Double polarization asymmetry as a possible filter for ${\Theta }^{+}$'s parity

Q. Zhao, J. S. Al-Khalili

We present an analysis of the Beam-Target double polarization asymmetry for the photoproduction of ${\Theta }^{+}$ in $\gamma n\to {\Theta }^{+}{K}^{-}$. We show that this quantity can serve as a filter for th…