Mass-identified particle production in proton-antiproton collisions ats=300, 540, 1000, and 1800GeV

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Abstract

The yields and average transverse momenta of pions, kaons, and antiprotons produced at the Fermilab $\overline{p}p$ collider at $\sqrt{s}=300, 540, 1000, \mathrm{and} 1800$ GeV are presented and compared with data from the energies reached at the CERN collider. We also present data on the dependence of average transverse momentum $〈{p}_{t}〉$ and particle ratios as a function of charged particle density $\frac{d{N}_{c}}{d\ensuremath{\eta}}$; data for particle densities as high as six times the average value, corresponding to a Bjorken energy density 6 GeV/${\mathrm{fm}}^{3}$, are reported. These data are relevant to the search for quark-gluon phase of QCD.

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