Slope of the topological susceptibility at zero temperature and finite temperature in the Nambu-Jona-Lasinio model

Authors
Fukushima, K Ohnishi, K Ohta, K
Citation
K. Fukushima et al., Slope of the topological susceptibility at zero temperature and finite temperature in the Nambu-Jona-Lasinio model, PHYS LETT B, 514(1-2), 2001, pp. 200-203
Citations number
17
Categorie Soggetti
Physics
Journal title
PHYSICS LETTERS B
ISSN journal
03702693 → ACNP
Volume
514
Issue
1-2
Year of publication
2001
Pages
200 - 203
Database
ISI
SICI code
0370-2693(20010809)514:1-2<200:SOTTSA>2.0.ZU;2-Q
Abstract
We estimate the slope of the topological susceptibility in the three flavou r Nambu-Jona-Lasinio model with the 't Hooft interaction. The results are c onsistent with the evaluation from the QCD sum rule in favour of the full t opological susceptibility. We apply it to the Shore-Veneziano formula to fi nd that it shows satisfactory agreement with the anomalous suppression of t he flavour-singlet axial charge. The behaviour at finite temperature is als o discussed. (C) 2001 Elsevier Science B.V. All rights reserved.