We analyse the available data on the polarized asymmetries A1 for proton, neutron and deutron targets. We use a homogeneous and updated set of unpolarized structure functions to derive g1 from A1, and we accurately correct for the scaling violations in order to obtain g1(x, Q2) with the same Q2 for all x values. The contribution to the Q2 evolution of a possible large gluon polarized density is also considered. The implications for the Ellis-Jaffe and for the Bjorken sum rules are discussed
Altarelli, G., Nason, P., Ridolfi, G. (1994). On the Q2 dependence of the measured polarized structure functions. PHYSICS LETTERS. SECTION B, 320(1-2), 152-158 [10.1016/0370-2693(94)90839-7].
On the Q2 dependence of the measured polarized structure functions
Nason, P.;
1994
Abstract
We analyse the available data on the polarized asymmetries A1 for proton, neutron and deutron targets. We use a homogeneous and updated set of unpolarized structure functions to derive g1 from A1, and we accurately correct for the scaling violations in order to obtain g1(x, Q2) with the same Q2 for all x values. The contribution to the Q2 evolution of a possible large gluon polarized density is also considered. The implications for the Ellis-Jaffe and for the Bjorken sum rules are discussed
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