Equation-of-motion and Lorentz-invariance relations for tensor-polarized parton distribution functions of spin-1 hadrons

Structure functions of polarized spin-1 hadrons will be measured at various accelerator facilities in the near future. Recently, transverse-momentum-dependent and collinear parton distribution were theoretically proposed twist 3 4 addition to twist-2 ones, so that full investigations became possible for structure same level with those spin-1/2 nucleons. Furthermore, twist-3 tensor-polarized multiparton also recently found hadrons. In this work, we show relations among parton- multiparton-distribution by using equation motion quarks. These are valuable constraining learning about correlations