Chiral Soliton Model vs Pentaquark Structure for Θ(1540)

Details Chiral Soliton Model vs Pentaquark Structure for Θ(1540) Chiral Soliton Model vs Pentaquark Structure for Θ(1540)

2004-11-08

arxiv.org/abs/hep-ph/0411103v3

Pramana 65:381-392,2005

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages, references added, final published version

Scientific paper

10.1007/BF02704197

The exotic baryon $\Theta^+$ (1540 MeV)$ is visualised as an expected (iso) rotational excitation in the Chiral Soliton Model. It is also argued as a Pentaquark baryon state in a constituent quark model with strong diquark correlations. I contrast the two points of view; the similarities and differences between the two pictures. Collective excitation, characteristic of Chiral Soliton Model points toward small mixing of representations in the wake of SU(3) breaking. In contrast, Constituent quark Models prefer near ``ideal'' mixing, similar to $\omega - \phi$ mixing.

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