Differential Cross Section for ${\hat{I}}^{3}d\to \ddot{I}‰d$ using CLAS at Jefferson Lab

Abstract

The cross section for coherent $\ddot{I}‰$-meson photoproduction off the deuteron has been measured for the first time as a function of the momentum transfer $t=(P_{\hat{I}}^3-P_{\ddot{I}}‰{)}^2$ and photon energy $E_{\hat{I}}^3$ using the CLAS detector at the Thomas Jefferson National Accelerator Facility. The cross sections are measured in the energy range $1.4<E_{\hat{I}}^3<3.4$ GeV. A model based on $\ddot{I}‰-N$ rescattering is consistent with the data at low and intermediate momentum transfer, $|t|$. For $2.8<E_{\hat{I}}^3<3.4$ GeV, the total cross-section of $\ddot{I}‰-N$ scattering, based on fits within the framework of the Vector Meson Dominance model, is in the range of 30-40 mb.

8 pages, 5 figures