1994/01/28 by I. Jack, D. R. T. Jones, K. L. Roberts · 1 citation
Physics and Astronomy · #hep-ph
paper · pdf · doi:10.1007/bf01577555
published as Z.Phys. C63 (1994) 151-160 · 17 pages, LTH 329. Uses Harvmac
arxiv created 1994/01/28 · arxiv updated 2009/11/30
For some years there has been uncertainty over whether regularisation by dimensional reduction (DRED) is viable for non-supersymmetric theories. We resolve this issue by showing that DRED is entirely equivalent to standard dimensional regularisation (DREG), to all orders in perturbation theory and for a general renormalisable theory. The two regularisation schemes are related by an analytic redefinition of the couplings, under which the \b-functions calculated using DRED transform into those computed in DREG. The S-matrix calculated using DRED is numerically equal to the DREG version, ensuring that both schemes give the same physics.