Beam-Normal Single Spin Asymmetry in Elastic Electron Scattering off ${}^{28}$Si and ${}^{90}$Zr

Abstract

We report on a new measurement of the beam-normal single spin asymmetry $A_{\mathrm{n}}$ in the elastic scattering of 570 MeV transversely polarized electrons off ${}^{28}$Si and ${}^{90}$Zr at $Q^2=0.04{\mathrm{GeV}}^2/c^2$. The studied kinematics allow for a comprehensive comparison with former results on ${}^{12}$C. No significant mass dependence of the beam-normal single spin asymmetry is observed in the mass regime from ${}^{12}$C to ${}^{90}$Zr.

arXiv commentSubmitted for publication to Physics Letters B

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• Combined theoretical analysis of the parity-violating asymmetry for ${}^{48}$Ca and ${}^{208}Pb$
• The Present and Future of QCD
• New Measurements of the Beam-Normal Single Spin Asymmetry in Elastic Electron Scattering Over a Range of Spin-0 Nuclei
• Beam-normal single-spin asymmetry in elastic scattering of electrons from a spin-0 nucleus
• Measurement of the Beam-Normal Single-Spin Asymmetry for Elastic Electron Scattering from ${}^{12}$C and ${}^{27}$Al