Transverse Beam Spin Asymmetries in Forward-Angle Elastic Electron-Proton Scattering

Authors

D. S. Armstrong
Angela Biselli, Fairfield UniversityFollow
G0 Collaboration

Document Type

Article

Article Version

Publisher's PDF

Publication Date

1-1-2007

Abstract

We have measured the beam-normal single-spin asymmetry in elastic scattering of transversely polarized 3 GeV electrons from unpolarized protons at Q2=0.15, 0.25  (GeV/c)2. The results are inconsistent with calculations solely using the elastic nucleon intermediate state and generally agree with calculations with significant inelastic hadronic intermediate state contributions. An provides a direct probe of the imaginary component of the 2γ exchange amplitude, the complete description of which is important in the interpretation of data from precision electron-scattering experiments.

Comments

Copyright American Physical Society Publisher final version available at http://prl.aps.org/pdf/PRL/v99/i9/e092301

Publication Title

Physical Review Letters

Repository Citation

Armstrong, D. S.; Biselli, Angela; and G0 Collaboration, "Transverse Beam Spin Asymmetries in Forward-Angle Elastic Electron-Proton Scattering" (2007). Physics Faculty Publications. 23.
https://digitalcommons.fairfield.edu/physics-facultypubs/23

Published Citation

D. S. Armstrong et al. [G0 Collaboration], "Transverse Beam Spin Asymmetries in Forward-Angle Elastic Electron-Proton Scattering", Physics Review Letters, Volume 99, Issue 99 092301 (2007). DOI: 10.1103/PhysRevLett.99.092301

DOI

10.1103/PhysRevLett.99.092301

Peer Reviewed