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Pseudorapidity asymmetry and centrality dependence of charged hadron spectra in d + Au collisions at S(NN)**(1/2) = 200-GeV

The STAR collaboration
Phys.Rev.C 70 (2004) 064907, 2004.

Abstract
The pseudorapidity asymmetry and centrality dependence of charged hadron spectra in d+Au collisions at $\sqrt{s_{NN}}=200$ GeV are presented. The charged particle density at mid-rapidity, its pseudorapidity asymmetry and centrality dependence are reasonably reproduced by a Multi-Phase Transport model, by HIJING, and by the latest calculations in a saturation model. Ratios of transverse momentum spectra between backward and forward pseudorapidity are above unity for \pT below 5 GeV/$c$. The ratio of central to peripheral spectra in d+Au collisions shows enhancement at 2 $<$ \pT $<$ 6 GeV/$c$, with a larger effect at backward rapidity than forward rapidity. Our measurements are in qualitative agreement with gluon saturation and in contrast to calculations based on incoherent multiple partonic scatterings.

  • Table 1

    Data from Figure 1

    10.17182/hepdata.102944.v1/t1

    The p$_T$ spectra of charged hadrons for various centrality classes.

  • Table 2

    Data from Figure 2

    10.17182/hepdata.102944.v1/t2

    The pseudorapidity dependence of charged particle densities for various centrality classes.

  • Table 3

    Data from Figure 3

    10.17182/hepdata.102944.v1/t3

    The ratio of charged hadron spectra in the backward rapidity to forward rapidity region for minimum bias and ZDC-d neutron-tagged...

  • Table 4

    Data from Figure 4

    10.17182/hepdata.102944.v1/t4

    The centrality dependence of the ratio of charged hadron spectra in backward rapidity to forward rapidity

  • Table 5

    Data from Figure 5

    10.17182/hepdata.102944.v1/t5

    The ratio of central (0-20%) to peripheral (40-100%) spectra in d+Au collisions for various pseudorapidity regions

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