Observation of modified hadronization in relativistic Au+Au collisions: a promising signature for deconfined quark-gluon matter
Abstract
Measurements of identified particles from Au+Au collisions at s_NN=200 GeV are reviewed. Emphasis is placed on nuclear modification, baryon-to-meson ratios, and elliptic flow at intermediate transverse momentum (1.5 < pT < 5 GeV/c). Possible connections between (1) these measurements, (2) the running coupling for static quark anti-quark pairs at finite temperature, and (3) the creation of a deconfined quark-gluon phase are presented. Modifications to hadronization in Au+Au collisions are proposed as a likely signature for the creation of deconfined colored matter.
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