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 channel the widths are suppressed in the large $N_c$ limit.

• Received 13 August 2007

DOI:https://doi.org/10.1103/PhysRevD.76.096003