Chiral corrections in hadron spectroscopy
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Data
1999-12-01
Autores
Thomas, A. W.
Krein, G. [UNESP]
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Resumo
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. © 1999 Published by Elsevier Science B.V. All rights reserved.
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Chiral symmetry, Hadron spectrum, Potential models, Quark model
Como citar
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, v. 456, n. 1, p. 5-8, 1999.