Production of ${\ensuremath{\Lambda}}^{0}$, ${\overline{\ensuremath{\Lambda}}}^{0}$, ${\ensuremath{\Xi}}^{\ifmmode\pm\else\textpm\fi{}}$, and ${\ensuremath{\Omega}}^{\mathbf{\ifmmode\pm\else\textpm\fi{}}}$ hyperons in $p\overline{p}$ collisions at $\sqrt{s}\mathbf{=}1.96\text{ }\text{ }\mathrm{TeV}$

Production of $Λ^{0}$ , ${\bar{Λ}}^{0}$ , $Ξ^{\pm}$ , and $Ω^{\pm}$ hyperons in $p \bar{p}$ collisions at $\sqrt{s} = 1.96 TeV$

T. Aaltonen et al. (CDF Collaboration)

Phys. Rev. D 86, 012002 – Published 13 July 2012

Abstract

We report a set of measurements of inclusive invariant $p_{T}$ differential cross sections of $Λ^{0}$ , ${\bar{Λ}}^{0}$ , $Ξ^{\pm}$ , and $Ω^{\pm}$ hyperons reconstructed in the central region with pseudorapidity $| η | < 1$ and $p_{T}$ up to $10 GeV / c$ . Events are collected with a minimum-bias trigger in $p \bar{p}$ collisions at a center-of-mass energy of 1.96 TeV using the CDF II detector at the Tevatron Collider. As $p_{T}$ increases, the slopes of the differential cross sections of the three particles are similar, which could indicate a universality of the particle production in $p_{T}$ . The invariant differential cross sections are also presented for different charged-particle multiplicity intervals.