Phys. Rev. D 56, 6003–6005 (1997)Atomic mass dependence of Ξ- and Ξ̅ + production in central 250 GeV π--nucleon interactionsReceived 26 March 1997; published in the issue dated 1 November 1997 We present a measurement of the atomic mass dependence of central Ξ- and Ξ̅ + production. It is measured using a sample of 22 459 Ξ-’s and Ξ̅ +’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 σ0Aα, where A is the atomic mass. We measure α=0.924±0.020±0.025, for Feynman x in the range -0.09<xF<0.15. © 1997 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevD.56.6003
DOI:
10.1103/PhysRevD.56.6003
PACS:
13.85.Ni, 12.38.Qk, 25.80.Ls
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