https://doi.org/10.1140/epja/i2006-10422-0
PAVI 2006
Beam normal spin asymmetries: Theory
1
Department of Physics, College of William and Mary, 23187, Williamsburg, VA, USA
2
Thomas Jefferson National Accelerator Facility, 23606, Newport News, VA, USA
* e-mail: marcvdh@jlab.org
Received:
31
August
2006
Accepted:
18
March
2007
Published online:
3
July
2007
The beam normal spin asymmetry in elastic electron-nucleon scattering is discussed. This beam normal spin asymmetry depends on the imaginary part of two-photon exchange processes between electron and nucleon, and measures the non-forward structure functions of the nucleon. After briefly reviewing the theoretical formalism, we discuss calculations in the threshold region, in the resonance region, as well as in the diffractive region, corresponding with high energy and forward angles.
PACS: 25.30.Bf Elastic electron scattering – / 24.70.+s Polarization phenomena in reactions –
© Società Italiana di Fisica and Springer-Verlag, 2007