Chiral corrections in hadron spectroscopy

Details Chiral corrections in hadron spectroscopy Chiral corrections in hadron spectroscopy

1999-02-05

arxiv.org/abs/nucl-th/9902013v2

Phys.Lett.B456:5-8,1999

Physics

Nuclear Physics

Nuclear Theory

7 pages, latex, 1 eps figure, version to appear in Phys. Lett. B

Scientific paper

10.1016/S0370-2693(99)00455-4

We show that the implementation of chiral symmetry in recent studies of the hadron spectrum in the context of the constituent quark model is inconsistent with chiral perturbation theory. In particular, we show that the leading nonanalytic (LNA) contributions to the hadron masses are incorrect in such approaches. The failure to implement the correct chiral behaviour of QCD results in incorrect systematics for the corrections to the masses.

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