HERMES Precision Results on g1p, g1d and g1n and the First Measurement of the Tensor Structure Function b1d

Abstract

Final HERMES results on the proton, deuteron and neutron structure function g1 are presented in the kinematic range 0.0021<x<0.9 and 0.1<Q2<20 GeV2. These results base on a refined analysis and are corrected for radiative and detector smearing effects using an unfolding algorithm. Furthermore, preliminary results on the first measurement of the tensor asymmetry Azz and the tensor structure function b1d are presented.Comment: Proceedings for Spin 2004 conference (16th international spin physics symposium) in Trieste, Italy (October 10-16, 2004); 4 pages, 3 figure