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 r_0^4 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'.
Original language | English |
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Number of pages | 4 |
Journal | Physical Review Letters |
Volume | 94 |
Issue number | 3 |
DOIs | |
Publication status | Published - 7 Jul 2004 |
Keywords / Materials (for Non-textual outputs)
- hep-th
- hep-lat