Generalized Sachs Form Factors and the Possibility of Their Measurement in Processes without and with Proton Spin Flip

M. V. Galynskii, R. E. Gerasimov

Research output: Contribution to journalArticlepeer-review

Abstract

The differential cross section for elastic electron-proton scattering has been calculated taking into account the two-photon exchange within the phenomenological description of the electromagnetic electron-proton interactions. The calculation is based on the consistent evaluation of the matrix elements of the proton current in a diagonal spin basis, which makes it possible to naturally obtain expressions for the generalized Sachs form factors. A new method has been proposed to independently measure these form factors in the elastic ep→ → ep→ process in the case where the initial proton at rest is fully polarized along the direction of the motion of the final proton.

Original languageEnglish
Pages (from-to)646-653
Number of pages8
JournalJETP Letters
Volume110
Issue number10
DOIs
Publication statusPublished - 1 Nov 2019

Keywords

  • POLARIZATION
  • SCATTERING

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