Speaker
Wim Cosyn
(Ghent University)
Description
Tagged DIS measurements on a polarized deuteron are possible at an electron-ion collider (EIC) with forward proton and neutron detectors. Using the pole extrapolation method, where one extrapolates to the on-shell pole of the struck nucleon, this would enable the extraction of high precision neutron (spin) structure functions in a wide range of $x,Q^2$. We outline the general form of the SIDIS cross section on a polarized spin 1 target, which has 41 structure functions. We show calculations in a factorized model using the $NN$ light-front wave function for the deuteron for unpolarized and polarized observables, with focus on the extraction of g1 for the quasi-free neutron at an EIC. We discuss the influence of nuclear final-state interactions and shadowing effects on observables and comment on possible extensions such as medium modifications, exclusive channels and nuclei with A>2.
Primary author
Wim Cosyn
(Ghent University)
Co-author
Christian Weiss
(Jefferson Lab)
