2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/48148We investigate the $sin ϕ$ azimuthal asymmetry in the semi-inclusive deep-inelastic lepton scattering off longitudinally polarized nucleon target arising from the time reversal odd structures. The order 1/Q contributions of the leading twist and twist-three distribution and fragmentation functions to that asymmetry for the certain kinematical conditions are numerically estimated.9 pages, Revtex, 4 Postscript figuresHigh Energy Physics - Phenomenologytext