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Centrality dependence of identified particle elliptic flow in relativistic heavy ion collisions at sNN =7.7-62.4 GeV

Publication ,  Journal Article
Adamczyk, L; Adkins, JK; Agakishiev, G; Aggarwal, MM; Ahammed, Z; Alekseev, I; Aparin, A; Arkhipkin, D; Aschenauer, EC; Averichev, GS; Bai, X ...
Published in: Physical Review C
January 19, 2016

Elliptic flow (v2) values for identified particles at midrapidity in Au + Au collisions measured by the STAR experiment in the Beam Energy Scan at the Relativistic Heavy Ion Collider at sNN=7.7-62.4 GeV are presented for three centrality classes. The centrality dependence and the data at sNN=14.5 GeV are new. Except at the lowest beam energies, we observe a similar relative v2 baryon-meson splitting for all centrality classes which is in agreement within 15% with the number-of-constituent quark scaling. The larger v2 for most particles relative to antiparticles, already observed for minimum bias collisions, shows a clear centrality dependence, with the largest difference for the most central collisions. Also, the results are compared with a multiphase transport (AMPT) model and fit with a blast wave model.

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Published In

Physical Review C

DOI

EISSN

2469-9993

ISSN

2469-9985

Publication Date

January 19, 2016

Volume

93

Issue

1

Related Subject Headings

  • 5106 Nuclear and plasma physics
 

Citation

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Adamczyk, L., Adkins, J. K., Agakishiev, G., Aggarwal, M. M., Ahammed, Z., Alekseev, I., … Huck, P. (2016). Centrality dependence of identified particle elliptic flow in relativistic heavy ion collisions at sNN =7.7-62.4 GeV. Physical Review C, 93(1). https://doi.org/10.1103/PhysRevC.93.014907
Adamczyk, L., J. K. Adkins, G. Agakishiev, M. M. Aggarwal, Z. Ahammed, I. Alekseev, A. Aparin, et al. “Centrality dependence of identified particle elliptic flow in relativistic heavy ion collisions at sNN =7.7-62.4 GeV.” Physical Review C 93, no. 1 (January 19, 2016). https://doi.org/10.1103/PhysRevC.93.014907.
Adamczyk L, Adkins JK, Agakishiev G, Aggarwal MM, Ahammed Z, Alekseev I, et al. Centrality dependence of identified particle elliptic flow in relativistic heavy ion collisions at sNN =7.7-62.4 GeV. Physical Review C. 2016 Jan 19;93(1).
Adamczyk, L., et al. “Centrality dependence of identified particle elliptic flow in relativistic heavy ion collisions at sNN =7.7-62.4 GeV.” Physical Review C, vol. 93, no. 1, Jan. 2016. Scopus, doi:10.1103/PhysRevC.93.014907.
Adamczyk L, Adkins JK, Agakishiev G, Aggarwal MM, Ahammed Z, Alekseev I, Aparin A, Arkhipkin D, Aschenauer EC, Averichev GS, Bai X, Bairathi V, Banerjee A, Bellwied R, Bhasin A, Bhati AK, Bhattarai P, Bielcik J, Bielcikova J, Bland LC, Bordyuzhin IG, Bouchet J, Brandenburg D, Brandin AV, Bunzarov I, Butterworth J, Caines H, Calderón De La Barca Sánchez M, Campbell JM, Cebra D, Cervantes MC, Chakaberia I, Chaloupka P, Chang Z, Chattopadhyay S, Chen X, Chen JH, Cheng J, Cherney M, Chisman O, 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 A, Gupta S, Guryn W, Hamad A, Hamed A, Haque R, Harris JW, He L, Heppelmann S, Hirsch A, Hoffmann GW, Hofman DJ, Horvat S, Huang HZ, Huang B, Huang X, Huck P. Centrality dependence of identified particle elliptic flow in relativistic heavy ion collisions at sNN =7.7-62.4 GeV. Physical Review C. 2016 Jan 19;93(1).

Published In

Physical Review C

DOI

EISSN

2469-9993

ISSN

2469-9985

Publication Date

January 19, 2016

Volume

93

Issue

1

Related Subject Headings

  • 5106 Nuclear and plasma physics