Midrapidity phi production in Au + Au collisions at s N N = 130-GeV

The STAR collaboration
Phys.Rev.C 65 (2002) 041901, 2002.

Abstract (data abstract)
We present the first measurement of midrapidity vector meson $\phi$ production in Au+Au collisions at RHIC ($\sqrt{s_{_{NN}}}$ = 130 GeV) from from the STAR detector. For the 11% highest multiplicity collisions, the slope parameter from an exponential fit to the transverse mass distribution is $T=379\pm50({\rm stat})\pm45({\rm syst})$ MeV, the yield $dN/dy = 5.73\pm0.37({\rm stat})\pm0.69({\rm syst})$ per event, and the ratio $N_\phi/N_h^-$ is found to be $0.021\pm0.001({\rm stat})\pm0.04({\rm syst})$. The measured ratio $N_\phi/N_h^-$ and $T$ for the $\phi$ meson at midrapidity do not change for the selected multiplicity bins.

  • Figure 2.0

    Data from Figure 2.0

    10.17182/hepdata.102317.v1/t1

    Transverse mass distriution of $\phi$ for 0-11% centrality in Au+Au collisions at 130 GeV.

  • Figure 2.1

    Data from Figure 2.0

    10.17182/hepdata.102317.v1/t2

    Transverse mass distriution of $\phi$ for 11-26% centrality in Au+Au collisions at 130 GeV.

  • Figure 2.2

    Data from Figure 2.0

    10.17182/hepdata.102317.v1/t3

    Transverse mass distriution of $\phi$ for 26-85% centrality in Au+Au collisions at 130 GeV.

  • Table 1.0

    Data from Table 1.0

    10.17182/hepdata.102317.v1/t4

    Slope parameter T, dN/y, $N_\phi/N_h^-$. Systematic uncertainties on T are 12%, on dN/dy are 12%, and on $N_{\phi}/N_{h^-}$ are 22%.

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