Topological Susceptibility in SU(3) Gauge Theory
Abstract
We compute the topological susceptibility for the SU(3) Yang-Mills theory by employing the expression of the topological charge density operator suggested by Neuberger's fermions. In the continuum limit we find r40χ=0.059(3), which corresponds to χ=(191±5 MeV)4 if FK is used to set the scale. Our result supports the Witten-Veneziano explanation for the large mass of the η'.
- Publication:
-
Physical Review Letters
- Pub Date:
- January 2005
- DOI:
- 10.1103/PhysRevLett.94.032003
- arXiv:
- arXiv:hep-th/0407052
- Bibcode:
- 2005PhRvL..94c2003D
- Keywords:
-
- 11.15.Ha;
- 11.10.Gh;
- 11.30.Rd;
- 12.38.Gc;
- Lattice gauge theory;
- Renormalization;
- Chiral symmetries;
- Lattice QCD calculations;
- High Energy Physics - Lattice;
- High Energy Physics - Theory
- E-Print:
- Final version to appear on Phys. Rev. Lett