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Extraction of radiative decay width for the non-strange partner of Θ

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Abstract.

Using the results of the GRAAL Collaboration on the η photoproduction from the neutron target, we attempt to extract the partial radiative width of the possible new nucleon resonance N *(1675). The obtained estimates support this resonance to be a very attractive candidate for the non-strange member of the exotic antidecuplet of baryons --a partner of the Θ+ pentaquark. Our phenomenological value for the transition magnetic moment μ(n * n), appears to be in good agreement with the predictions of the Chiral Quark Soliton Model.

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Authors and Affiliations

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

    Ya. Azimov & M. V. Polyakov

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

    V. Kuznetsov

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

    M. V. Polyakov

  4. Center for Nuclear Studies, Physics Department, The George Washington University, 23606, Washington, DC, USA

    I. Strakovsky

Authors
  1. Ya. Azimov
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  2. V. Kuznetsov
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  3. M. V. Polyakov
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  4. I. Strakovsky
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V.V. Anisovich

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Azimov, Y., Kuznetsov, V., Polyakov, M.V. et al. Extraction of radiative decay width for the non-strange partner of Θ. Eur. Phys. J. A 25, 325–327 (2005). https://doi.org/10.1140/epja/i2005-10139-6

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  • DOI: https://doi.org/10.1140/epja/i2005-10139-6

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