Thomas, A. W.Krein, G. [UNESP]2014-05-272014-05-271999-12-01Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, v. 456, n. 1, p. 5-8, 1999.0370-2693http://hdl.handle.net/11449/65912We 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. © 1999 Published by Elsevier Science B.V. All rights reserved.5-8engChiral symmetryHadron spectrumPotential modelsQuark modelArtigo10.1016/S0370-2693(99)00455-4WOS:000080922500002Acesso restrito2-s2.0-0002426934