New Family of Exotic $Θ$-Baryons

Borisyuk, Dmitry; Faber, Manfried; Kobushkin, Alexander

New Family of Exotic $Θ$-Baryons

Authors

Borisyuk, Dmitry

Faber, Manfried

Kobushkin, Alexander

Description

From the interpretation of the $Θ^+$ baryon resonance as an excitation of the ``skyrmion liquid'' with SU(3) flavor symmetry $\bar{10}$ we deduce a new series of baryons, $Θ_1^{++}$, $Θ_1^{+}$ and $Θ_1^0$, situated at the top of the 27-plet of SU(3) flavor, with hypercharge Y=2, isospin T=1 and spin $J=\frac32$. The mass of $Θ_1$ is estimated 55 MeV/c^2 higher then the mass of $Θ^+$ and its width at 80 MeV. We also discuss the other baryons from the 27-plet.
4 pages, 1 figure