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Monopole Excitation Corrections to Electron Elastic Scattering

1966; American Institute of Physics; Volume: 151; Issue: 3 Linguagem: Inglês

10.1103/physrev.151.846

1536-6065

George Rawitscher,

Atomic and Molecular Physics

The effect of the virtual excitation of nuclear levels on the elastic electron-scattering cross section is calculated by means of a phase-shift analysis method under the assumption that the inelastic excitation is represented by a single monopole transition and that the nuclear excitation energy can be neglected. The formulas are applied to the case of 250-MeV electrons and positrons incident on the nucleus of Ca. Effects of the order of 5% are found in the vicinity of the first diffraction minimum.