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Pion, kaon, proton and anti-proton transverse momentum distributions from $p + p$ and $d +$ Au collisions at $\sqrt{s_{NN}} = 200$GeV

The STAR collaboration
Phys.Lett.B 616 (2005) 8-16, 2005.

Abstract (data abstract)
'Identified mid-rapidity particle spectra of $\pi^{\pm}$, $K^{\pm}$, and p($\bar{p}$) from 200 GeV p+p and d+Au collisions are reported. A time-of-flight detector based on multi-gap resistive plate chamber technology is used for particle identification. The particle-species dependence of the Cronin effect is observed to be significantly smaller than that at lower energies. The ratio of the nuclear modification factor ($R_{dAu}$) between protons (p+$\bar{p}$) and charged hadrons (h) in the transverse momentum range 1.2 $<$ $p_{T}$ $<$ 3.0 GeV/c is measured to be 1.19$\pm$0.05(stat)$\pm$0.03(syst) in minimum-bias collisions and shows little centrality dependence. The yield ratio of (p+$\bar{p}$)/h in minimum-bias d+Au collisions is found to be a factor of 2 lower than that in Au+Au collisions, indicating that the Cronin effect alone is not enough to account for the relative baryon enhangement observed in heavy ion collisions at RHIC.'

  • Table 2a: Invariant yield of $\pi^{+}$ and $\pi^{-}$

    Data from Figure 2

    10.17182/hepdata.98859.v1/t1

    The invariant yields of $\pi^{\pm}$, $K^{\pm}$, p and their anti-particles as a function of $p_{T}$ from d+Au and NSD p+p...

  • Table 2b: Invariant yield of $K^{+}$ and $K^{-}$

    Data from Figure 2

    10.17182/hepdata.98859.v1/t2

    The invariant yields of $\pi^{\pm}$, $K^{\pm}$, p and their anti-particles as a function of $p_{T}$ from d+Au and NSD p+p...

  • Table 2c: Invariant yield of p and $\bar{p}$

    Data from Figure 2

    10.17182/hepdata.98859.v1/t3

    The invariant yields of $\pi^{\pm}$, $K^{\pm}$, p and their anti-particles as a function of $p_{T}$ from d+Au and NSD p+p...

  • Table 3: identified particle Rdu

    Data from Figure 3

    10.17182/hepdata.98859.v1/t4

    The identified particle $R_{dAu}$ for minimum-bias and top 20 $\%$ d+Au collisions. Errors are statistical.

  • Table 4:(p + $\bar{p}$)/h ratio in minbias dAu,pp collisions

    Data from Figure 4

    10.17182/hepdata.98859.v1/t5

    Minimum-bias ratios of protons (p+$\bar{p}$) over inclusive charged hadrons (h) at -0.5 $<$ $\eta$ 0.0 from $\sqrt{s} = 200 GeV$...

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