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Energy Dependence of Proton-Proton Scattering, 18.8 to 31.8 Mev
Phys. Rev. 80, 321 – Published 1 November, 1950Erratum Phys. Rev. 82, 103 (1951)
DOI: https://doi.org/10.1103/PhysRev.80.321
Abstract
Measurements have been made of the absolute differential cross section of proton-proton scattering at 90° in the center-of-mass system. The energy of the incident protons was varied from 31.8 Mev down to 18.8 Mev, and an energy interval of ±1.0 percent was selected by means of a deflecting magnet. Apparatus using a proportional counter and a triple coincidence method was used to reduce the background. Measurements were made simultaneously, using apparatus for measuring the angular distribution at 31.8 Mev and a single charge integrator for collecting the incident proton beam.
The cross section at 90° in the center-of-mass system varies approximately as the reciprocal of the energy of the incident protons over the range investigated. Data are presented to show this dependence. Comparison is made with a Yukawa potential well, and with the tensor model selected by Christian and Noyes.
Erratum
Erratum: Energy Dependence of Proton-Proton Scattering, 18.8 to 31.8 Mev
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