Elsevier

Nuclear Physics A

Volume 360, Issue 2, 11 May 1981, Pages 291-296
Nuclear Physics A

Absorption cross sections for antiprotons on carbon, aluminum and copper at 485 and 597 MeV/c

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Abstract

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 σabs = γ(p/p0)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.

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Present address: Institute of Applied Physics, University of Tsukuba, Sakura, Ibaraki 300-31, Japan.

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