eta ' mass and chiral symmetry breaking at large N-c and N-f

Authors
Girlanda, L Stern, J Talavera, P
Citation
L. Girlanda et al., eta ' mass and chiral symmetry breaking at large N-c and N-f, PHYS REV L, 86(26), 2001, pp. 5858-5861
Citations number
20
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
00319007 → ACNP
Volume
86
Issue
26
Year of publication
2001
Pages
5858 - 5861
Database
ISI
SICI code
0031-9007(20010625)86:26<5858:E'MACS>2.0.ZU;2-L
Abstract
We propose a method for implementing the large-N-c, large-N-f limit of QCD at the effective Lagrangian level. Depending on the value of the ratio N-f/ N-c, different patterns of chiral symmetry breaking can arise, leading in p articular to different behaviors of the eta ' mass in the combined large-N limit.