Abstract
Azimuthal correlations of charged hadrons with transverse momenta above 2 GeV/c are measured relative to ≥ GeV/c trigger particle in p+p and Au+Au at \(\sqrt {s_{NN} } = 200\) GeV in STAR. The correlations exhibit small relative azimuthal angle correlations characteristic of jets. The p+p and peripheral Au+Au data exhibit a peak on the opposite side of the jet indicating the presence of hard scattering in the form of di-jets. The away-side jet disappears for the most central Au+Au collisions, suggesting jet quenching in a dense medium.
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Harris, J.W., the STAR Collaboration. High transverse momentum correlations in STAR. Acta Phys. Hung. A 21, 229–235 (2004). https://doi.org/10.1556/APH.21.2004.2-4.20
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DOI: https://doi.org/10.1556/APH.21.2004.2-4.20