About the $Q^2$ dependence of asymmetry $A_1$

Abstract

We analyse the proton and deutron data on spin dependent asymmetry $A_1(x,Q^2)$ supposing the DIS structure functions $g_1(x,Q^2)$ and $F_3(x,Q^2)$ have the similar $Q^2$-dependence. As a result, we have obtained $\hat{I}{“}_1^p-\hat{I}{“}_1^n=0.192$ at $Q^2=10{\mathrm{GeV}}^2$ and $\hat{I}{“}_1^p-\hat{I}{“}_1^n=0.165$ at $Q^2=3{\mathrm{GeV}}^2$, in the best agreement with the Bjorken sum rule predictions.

Latex, 7 pages, 3 Postscript figures