Artigo Acesso aberto Revisado por pares

η photoproduction in the resonance energy region

2007; Elsevier BV; Volume: 650; Issue: 2-3 Linguagem: Inglês

10.1016/j.physletb.2007.05.005

ISSN

1873-2445

Autores

V. Shklyar, H. Lenske, U. Mosel,

Tópico(s)

Nuclear physics research studies

Resumo

The $η$ production in the nucleon resonance energy region is studied within the unitary coupled-channels effective Lagrangian approach of the Giessen model. We demonstrate that the second peak recently observed in the cross section of $η$ photoproduction on the neutron at $\sqrt{s}$=1.66 GeV can be explained in terms of coupled-channel effects due to $S_{11}(1650)$ and $P_{11}(1710)$ resonance excitations.

Referência(s)