1. Measurement of the Target-Normal Single-Spin Asymmetry in Quasielastic Scattering from the Reaction ³He↑(e,e').
- Author
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Zhang, Y.-W., Long, E., Mihovilovic, M., Jin, G., Allada, K., Anderson, B., Annand, J. R. M., Averett, T., Ayerbe-Gayoso, C., Boeglin, W., Bradshaw, P., Camsonne, A., Canan, M., Cates, G. D., Chen, C., Chen, J. P., Chudakov, E., De Leo, R., Deng, X., and Deur, A.
- Subjects
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ELECTRON spin , *QUASIELASTIC neutron scattering , *ASYMMETRY (Chemistry) , *NEUTRON cross sections , *QUASI-free reactions , *QUASI-elastic scattering , *CROSS-sectional method , *COLLISIONS (Nuclear physics) , *LEPTON-lepton scattering , *NEUTRONS , *TIME reversal , *POLARIZATION (Nuclear physics) - Abstract
The article reports on the measurement of single-spin asymmetry in quasielastic scattering on a 3He gas target polarized normal to the lepton scattering plane with the asymmetry being zero for one-photon exchange when assuming time-reversal invariance. It mentions neutron asymmetries were obtained by using the effective polarization approximation and proton to-3He cross-section ratios. It states the measured neutron asymmetry agreed with a two-photon exchange prediction.
- Published
- 2015
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