Abstract
We investigate the η photoproduction using the effective Lagrangian approach at the tree level. We include eight nucleon resonances, that is, D13(1520), S11(1535), S11(1650), D15(1675), F15(1680), D13(1700), P11(1710), P13(1720) as well as possible background contributions. In addition, we introduce the new nucleon resonance N*(1675) which was announced by the GRAAL, CB-ELSA and Tohoku LNS-GeV-γ experiments. We investigate a possible role of the resonance with testing its spin and parity for four different cases of JP = 1/2± and 3/2±. We calculate various cross sections including beam asymmetries for neutron and proton targets. We find noticeable isospin asymmetry in transition amplitudes for proton and neutron targets.
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