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arxiv: hep-ph/0506236 · v2 · pith:GQYAH43Znew · submitted 2005-06-23 · ✦ hep-ph · hep-ex· nucl-ex· nucl-th

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

classification ✦ hep-ph hep-exnucl-exnucl-th
keywords non-strangepartnerradiativeresonancethetawidthagreementantidecuplet
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Using the results of the GRAAL collaboration on the \eta 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 \Theta^+ pentaquark. Our phenomenological value for the transition magnetic moment \mu(n^* n), appears to be in good agreement with predictions of the Chiral Quark Soliton Model.

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