Abstract:
We argue that the existence of a new narrow (Γ≤25MeV) nucleon resonance N∗(1685) is strongly supported by recent data on η photoproduction off the nucleon. The resonance has much stronger photo-coupling to the neutron than to the proton. This nucleon resonance is a good candidate for the non-strange member of the exotic anti-decouplet of baryons – the partner of the pentaquark Θ+. All known to the date properties of new N∗(1685) are summarized.
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