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Centrality and Transverse Momentum Dependence of Elliptic Flow of Multistrange Hadrons and φ Meson in Au+Au Collisions at sNN =200 GeV

  • Author(s): Adamczyk, L
  • Adkins, JK
  • Agakishiev, G
  • Aggarwal, MM
  • Ahammed, Z
  • Alekseev, I
  • Aparin, A
  • Arkhipkin, D
  • Aschenauer, EC
  • Averichev, GS
  • Bairathi, V
  • Banerjee, A
  • Bellwied, R
  • Bhasin, A
  • Bhati, AK
  • Bhattarai, P
  • Bielcik, J
  • Bielcikova, J
  • Bland, LC
  • Bordyuzhin, IG
  • Bouchet, J
  • Brandin, AV
  • Bunzarov, I
  • Butterworth, J
  • Caines, H
  • De La Barca Sánchez, MC
  • Campbell, JM
  • Cebra, D
  • Cervantes, MC
  • Chakaberia, I
  • Chaloupka, P
  • Chang, Z
  • Chattopadhyay, S
  • Chen, JH
  • Chen, X
  • Cheng, J
  • Cherney, M
  • Christie, W
  • Contin, G
  • Crawford, HJ
  • Das, S
  • De Silva, LC
  • Debbe, RR
  • Dedovich, TG
  • Deng, J
  • Derevschikov, AA
  • Di Ruzza, B
  • Didenko, L
  • Dilks, C
  • Dong, X
  • Drachenberg, JL
  • Draper, JE
  • Du, CM
  • Dunkelberger, LE
  • Dunlop, JC
  • Efimov, LG
  • Engelage, J
  • Eppley, G
  • Esha, R
  • Evdokimov, O
  • Eyser, O
  • Fatemi, R
  • Fazio, S
  • Federic, P
  • Fedorisin, J
  • Feng, Z
  • Filip, P
  • Fisyak, Y
  • Flores, CE
  • Fulek, L
  • Gagliardi, CA
  • Garand, D
  • Geurts, F
  • Gibson, A
  • Girard, M
  • Greiner, L
  • Grosnick, D
  • Gunarathne, DS
  • Guo, Y
  • Gupta, S
  • Gupta, A
  • Guryn, W
  • Hamad, A
  • Hamed, A
  • Haque, R
  • Harris, JW
  • He, L
  • Heppelmann, S
  • Heppelmann, S
  • Hirsch, A
  • Hoffmann, GW
  • Hofman, DJ
  • Horvat, S
  • Huang, X
  • Huang, B
  • Huang, HZ
  • Huck, P
  • Humanic, TJ
  • Igo, G
  • Jacobs, WW
  • et al.

Published Web Location

http://journals.aps.org/prl/pdf/10.1103/PhysRevLett.116.062301
No data is associated with this publication.
Abstract

© 2016 American Physical Society. We present high precision measurements of elliptic flow near midrapidity (|y|<1.0) for multistrange hadrons and φ meson as a function of centrality and transverse momentum in Au+Au collisions at center of mass energy sNN=200 GeV. We observe that the transverse momentum dependence of φ and Ω v2 is similar to that of π and p, respectively, which may indicate that the heavier strange quark flows as strongly as the lighter up and down quarks. This observation constitutes a clear piece of evidence for the development of partonic collectivity in heavy-ion collisions at the top RHIC energy. Number of constituent quark scaling is found to hold within statistical uncertainty for both 0%-30% and 30%-80% collision centrality. There is an indication of the breakdown of previously observed mass ordering between φ and proton v2 at low transverse momentum in the 0%-30% centrality range, possibly indicating late hadronic interactions affecting the proton v2.

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