Differential Cross Section for $\gamma d\to \omega d$ using CLAS at Jefferson Lab

The cross section for coherent $\omega$-meson photoproduction off the deuteron has been measured for the first time as a function of the momentum transfer $t=(P_{\gamma }-P_{\omega }{)}^2$ and photon energy $E_{\gamma }$ using the CLAS detector at the Thomas Jefferson National Accelerator Facility. The cross sections are measured in the energy range $1.4<E_{\gamma }<3.4$ GeV. A model based on $\omega -N$ rescattering is consistent with the data at low and intermediate momentum transfer, $\mathrm{\mid }t\mathrm{\mid }$. For $2.8<E_{\gamma }<3.4$ GeV, the total cross-section of $\omega -N$ scattering, based on fits within the framework of the Vector Meson Dominance model, is in the range of 30-40 mb.