JETP Letters

, Volume 88, Issue 6, pp 347–350 | Cite as

New narrow nucleon N* (1685)

  • V. Kuznetsov
  • M. V. Polyakov
Fields, Particles, and Nuclei

Abstract

We argue that the existence of a new narrow (Γ ≤ 25 MeV) nucleon resonance N* (1685) is strongly supported by recent data on the η photoproduction off the nucleon. The resonance has a much stronger photocoupling to the neutron than to the proton. This nucleon resonance is a good candidate for the nonstrange member of the exotic antidecouplet of baryons—the partner of the pentaquark Θ+. All of the properties of new N* (1685) known to date are summarized.

PACS numbers

13.60.Le 14.20.Gk 

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Copyright information

© Pleiades Publishing, Ltd. 2008

Authors and Affiliations

  • V. Kuznetsov
    • 1
    • 2
  • M. V. Polyakov
    • 3
    • 4
  1. 1.Kyungpook National UniversityDaeguRepublic of Korea
  2. 2.Institute for Nuclear ResearchMoscowRussia
  3. 3.Institute für Theoretische Physik IIRuhr-Universität BochumBochumGermany
  4. 4.Petersburg Nuclear Physics InstituteGatchina, St. PetersburgRussia

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