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Absorption cross sections for antiprotons on carbon, aluminum and copper at 485 and 597 MeV/c |
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| Authors: | H Aihara J Chiba H Fujii T Fujii H Iwasaki T Kamae K Nakamura T Sumiyoshi Y Takada T Takeda M Yamauchi |
| Institution: | Department of Physics, University of Tokyo, Tokyo 113, Japan Department of Physics, Hiroshima University, Hiroshima 730, Japan |
| 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. |
| Keywords: | Nucleat reactions |
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