Chiral corrections in hadron spectroscopy

Citation
Aw. Thomas et G. Krein, Chiral corrections in hadron spectroscopy, PHYS LETT B, 456(1), 1999, pp. 5-8
Citations number
30
Categorie Soggetti
Physics
Journal title
PHYSICS LETTERS B
ISSN journal
03702693 → ACNP
Volume
456
Issue
1
Year of publication
1999
Pages
5 - 8
Database
ISI
SICI code
0370-2693(19990603)456:1<5:CCIHS>2.0.ZU;2-O
Abstract
We show that the implementation of chiral symmetry in recent studies of the hadron spectrum in the context of the constituent quark model is inconsist ent with chiral perturbation theory. In particular, we show that the leadin g nonanalytic (LNA) contributions to the hadron masses are incorrect in suc h approaches. The failure to implement the correct chiral behaviour of QCD results in incorrect systematics for the corrections to the masses. (C) 199 9 Published by Elsevier Science B.V. All rights reserved.