Physics with Identified Particles at STAR
Abstract
New physics results with identified particles at STAR are presented. Measurements at low pT address bulk properties of the collision, while those at high pT address jet energy loss in the bulk matter produced. Between these extremes, measurements at intermediate pT address the interplay between jets and the bulk. We highlight: measurements of v2 fluctuations as a new, sensitive probe of the initial conditions and the equation of state; correlations involving multi-strange particles, along with ratios of identified particles to test coalescence as a mechanism of particle production at intermediate pT; three particle azimuthal correlation to search for conical emission; and the energy and particle-type dependence of hadron production at high pT to study quark and gluon jet energy loss.
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