Parity mixing inF18and low-energy inelastic electron scattering

Abstract

The possibility of probing parity mixing in $^{18}\mathrm{F}$ by polarized low-energy inelastic electron scattering is analyzed making use of the "elementary-particle" treatment. The nuclear form factors are determined by the $\ensuremath{\gamma}$ transition rates, gauge invariance, and certain general features abstracted from nuclear-model calculations. It is found that the effects due to the exchange of the neutral weak boson between the electron and the nucleus are completely negligible as compared with those due to the mixing of the two adjacent nuclear states of opposite parity. It is also found that the enhancement of the asymmetry at backward electron scattering angles rises linearly with the incident electron energy.NUCLEAR STRUCTURE ${e}^{\ensuremath{-}}^{18}\mathrm{F}(\mathrm{g}.\mathrm{s}.)\ensuremath{\rightarrow}{e}^{\ensuremath{-}}^{18}\mathrm{F}^{*}(1.08)$; theoretical analysis of using polarized low-energy inelastic electron scattering to probe parity mixing in $^{18}\mathrm{F}$*(1.08).