Antiproton Interaction Cross Sections
- 15 June 1956
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 102 (6), 1637-1640
- https://doi.org/10.1103/physrev.102.1637
Abstract
Using the 1.19-Bev/c antiproton beam recently discovered at the Berkeley Bevatron of the University of California, we have measured the attenuation cross section in beryllium and copper. These cross sections are compared to attenuation measurements made with the same geometry using positive protons of the same incident energy (497 Mev). The measurements were made at cut-off angles of 12.7° for copper, and at 18° for beryllium. For both copper and beryllium the measured attenuation cross section for antiprotons is twice that for positive protons, with a statistical error of ±15%. In addition, for both elements, more than half the attenuation events resulted in one or more fast charged secondary particles () — probably indicating that annihilations had taken place.
Keywords
This publication has 6 references indexed in Scilit:
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- Classical Field Theory of Nuclear ForcesPhysical Review B, 1955