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A pentaquark model for Lambda(1405)

Takahi Inoue
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Abstract

We study a pentaquark model of the negative parity hyperon Lambda(1405). We choose a specific quark configuration for trial, and use the perturbative chiral quark model extended to four quarks and one anti-quark system. We calculate a sigma-term and a scalar form factor of the hyperon and demonstrate their usefulness to study the nature of the hyperon.

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Takahi Inoue. 2006-11-04. A pentaquark model for Lambda(1405). https://doi.org/10.1016/j.nuclphysa.2007.03.172

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