Evidence from d + Au measurements for final-state suppression of high-pT hadrons in Au + Au collisions at RHIC

STAR Collaboration

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We report measurements of single-particle inclusive spectra and two-particle azimuthal distributions of charged hadrons at high transverse momentum (high pT) in minimum bias and central d + Au collisions at √SNN = 200 GeV. The inclusive yield is enhanced in d + Au collisions relative to binary-scaled p + p collisions, while the two-particle azimuthal distributions are very similar to those observed in p + p collisions. These results demonstrate that the strong suppression of the inclusive yield and back-to-back correlations at high pT previously observed in central Au + Au collisions are due to final-state interactions with the dense medium generated in such collisions.

Original languageEnglish (US)
Article number072304
Pages (from-to)723041-723046
Number of pages6
JournalPhysical Review Letters
Issue number7
StatePublished - Aug 15 2003

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)


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