Analysis of $\phi$ Spin Density Matrix Elements at the GlueX Experiment

The analysis of the reaction $\gamma$, $p$ $\rightarrow$ $\phi$, $p$, where $\phi$(1020) decays into $K^+K^-$, is discussed. The preliminary measurement of the $\phi$ spin density matrix elements are shown and compared with past experimental data. This analysis is sensitive to detector acceptances and provides a high-level calibration for GlueX. Additionally, these data test details of s-channel helicity conservation, and they complement other GlueX analyses on the $\rho$ and $\omega$.