On the exotic eikosiheptaplet

Details On the exotic eikosiheptaplet On the exotic eikosiheptaplet

2007-08-13

arxiv.org/abs/0708.1686v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages, 2 figures, v2 accepted for publication in Phys. Rev. D

Scientific paper

We use the chiral quark soliton model to estimate masses and widths of the two eikosiheptaplets (27-plets of SU(3) flavor) of spin 3/2 and 1/2 that emerge in the rigid rotator quantization. We use as input: hyperon decays, Theta+ mass and width. While 27_{3/2} has small widths (although much larger than the values allowed by the partial wave analysis), 27_{1/2} has large decay widths to antidecuplet. However exactly for this decay channels the widths are suppressed in the large N_{c} limit.

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