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Measurement of the neutron spin structure function g n 2 and asymmetry A n 2

Measurement of the neutron spin structure function g n 2 and asymmetry A n 2,10.1016/S0370-2693(97)00613-8,Physics Letters B,K. Abe,T. Akagi,B. D. And

Measurement of the neutron spin structure function g n 2 and asymmetry A n 2   (Citations: 2)
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K. Abe, T. Akagi, B. D. Anderson, P. L. Anthony, R. G. Arnold, T. Averett, H. R. Band, C. M. Berisso, P. Bogorad, H. Borel, P. E. Bosted, V. Bretonhttp://academic.research.microsoft.com/io.ashx?type=5&id=18415784&selfId1=0&selfId2=0&maxNumber=12&query=
We have measured the neutron structure function g2n and the virtual photon-nucleon asymmetry A2n over the kinematic range 0.014 ⩽ × ⩽ 0.7 and 1.0 ⩽ Q2 ⩽ 17.0 by scattering 48.3 GeV longitudinally polarized electrons from polarized 3He. Results for A2n are significantly smaller than the √R positivity limit over most of the measured range and data for g2n are generally consistent with the twist-2 Wandzura-Wilczek prediction. Using our measured g2n we obtain results for the twist-3 reduced matrix element d2n, and the integral ∫ g2n(x) dx in the range 0.014 ⩽ × ⩽ 1.0. Data from this experiment are combined with existing data for g2n to obtain an average for d2n and the integral ∫ g2n(x) dx.
Journal: Physics Letters B - PHYS LETT B , vol. 404, no. 3, pp. 377-382, 1997
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