PutschkeH. QiuA. QuinteroS. RamachandranR. RaniwalaS. RaniwalaR. L. RayH. G. RitterJ. B. RobertsO. V. RogachevskiyJ. L. RomeroA. RoyL. RuanJ. RusnakO. RusnakovaN. R. SahooP. K. SahuI. SakrejdaS. SalurJ. SandweissA. SarkarJ. SchambachR. P. ScharenbergA. M. SchmahW. B. SchmidkeN. SchmitzJ. SegerP. SeybothN. ShahE. ShahalievP. V. ShanmuganathanM. ShaoM. K. SharmaB. SharmaW. Q. ShenS. S. ShiQ. Y. ShouE. P. SichtermannR. SikoraM. SimkoM. J. SkobyN. SmirnovD. SmirnovL. SongP. SorensenH. M. SpinkaB. SrivastavaT. D. S. StanislausM. StepanovR. StockM. StrikhanovB. StringfellowM. SumberaB. SummaX. SunX. M. SunY. SunZ. SunB. SurrowN. SviridaM. A. SzelezniakZ. TangA. H. TangT. TarnowskyA. N. TawfikJ. H. ThomasA. R. TimminsD. TlustyM. TokarevS. TrentalangeR. E. TribbleP. TribedyS. K. TripathyB. A. TrzeciakO. D. TsaiT. UllrichD. G. UnderwoodI. UpsalG. Van BurenG. van NieuwenhuizenM. VandenbrouckeR. VarmaA. N. VasilievR. VertesiF. VidebækY. P. ViyogiS. VokalS. A. VoloshinA. VossenG. WangH. WangJ. S. WangY. WangF. WangG. WebbJ. C. WebbL. WenG. D. WestfallH. WiemanS. W. WissinkR. WittY. F. WuZ. G. XiaoW. XieK. XinQ. H. XuN. XuH. XuZ. XuY. F. XuQ. YangY. YangC. YangS. YangZ. YeP. YepesL. YiK. YipI. -K. YooN. YuH. ZbroszczykW. ZhaJ. B. ZhangJ. ZhangX. P. ZhangZ. ZhangY. ZhangS. ZhangJ. ZhaoC. ZhongL. ZhouX. ZhuY. ZoulkarneevaM. Zyzak

Abstract

The STAR collaboration presents for the first time two-dimensional di-hadron correlations with identified leading hadrons in 200 GeV central Au+Au and minimum-bias d+Au collisions to explore hadronization mechanisms in the quark gluon plasma. The enhancement of the jet-like yield for leading pions in Au+Au data with respect to the d+Au reference and the absence of such an enhancement for leading non-pions (protons and kaons) are discussed within the context of a quark recombination scenario. The correlated yield at large angles, specifically in the \emph{ridge region}, is found to be significantly higher for leading non-pions than pions. The consistencies of the constituent quark scaling, azimuthal harmonic model and a mini-jet modification model description of the data are tested, providing further constraints on hadronization.

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