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Jet Structure of Baryon Excess in Au+Au Collisions at sqrt(s_NN) = 200 GeV

PHENIX Collaboration·S. S. Adler
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Abstract

Two particle correlations between identified meson and baryon trigger particles with 2.5 < p_T < 4.0 GeV/c and lower p_T charged hadrons have been measured at midrapidity by the PHENIX experiment at RHIC in p+p, d+Au and Au+Au collisions at sqrt(s_NN) = 200 GeV. The probability of finding a hadron near in azimuthal angle to the trigger particle is almost identical for leading mesons and baryons for non-central Au+Au. The yield for both trigger baryons and mesons is significantly higher in Au+Au than in p+p and d+Au, except for trigger baryons in central collisions. The baryon excess is likely to arise predominantly from hard scattering processes.

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PHENIX Collaboration, S. S. Adler. 2004-08-07. Jet Structure of Baryon Excess in Au+Au Collisions at sqrt(s_NN) = 200 GeV. https://doi.org/10.1103/physrevc.71.051902

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