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

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

2005-06-23

arxiv.org/abs/hep-ph/0506236v2

Eur.Phys.J.A25:325-327,2005

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, v2 corresponds to the journal publication

Scientific paper

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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