Determination of the ${\Theta }^{+}$ parity from $\gamma n\to K^{-}{K}^{+}n$

K. Nakayama, K. Tsushima

It is demonstrated that measurements of photon asymmetry in the $\gamma n\to K^{-}{K}^{+}n$ reaction, can most likely determine the parity of the newly discovered ${\Theta }^{+}$ pentaquark. We predi…