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On some properties of Exotic Baryons in Quasi particle diquark model

A. Bhattacharya, B. Chakrabarti, S. Mani, S. N. Banerjee

hep-pharXiv:hep-ph/0611367

Abstract

The properties of the Theta+ and Xi--3/2 exotic baryons have been investigated in the framework of diquark- diquark-antiquark system. A model for diquark suggested in an analogy with the quasi-particle in a crystal lattice has been used. The mass of the exotics have been computed. The Decay width of the Theta+ has been estimated to be ~ 11 MeV using effective diquark theory. The radius of the Xi--3/2 has been extracted as 0.94fm using the experimental value of the fracΓΘ+ΓΞ--3/2. The results obtained are found to be in good agreement with the present experimental and theoretical suggestions.

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