Particle Ratios on the Near and Away-Side of Jets at RHIC
Abstract
We measure the relative abundances of strange mesons, baryons, and anti-baryons correlated with high-pT trigger particles in 197Au + 197Au collisions at sNN = 200 GeV. Particle yields and ratios are extracted on the near-side and away-side of the trigger particle. The associate-particle ratios are studied as a function of the angle relative to the trigger particle azimuth φ. Such studies should help elucidate the origin of the previously observed correlations and their strong modifications in Au+Au collisions relative to p+p collisions. We discuss how these measurements might be related to several scenarios for interactions of fast partons with the medium in Au+Au collision.
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