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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/12491
Empirical determination of the very high energy heavy quark cross section from nonaccelerator data
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To cosmic rays incident near the horizon the Earth's atmosphere represents a beam dump with a slant depth reaching 36 000 g cm-2 at 90. The prompt decay of a heavy quark produced by very high energy cosmic ray showers will leave an unmistakable signature in this dump. We translate the failure of experiments to detect such a signal into an upper limit on the heavy quark hadroproduction cross section in the energy region beyond existing accelerators. Our results disfavor any rapid growth of the cross section or the gluon structure function beyond conservative estimates based on perturbative QCD.
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GONZÁLEZ GARCÍA, Ma. Concepción, HALZEN, Francis and VÁZQUEZ, R. A. Empirical determination of the very high energy heavy quark cross section from nonaccelerator data. Physical Review D. 1994. Vol. 49, num. 5, pags. 2310-2315. ISSN 0556-2821. [consulted: 12 of June of 2026]. Available at: https://hdl.handle.net/2445/12491