Measurement of thecontribution to the stopping power using MeV protons and antiprotons: The Barkas effect
- 10 April 1989
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 62 (15) , 1731-1734
- https://doi.org/10.1103/physrevlett.62.1731
Abstract
The stopping power for antiprotons has been measured for the first time. The antiproton stopping power of silicon is found to be 3%–19% lower than for equivelocity protons over the energy range 3.01 to 0.538 MeV. The ‘‘ contribution’’ to the stopping power (the Barkas effect) is deduced by comparing the stopping power for protons and antiprotons.
Keywords
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