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Extraction of radiative decay width for the non-strange partner of Theta^+

Ya. Azimov·V. Kuznetsov·M. V. Polyakov·I. Strakovsky
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Abstract

Using the results of the GRAAL collaboration on the ηphotoproduction 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 predictions of the Chiral Quark Soliton Model.

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Ya. Azimov, V. Kuznetsov, M. V. Polyakov, I. Strakovsky. 2005-11-17. Extraction of radiative decay width for the non-strange partner of Theta^+. https://doi.org/10.1140/epja%2Fi2005-10139-6

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