Monte Carlo analysis of the Λparameter 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 Λ_{3/2} = (0.0015 +/ 0.0002)sqrt(σ). The weak coupling prediction for the ratio with the ΛManton is also presented. We obtain a qualitative and quantitative agreement with this theoretical prediction.
 Publication:

Physics Letters B
 Pub Date:
 December 1984
 DOI:
 10.1016/03702693(84)904295
 Bibcode:
 1984PhLB..149..387B