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New Narrow Nucleon N*(1685)
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We argue that the existence of a new narrow (Gamma < 25 MeV) nucleon resonance N*(1685) is strongly supported by recent data on eta 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 Theta+. All up to date known properties of new N*(1685) are summarized.
Forward citations
Cited by 2 Pith papers
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Pentaquarks and Maxim V. Polyakov
A review argues that Diakonov-Petrov-Polyakov's narrow-width Theta+ pentaquark prediction remains viable, identifying N*(1685) as the antidecuplet partner and citing LEPS/DIANA data as support.
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Odyssey of the elusive $\Theta^+$
A review of the Theta+ pentaquark story concludes that the chiral soliton model's small-width prediction remains viable and new kaon-beam experiments may decide its existence.
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