Scattering of fast protons by non-spherical nuclei

✍ Scribed by S.I. Drozdov

• Publisher: Elsevier Science
• Year: 1958
• Weight: 576 KB
• Volume: 7
• Category: Article
• ISSN: 0891-3919
• DOI: 10.1016/0891-3919(58)90082-2

✦ Synopsis

There is a substantial difference between the angular distributions of protons scattered by spherical and by non-spherical nuclei, and by comparing theoretical calculations with experiment the deviation of a nucleus from a spherical shape can be estimated. The scattering of fast protons by non-spherical nuclei is considered for the case where the proton energy is large compared with the Coulomb barrier energy (E > 20 MeV). Further, a 'black' model of the nucleus and the adiabatic approximation are also assumed; then the effective scattering cross-sections can be found by determining the amplitude for scattering by a fixed nucleus. It is shown that the amplitude can be represented as a sum of the amplitudes for diffractive scattering and for scattering by the electric field of the nucleus. Both these amplitudes are derived assuming that the deviation of the nucleus from spherical shape is small (cc,.W/Av < 1). The angular distributions of protons scattered by even-even nuclei are evaluated.