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 Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

The recently discovered enhancement of eta photoproduction on the quasi-freeneutron at energies around s^1/2 ~ 1.67 GeV is addressed within an SU(3)coupled channels model. The K Sigma threshold plays a significant role and thequasi-free cross sections on proton and neutron, sigma_n and sigma_p, can bequantitatively explained. For the reaction gamma p --> pi^0 eta p, we evaluatethe polarization observables I^S and I^C from a chiral unitary amplitudedeveloped earlier. The I^S and I^C observables have been recently measured forthe first time by the CBELSA/TAPS collaboration. We show the significance ofthe Delta(1700)D33 resonance and its S-wave decay into eta Delta(1232) whichfurther confirms the dynamical nature of this resonance.

On eta photoproduction on the neutron and pi^0 eta photoproduction