2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/180798We study relativistic corrections to nuclear interactions caused by boosting the two-nucleon interaction to a frame in which their total momentum does not vanish. These corrections induce a change in the computed value of the neutron-deuteron analyzing power A_y that is estimated using the plane-wave impulse approximation. This allows a transparent analytical calculation that demonstrates the significance of relativistic corrections. Faddeev calculations are however needed to conclude on the A_y puzzle.8 pages, 2 figures, minor addition, to appear in Phys. Rev. CNuclear TheoryNuclear Experimenttext