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On some properties of Exotic Baryons in Quasi particle diquark model

A. Bhattacharya·B. Chakrabarti·S. Mani·S. N. Banerjee
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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 frac{Γ_{Θ^{+}}}{Γ_{Ξ^{--}_{3/2}}}. The results obtained are found to be in good agreement with the present experimental and theoretical suggestions.

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A. Bhattacharya, B. Chakrabarti, S. Mani, S. N. Banerjee. 2006-11-29. On some properties of Exotic Baryons in Quasi particle diquark model. https://arxiv.org/abs/hep-ph/0611367

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