English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We investigate $\eta$ photoproduction off the neutron target, i.e., $\gamma n\to \eta n$, employing an effective Lagrangian method combining with a Reggeapproach. As a background, we consider nucleon exchange in the $s$-channeldiagram and $\rho$- and $\omega$-meson Regge trajectories in the $t$ channel.The role of nucleon resonances given in the Review of Particle Data Group inthe range of $W \approx 1500 - 2100$ MeV and the narrow nucleon resonance$N(1685,1/2^+)$ is extensively studied. The numerical results of the total anddifferential cross sections, double polarization observable $E$, andhelicity-dependent cross sections $\sigma_{1/2}$, $\sigma_{3/2}$ are found tobe in qualitative agreement with the recent A2 experimental data. Thepredictions of the beam asymmetry are also given.

Effects of nucleon resonances on $\eta$ photoproduction off the neutron reexamined