Study of the $\eta$N scattering amplitude through the associated photoproduction of $\varphi$- and $\eta$-mesons in the region of the N*(1535) resonance

Matthias F. M. Lutz, Madeleine Soyeur

The $\gamma p\to \varphi \eta p$ reaction is studied in the kinematic region where the $\eta p$ final state originates dominantly from the decay of the N*(1535) resonance. The threshold laboratory pho…