Uncertainties in Coupling Constant Unification
read the original abstract
The status of coupling constant unification in the standard model and its supersymmetric extension are discussed. Uncertainties associated with the input coupling constants, $m_{t}$, threshold corrections at the low and high scales, and possible nonrenormalizable operators are parametrized and estimated. A simple parametrization of a general supersymmetric new particle spectrum is given. It is shown that an effective scale $M_{SUSY}$ can be defined, but for a realistic spectrum it may differ considerably from the typical new particle masses. The implications of the lower (higher) values of $\alpha_{s}(M_{Z})$ suggested by low-energy ($Z$-pole) experiments are discussed.
This paper has not been read by Pith yet.
Forward citations
Cited by 2 Pith papers
-
The Standard Model partial unification scale as a guide to new physics model building
The Standard Model partial unification scale of non-Abelian gauge couplings at 2.8e16 GeV serves as the natural full unification scale M_X for new physics models where corrections to those couplings are equal or nearly equal.
-
The infrared or ultraviolet scale for a gauge theory
A conjecture determines the divergence scale of any gauge theory via comparison to a known theory in the same volume and identifies SO(10) as the sole viable supersymmetric GUT.
discussion (0)
Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.