$\eta n$ photoproduction and nucleon resonances

Abstract

We present results of a recent work on the reaction mechanism of $\eta n$ photoproduction off the neutron in the range of $\sqrt{s}\approx 1.5-1.9$ GeV and discuss the role of various nucleon resonances listed in the Particle Data Group (PDG). We make use of an effective Lagrangian approach combining with a Regge method. The total and helicity-dependent cross sections ${\sigma }_{1/2},{\sigma }_{3/2}$ are computed and the numerical results are in good agreement with the A2 experimental data.

Comments: 4 pages, 3 figures. Contribution to the Proceedings of the 22nd International Conference on Few-Body Problems in Physics (FB22)