New Measurements of the Transverse Beam Asymmetry for Elastic Electron Scattering from Selected Nuclei

The HAPPEX, PREX Collaborations, : +195

We have measured the beam-normal single-spin asymmetry $A_n$ in the elastic scattering of 1-3 GeV transversely polarized electrons from ${}^1$H and for the first time from ${}^4$He, $^…