Measurement of inclusive $\Lambda(1520)$ photoproduction on deuteron

The possible observation of the $\gamma n \rightarrow K^- \Theta^+$ reaction in LEPS and non-observation of the reaction $\gamma p \rightarrow \bar{K^0} \Theta^+$ in CLAS would require a large isospin asymmetry in the cross section. In 2005, Nam, Hosaka and Kim proposed a large isospin asymmetry in the cross section due to the possible absence of a contact term (Kroll-Ruderman term) in production from the neutron of a $\Theta^+$ with spin 3/2. The $\Lambda(1520)$ is a well-established excited hyperon with spin and parity $J^{P}=3/2^-$. If a large isospin asymmetry exists in the $\Theta^+$ photoproduction ($\sigma_n(\Theta^+) >> \sigma_p(\Theta^+)$), then a similar but opposite cross section asymmetry is predicted in the photoproduction of $\Lambda(1520)$ from the proton and neutron ($\sigma_n(\Lambda^*) << \sigma_p(\Lambda^*)$). This talk will report the measurement of differential cross sections and decay angular distributions for the inclusive reaction $\gamma d \rightarrow \Lambda(1520) X$ at Jefferson Laboratory using the CLAS detector. Data for $\Lambda(1520)$ photoproduction from both proton and neutron targets will be discussed.