Speaker
Description
Collective behavior in small collision systems has been explored in detail
by the PHENIX experiment using the unique RHIC capability to collide different
species at a variety of center-of-mass energies. Measurement of azimuthal
anisotropies, v2(pt), and long-range two-particle correlations are studies in
p+Al, p+Au, d+Au, and 3He+Au at 200 GeV with inclusive charged particles
and identified pions and protons at mid-rapidity. The triangular anisotropy,
v3(pt), is also measured in central d+Au, and 3He+Au collisions. The 2016 be
am energy scan of d+Au collisions at 19.6, 39.0, 62.4, and 200 GeV provided
a high-statistics data set that enabled multiparticle cumulant analyses of
v2{2}, v2{4}, v2{6} as a function of event multiplicity, as well as the study
of v2 of inclusive hadrons as a function of pseudorapidity over 6 units of
eta. These measurements taken together provide a wealth of information
sensitive to initial vs final state effects, nonflow and flow correlations, longitudinal
and transverse partonic and hadronic dynamics. Detailed model comparisons
with all observables will be discussed.
