Neutron spin structure with polarized deuterons and spectator proton tagging at EIC

[摘要] The neutron's deep-inelastic structure functions provide essential information for the flavor separation of the nucleon parton densities, the nucleon spin decomposition, and precision studies of QCD phenomena in the flavor-singlet and nonsinglet sectors. Traditional inclusive measurements on nuclear targets are limited by dilution from scattering on protons, Fermi motion and binding effects, final-state interactions, and nuclear shadowing at x ≤ 0.1. An Electron-Ion Collider (EIC) would enable next-generation measurements of neutron structure with polarized deuteron beams and detection of forward-moving spectator protons over a wide range of recoil momenta (0 R

[发布机构] Ghent University, Gent; 9000, Belgium^1;Petersburg Nuclear Physics Institute, Gatchina; 188300, Russia^2;Jefferson Lab, Newport News; VA; 23606, United States^3;Old Dominion University, Norfolk; VA; 23529, United States^4;Florida International University, Miami; FL; 33199, United States^5;Pennsylvania State University, University Park; PA; 16802, United States^6

[关键词] Final state interactions;Inelastic structure;Nuclear modification;Polarized deuteron beam;Polarized deuterons;Polarized scattering;Structure functions;Structure measurement