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"differential cross section: x-dependence"
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Inclusive $\\mathrm{V^0}$ production cross sections from 920 GeV fixed target proton-nucleus collisions
Inclusive differential cross sections $d\\sigma_{pA}/dx_F$ and $d\\sigma_{pA}/dp_t^2$ for the production of \\kzeros, \\lambdazero, and \\antilambda particles are measured at HERA in proton-induced reactions on C, Al, Ti, and W targets. The incident beam energy is 920 GeV, corresponding to $\\sqrt {s} = 41.6$ GeV in the proton-nucleon system. The ratios of differential cross sections \\rklpa and \\rllpa are measured to be $6.2\\pm 0.5$ and $0.66\\pm 0.07$, respectively, for \\xf $\\approx-0.06$. No significant dependence upon the target material is observed. Within errors, the slopes of the transverse momentum distributions $d\\sigma_{pA}/dp_t^2$ also show no significant dependence upon the target material. The dependence of the extrapolated total cross sections $\\sigma_{pA}$ on the atomic mass $A$ of the target material is discussed, and the deduced cross sections per nucleon $\\sigma_{pN}$ are compared with results obtained at other energies.
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