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doi:10.1103/PhysRevLett.87.242501

Precision Measurement of the Spin-Dependent Asymmetry in the Threshold Region of $^{3} \vec{H} e (\vec{e}, e^{'})$

F. Xiong et al.

Phys. Rev. Lett. 87, 242501 – Published 27 November 2001

Abstract

We present the first precision measurement of the spin-dependent asymmetry in the threshold region of $^{3} \vec{H} e (\vec{e} {, e}^{'})$ at $Q^{2}$ values of 0.1 and $0.2 (GeV / c)^{2}$ . The agreement between the data and nonrelativistic Faddeev calculations which include both final-state interactions and meson-exchange current effects is very good at $Q^{2} = 0.1 (GeV / c)^{2}$ , while a small discrepancy at $Q^{2} = 0.2 (GeV / c)^{2}$ is observed.