articlePhysical Review LettersAug 15, 2003LVGREEN OA

Evidence from d + A u Measurements for Final-State Suppression of High- p T Hadrons in A u + A u Collisions at RHIC

University of Birmingham · Goethe University Frankfurt · +43 more institutions

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Abstract

We report measurements of single-particle inclusive spectra and two-particle azimuthal distributions of charged hadrons at high transverse momentum (high ${p}_{T}$) in minimum bias and central $d+\mathrm{A}\mathrm{u}$ collisions at $\sqrt{{s}_{NN}}=200\text{ }\text{ }\mathrm{G}\mathrm{e}\mathrm{V}$. The inclusive yield is enhanced in $d+\mathrm{A}\mathrm{u}$ 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 ${p}_{T}$ previously observed in central $\mathrm{A}\mathrm{u}+\mathrm{A}\mathrm{u}$…

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Authors

363

Topics & keywords

Keywords
  • Physics
  • Hadron
  • Spectral line
  • Particle physics
  • Azimuth
  • Yield (engineering)
  • Binary number
  • Nuclear physics
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