Monte Carlo analysis of the Λ-parameter in an SU(2) lattice gauge theory with a mixed action
Abstract
We have determined the asymptotic freedom Λ parameter by Monte Carlo simulations in an SU(2) lattice gauge theory with an action mixture of the fundamental and the spin 3/2 representations. The value obtained is Λ3/2 = (0.0015 +/- 0.0002)sqrt(σ). The weak coupling prediction for the ratio with the Λ-Manton is also presented. We obtain a qualitative and quantitative agreement with this theoretical prediction.
- Publication:
-
Physics Letters B
- Pub Date:
- December 1984
- DOI:
- 10.1016/0370-2693(84)90429-5
- Bibcode:
- 1984PhLB..149..387B