Lowenergy impact of a heavy Higgs boson sector
Abstract
The effective theory which characterizes the lowenergy sensitivity of the minimal WeinbergSalam model to a heavy Higgs boson sector is shown to be the gauged SU(2) _{L} × U(1) nonlinear θ model. This theory is the limit of the WeinbergSalam model as the Higgs boson mass, M_{H}, is removed ( M_{H} → ∞). Using the symmetry properties of the nonlinear theory, along with a powercounting analysis, we are able to classify lowenergy observables according to their sensitivity to the regulator ( M_{H}). At one loop, the greatest sensitivity is a logarithmic dependence on the Higgs boson mass. The M_{H} dependent corrections to some specific, experimentally accessible observables are calculated, and other possible applications of this technique are discussed.
 Publication:

Nuclear Physics B
 Pub Date:
 September 1981
 DOI:
 10.1016/05503213(81)901097
 Bibcode:
 1981NuPhB.188..118L