Strange Skyrmions: status and observable predictions
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The chiral soliton approach (CSA) provides predictions of the rich spectrum of baryonic states with different values of strangeness for any baryon number B. In the sector with B=1 the well known octet and decuplet of baryons are described within CSA, and some exotic states are predicted. In the B=2 sector there are many predictions, but only few of them - e.g. the existence of the virtual $\Lambda$N-state - have been confirmed till now. Possible reasons for this are discussed. In particular, the B=2 SO(3) hedgehog interpreted usually as H-particle within CSA has dimensions considerably smaller than dimensions of the deuteron. Therefore, the estimates of its production cross section made previously in the assumption that H-particle and deuteron are approximately of the same size, may be too optimistic. Other branches of the CSA predictions corresponding to other local minima of the B=2 configurations of the SU(3) chiral fields: SU(2) torus and skyrmion molecule with strangeness content close to 0.5 are also considered.
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