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[en] Absorption cross sections for antiprotons on C, Al and Cu have been measured by a transmission method at 485 and 597 MeV/c. Nuclei are shown to be black to antiprotons at these momenta. Using the available data up to 280 GeV/c, the momentum dependence of the absorption cross sections is investigated. Empirically, a simple expression sigmasub(a)sub(b)sub(s) = γ(p/p0)-sup(β), with β and γ constants and p0 = 1 GeV/c, gives a good account of the data in a remarkably wide momentum range, 0.5 - 280 GeV/c. (orig.)
Journal
Nuclear Physics. A; ISSN 0375-9474; 
; v. 360(2); p. 291-296
; v. 360(2); p. 291-296