Physical Review C
This paper reports results for directed flow v1 and elliptic flow v2 of charged particles in Cu + Cu collisions at √ˢᶰᶰ = 22.4 GeV at the Relativistic Heavy Ion Collider. The measurements are for the 0-60% most central collisions, using charged particles observed in the STAR detector. Our measurements extend to 22.4-GeV Cu + Cu collisions the prior observation that v1 is independent of the system size at 62.4 and 200 GeV and also extend the scaling of v1 with η/ybeam to this system. The measured v2pT in Cu + Cu collisions is similar for root √ˢᶰᶰ throughout the range 22.4 to 200 GeV. We also report a comparison with results from transport model (ultrarelativistic quantum molecular dynamics and multiphase transport model) calculations. The model results do not agree quantitatively with the measured v1(η), v2pT, and v2(η).
Original Publication Citation
Agakishiev, G., Aggarwal, M. M., Ahammed, Z., Alakhverdyants, A. V., Alekseev, I., Alford, J., . . . Zhu, X. (2012). Directed and elliptic flow of charged particles in Cu + Cu collisions at √ˢᶰᶰ=22.4 GeV. Physical Review C, 85(1), 014901. doi:10.1103/PhysRevC.85.014901
Agakishiev, G.; Aggarwal, M. M.; Bueltmann, S.; Koralt, I.; Zhu, X.; and STAR Collaboration, "Directed and Elliptic Flow of Charged Particles in Cu + Cu Collisions at √ˢᶰᶰ =22.4 GeV" (2012). Physics Faculty Publications. 178.