Title of article :
Chiral corrections in hadron spectroscopy
Author/Authors :
A.W. Thomas، نويسنده , , G. Krein، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 1999
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 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.
Keywords :
Chiral symmetry , Quark model , Hadron spectrum , Potential models
Journal title :
PHYSICS LETTERS B
Journal title :
PHYSICS LETTERS B