Nuclear effects in Deep Inelastic Scattering of polarized electrons off polarized 3He and the neutron spin structure functions

Abstract

It is shown that the nuclear effects playing a relevant role in Deep Inelastic Scattering of polarized electrons by polarized ${}^3$He are mainly those arising from the effective proton and neutron polarizations generated by the $S^{\prime }$ and $D$ waves in ${}^3$He. A simple and reliable equation relating the neutron, $g_1^n$, and ${}^3$He, $g_1^3$, spin structure functions is proposed. It is shown that the measurement of the first moment of the ${}^3$He structure function can provide a significant check of the Bjorken Sum Rule.

11 pages (revTeX), DFUPG 75/93; 5 (postscript) figures available upon request from the authors