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arXiv · hep-ex/9703015

Atomic mass dependence of Ξ^- and \overlineΞ^+ production in central 250 GeV π^- nucleon interactions

Fermilab E769 Collaboration
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Abstract

We present the first measurement of the atomic mass dependence of central Ξ^- and \overlineΞ^+ production. It is measured using a sample of 22,459 Ξ^-'s and \overlineΞ^+'s produced in collisions between a 250 GeV π^- beam and targets of beryllium, aluminum, copper, and tungsten. The relative cross sections are fit to the two parameter function σ_0 A^α, where A is the atomic mass. We measure α= 0.924+-0.020+-0.025, for Feynman-x in the range -0.09 < x_F < 0.15.

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Fermilab E769 Collaboration. 1997-03-28. Atomic mass dependence of Ξ^- and \overlineΞ^+ production in central 250 GeV π^- nucleon interactions. https://doi.org/10.1103/physrevd.56.6003

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