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  • Access by Xinjiang University

Structure of the Neutron

Katsumi Tanaka

  • Argonne National Laboratory, Lemont, Illinois

Phys. Rev. 113, 714 – Published 15 January, 1959

DOI: https://doi.org/10.1103/PhysRev.113.714

Abstract

In an earlier paper, the contribution of the meson current to the electromagnetic structure of the nucleon was calculated by use of the dispersion relations for pion-nucleon scattering. Here the contribution of the nucleon current to the electromagnetic structure of the neutron is obtained analogously by use of the dispersion relations for neutron-proton scattering. Only the contribution from the one-pion and two-pion states of nucleon-nucleon scattering is considered. It is found that both states reduce the neutron-electron potential, i.e., leads to a smaller charge radius of the neutron. The contribution from the deuteron state is shown to be negligible. The resulting mean-square radii of the neutron, including the contributions of both meson and nucleon current, are (0.23×1013cm)2 for the charge distribution and (0.41×1013cm)2 for the magnetic moment distribution with f2=0.08.

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