{ "id": "hep-ex/9703015", "version": "v1", "published": "1997-03-28T21:47:38.000Z", "updated": "1997-03-28T21:47:38.000Z", "title": "Atomic mass dependence of Ξ^- and \\overlineΞ^+ production in central 250 GeV π^- nucleon interactions", "authors": [ "Fermilab E769 Collaboration" ], "comment": "10 pages, revtex, 2 figures, submitted to Phys. Rev. D", "journal": "Phys.Rev.D56:6003-6005,1997", "doi": "10.1103/PhysRevD.56.6003", "categories": [ "hep-ex" ], "abstract": "We present the first measurement of the atomic mass dependence of central \\Xi^- and \\overline{\\Xi}^+ production. It is measured using a sample of 22,459 \\Xi^-'s and \\overline{\\Xi}^+'s produced in collisions between a 250 GeV \\pi^- beam and targets of beryllium, aluminum, copper, and tungsten. The relative cross sections are fit to the two parameter function \\sigma_0 A^\\alpha, where A is the atomic mass. We measure \\alpha = 0.924+-0.020+-0.025, for Feynman-x in the range -0.09 < x_F < 0.15.", "revisions": [ { "version": "v1", "updated": "1997-03-28T21:47:38.000Z" } ], "analyses": { "subjects": [ "13.85.Ni", "25.80.Ls", "12.38.Qk" ], "keywords": [ "atomic mass dependence", "nucleon interactions", "production", "first measurement", "relative cross sections" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Phys. Rev. D" }, "note": { "typesetting": "RevTeX", "pages": 10, "language": "en", "license": "arXiv", "status": "editable", "inspire": 441682 } } }