Abstract
We search for a systematic way to characterize the low-energy sensitivity of the minimal Weinberg-Salam model to a heavy-Higgs-boson sector. We find that it is convenient to view this theory as the regulated version of a nonlinear model coupled to an Yang-Mills theory. Within this framework, acts as the regulator. Using the symmetry properties of the nonlinear theory, along with a power-counting analysis, we are able to classify low-energy observables according to their sensitivity to . We find that, at one loop, the greatest sensitivity is logarithmic. An illustration of these ideas is provided by a calculation of the one-loop, -dependent corrections to the natural relation . Finally, we discuss other possible applications of this technique.
- Received 6 March 1980
DOI:https://doi.org/10.1103/PhysRevD.22.1166
©1980 American Physical Society