LAUSR

We investigate roads for evaluating model-independent cross-section-distribution functions for the sequential-hyperon decay ${\mathrm{\ensuremath{\Sigma}}}^{0}\ensuremath{\rightarrow}\mathrm{\ensuremath{\Lambda}}\ensuremath{\gamma}$; $\mathrm{\ensuremath{\Lambda}}\ensuremath{\rightarrow}p{\ensuremath{\pi}}^{\ensuremath{-}}$ and its corresponding antihyperon decay. The ${\mathrm{\ensuremath{\Sigma}}}^{0}$ and ${\overline{\mathrm{\ensuremath{\Sigma}}}}^{0}$ hyperons are produced in the reaction ${e}^{+}{e}^{\ensuremath{-}}\ensuremath{\rightarrow}J/\ensuremath{\psi}\ensuremath{\rightarrow}{\overline{\mathrm{\ensuremath{\Sigma}}}}^{0}{\mathrm{\ensuremath{\Sigma}}}^{0}$. Cross-section-distribution functions are calculated using the folding technique, but a comparison with results using the helicity technique is also made.