@article{a8e57b35217a4582bacc23dcbd5acb5a,
title = "Centrality dependence of identified particle elliptic flow in relativistic heavy ion collisions at sNN =7.7-62.4 GeV",
abstract = "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.",
author = "{STAR Collaboration} and L. Adamczyk and Adkins, {J. K.} and G. Agakishiev and Aggarwal, {M. M.} and Z. Ahammed and I. Alekseev and A. Aparin and D. Arkhipkin and Aschenauer, {E. C.} and Averichev, {G. S.} and X. Bai and V. Bairathi and A. Banerjee and R. Bellwied and A. Bhasin and Bhati, {A. K.} and P. Bhattarai and J. Bielcik and J. Bielcikova and Bland, {L. C.} and Bordyuzhin, {I. G.} and J. Bouchet and D. Brandenburg and Brandin, {A. V.} and I. Bunzarov and J. Butterworth and H. Caines and {Calder{\'o}n De La Barca S{\'a}nchez}, M. and Campbell, {J. M.} and D. Cebra and Cervantes, {M. C.} and I. Chakaberia and P. Chaloupka and Z. Chang and S. Chattopadhyay and X. Chen and Chen, {J. H.} and J. Cheng and M. Cherney and O. Chisman and W. Christie and G. Contin and Crawford, {H. J.} and S. Das and {De Silva}, {L. C.} and Debbe, {R. R.} and J. Deng and Derevschikov, {A. A.} and {Di Ruzza}, B. and Seger, {Janet E.}",
year = "2016",
month = jan,
day = "19",
doi = "10.1103/PhysRevC.93.014907",
language = "English (US)",
volume = "93",
journal = "Physical Review C",
issn = "2469-9985",
publisher = "American Physical Society",
number = "1",
}