Two-photon Exchange Corrections to Single Spin Asymmetry of Neutron and He
arXiv:0911.5001 · doi:10.1088/0253-6102/55/3/22
Abstract
In a simple hadronic model, the two-photon exchange contributions to the single spin asymmetries for the nucleon and the He are estimated. The results show that the elastic contributions of two-photon exchange to the the single spin asymmetries for the nucleon are rather small while those for the He are relatively large. Besides the strong angular dependence, the two-photon contributions to the single spin asymmetry for the He are very sensitive to the momentum transfer.
11 pages, 8 figures
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