Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
1993-09-24
Phys.Lett. B318 (1993) 617-622
Physics
High Energy Physics
High Energy Physics - Theory
8 pages, Latex
Scientific paper
10.1016/0370-2693(93)90463-R
The autonomous renormalization of the O(N)-symmetric scalar theory is based on an infinite re-scaling of constant fields, whereas finite-momentum modes remain finite. The natural framework for a detailed analysis of this method is a system of finite size, where all non-constant modes can be integrated out perturbatively and the constant mode is treated by a saddle-point approximation in the thermodynamic limit. The calculation provides a better understanding of the properties of of the effective action and corroborates earlier findings concerning a heavy Higgs particle at about 2 TeV.
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