Speaker
Description
Small system (p+p, p+A, d/He+A) collisions at RHIC and LHC exhibit interesting
azimuthal anisotropies, with explanations varying from geometry coupled to final
state interactions to glasma diagrams to color recombination. The PHENIX
experiment has extended many of these observables to even lower energies with the d+Au beam energy scan at 19.6, 39.0, 62.4, and 200 GeV.
We present results on $v_2$ anisotropies as a function of transverse momentum and pseudorapidity for various centrality selections. We also study multi-particle cumulants ($v_2\{2\}, v_2\{4\}, v_2\{6\})$ that provide additional information about flow, non-flow and event-by-event fluctuations. We compare the results with calculations within the framework of viscous hydrodynamics and parton scattering models (with and without final state interactions). The results provide key evidence for collectivity from the lowest RHIC energies to the highest LHC energies.
| Content type | Experiment |
|---|---|
| Collaboration | PHENIX |
| Centralised submission by Collaboration | Presenter name already specified |
