A pentaquark model for Lambda(1405)

Details A pentaquark model for Lambda(1405) A pentaquark model for Lambda(1405)

2006-11-04

arxiv.org/abs/hep-ph/0611051v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, 2 figures, espcrc1, Proceedings of the 18th International IUPAP Conference on Few-Body Problems in Physics, FB18, hel

Scientific paper

10.1016/j.nuclphysa.2007.03.172

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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