Centrality and Transverse Momentum Dependence of Elliptic Flow of Multistrange Hadrons and φ Meson in Au+Au Collisions at sNN =200 GeV
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Journal ArticleDate
2016-02-10Author
Adamczyk, LAdkins, 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
Subject
STAR CollaborationPermanent link to this record
http://hdl.handle.net/20.500.12613/5739
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10.1103/PhysRevLett.116.062301Abstract
© 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.Citation to related work
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http://dx.doi.org/10.34944/dspace/5721