Beam normal spin asymmetry in elastic lepton-nucleon scattering
Journal Article
·
· Nuclear Physics. A
We discuss the two-photon exchange contribution to observables which involve lepton helicity flip in elastic lepton-nucleon scattering. This contribution is accessed through the spin asymmetry for a lepton beam polarized normal to the scattering plane. We estimate this beam normal spin asymmetry at large momentum transfer using a parton model and we express the corresponding amplitude in terms of generalized parton distributions.
- Research Organization:
- Thomas Jefferson National Accelerator Facility, Newport News, VA (US)
- Sponsoring Organization:
- USDOE Office of Energy Research (ER) (US)
- DOE Contract Number:
- AC05-84ER40150
- OSTI ID:
- 824717
- Report Number(s):
- JLAB-THY-04-222; DOE/ER/40150-2699; hep-ph/0404206
- Journal Information:
- Nuclear Physics. A, Journal Name: Nuclear Physics. A Vol. 741; ISSN 0375-9474
- Country of Publication:
- United States
- Language:
- English
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