Topological susceptibility in SU(3) gauge theory.
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 r(4)(0)chi = 0.059(3), which corresponds to chi = (191 +/- 5 MeV)(4) if F(K) is used to set the scale. Our result supports the Witten-Veneziano explanation for the large mass of the eta(').
Del Debbio
Luigi
L
Department of Physics, TH Division, CERN, CH-1211 Geneva 23, Switzerland.
Giusti
Leonardo
L
Pica
Claudio
C