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New narrow nucleon N* (1685)

  • Fields, Particles, and Nuclei
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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.

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Authors and Affiliations

  1. Kyungpook National University, 702-701, Daegu, Republic of Korea

    V. Kuznetsov

  2. Institute for Nuclear Research, Moscow, 117312, Russia

    V. Kuznetsov

  3. Institute für Theoretische Physik II, Ruhr-Universität Bochum, D-44780, Bochum, Germany

    M. V. Polyakov

  4. Petersburg Nuclear Physics Institute, Gatchina, St. Petersburg, 188300, Russia

    M. V. Polyakov

Authors
  1. V. Kuznetsov
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  2. M. V. Polyakov
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Kuznetsov, V., Polyakov, M.V. New narrow nucleon N* (1685). Jetp Lett. 88, 347–350 (2008). https://doi.org/10.1134/S002136400818001X

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  • DOI: https://doi.org/10.1134/S002136400818001X

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