Centrality dependence of charged-particle pseudorapidlty distributions from d + Au collisions at √SNN = 200 GeV

I. Arsene, I. G. Bearden, D. Beavis, C. Besliu, B. Budick, H. Bøggild, C. Chasman, C. H. Christensen, P. Christiansen, J. Cibor, R. Debbe, E. Enger, J. J. Gaardhøje, M. Germinario, K. Hagel, H. Ito, A. Jipa, J. I. Jørdre, F. Jundt, C. E. JørgensenR. Karabowicz, E. J. Kim, T. Kozik, T. M. Larsen, J. H. Lee, Y. K. Lee, S. Lindal, R. Lystad, G. Løvhøiden, Z. Majka, A. Makeev, M. Mikelsen, M. Murray, J. Natowitz, B. Neumann, B. S. Nielsen, D. Ouerdane, R. Płaneta, F. Rami, C. Ristea, O. Rostea, D. Röhrich, B. H. Samset, D. Sandberg, S. J. Sanders, R. A. Sheetz, P. Staszel, T. S. Tveter, F. Videbæk, R. Wada, Z. Yin, I. S. Zgura

    Research output: Contribution to journalArticle

    Abstract

    Charged-particle pseudorapidity densities are presented for the d + Au reaction at √SNN = 200 GeV with -4.2 ≤ η ≤ 4.2. The results, from the BRAHMS experiment at BNL Relativistic Heavy-Ion Collider, are shown for minimum-bias events and 0%-30%, 30%-60%, and 60%-80% centrality classes. Models incorporating both soft physics and hard, perturbative QCD-based scattering physics agree well with the experimental results. The data do not support predictions based on strong-coupling, semiclassical QCD. In the deuteron-fragmentation region the central 200 GeV data show behavior similar to full-overlap d + Au results at √SNN = 19.4 GeV.

    Original languageEnglish (US)
    Article number032301
    JournalPhysical Review Letters
    Volume94
    Issue number3
    DOIs
    StatePublished - Jan 28 2005

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

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  • Cite this

    Arsene, I., Bearden, I. G., Beavis, D., Besliu, C., Budick, B., Bøggild, H., Chasman, C., Christensen, C. H., Christiansen, P., Cibor, J., Debbe, R., Enger, E., Gaardhøje, J. J., Germinario, M., Hagel, K., Ito, H., Jipa, A., Jørdre, J. I., Jundt, F., ... Zgura, I. S. (2005). Centrality dependence of charged-particle pseudorapidlty distributions from d + Au collisions at √SNN = 200 GeV. Physical Review Letters, 94(3), [032301]. https://doi.org/10.1103/PhysRevLett.94.032301