On the exotic eikosiheptaplet

Michal Praszalowicz; Klaus Goeke

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arXiv · 0708.1686

On the exotic eikosiheptaplet

Michal Praszalowicz·Klaus Goeke

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Abstract

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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Michal Praszalowicz, Klaus Goeke. 2007-09-19. On the exotic eikosiheptaplet. https://arxiv.org/abs/0708.1686

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