K*-couplings for the antidecuplet excitation

Details K*-couplings for the antidecuplet excitation K*-couplings for the antidecuplet excitation

2006-11-17

arxiv.org/abs/hep-ph/0611238v3

Phys.Rev.D75:054014,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages, 1 figure. Minor changes in text and abstract, references added; version to appear in Phys. Rev. D

Scientific paper

10.1103/PhysRevD.75.054014

We estimate the coupling of the K* vector meson to the N-->Theta+ transition employing unitary symmetry, vector meson dominance, and results from the GRAAL Collaboration for eta photoproduction off the neutron. Our small numerical value for the coupling constant is consistent with the non-observation of the Theta+ in recent CLAS searches for its photoproduction. We also estimate the K*-coupling for the N-->Sigma* excitation, with Sigma* being the Sigma-like antidecuplet partner of the Theta+-baryon.

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