Neutron spin-dependent structure function, Bjorken sum rule, and first evidence for singlet contribution at low x

J. Soffer, O. Teryaev

We perform the isospin decomposition of proton and neutron SLAC data in the region $0.01\le x\le 0.1$. The isovector part is well described by a power behaviour $x^{\alpha }$, where $α…