This article is cited in 25 papers

FIELDS, PARTICLES, AND NUCLEI

New narrow nucleon N$^*$(1685)

V. Kuznetsov^ab, M. V. Polyakov<sup>cd

a</sup> Institute for Nuclear Research, Moscow, 117312, Russia
^b Kyungpook National University, 702-701, Daegu, Republic of Korea
^c Petersburg Nuclear Physics Institute, Gatchina, St. Petersburg, 188300, Russia
^d Institute für Theoretische Physik II, Ruhr-Universität Bochum, D-44780 Bochum, Germany

Abstract: We argue that the existence of a new narrow ($\Gamma\leq25\,$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 known to the date properties of new N$^*$(1685) are summarized.

PACS: 13.60.Le, 14.20.Gk

Received: 21.07.2008

Language: English

 English version: Journal of Experimental and Theoretical Physics Letters, 2008, 88:6, 347–350

Bibliographic databases:

• 
•