We show that definite polarization observables for the simplest electroproduction processes, $\\ell+N\\to \\ell+B(1/2^\\pm)+M(0^\\pm)$, $B=Y(\\Lambda, \\Sigma$ or $Y_c$-hyperon, $\\Theta^+$-pentaquark) and $M=K$, $\\overline{K}$ or $D$, are sensitive to the relative P-parity $\\pi(B)$ of the NBM-system. The interference of the longitudinal and transversal amplitudes for the collinear regime of the processes $\\gamma^*+N\\to B+M $($\\gamma^*$ is the virtual photon) - at any value of momentum transfer squared and excitation energy of the $BM$-system - generates model independent relations between analyzing powers ( in unpolarized lepton scattering by polarized target), from one side, and the components of the produced baryon $B$ polarization. It is important to stress that these relations depend on the above mentioned P-parity, and constitute a model independent method for the determination of unknown parities of strange and charm particles. |
