Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2006-12-11
Nucl.Phys.B777:100-156,2007
Physics
High Energy Physics
High Energy Physics - Phenomenology
52 pages, LaTeX, 24 figures, uses axodraw.sty
Scientific paper
10.1016/j.nuclphysb.2007.04.027
In part I and II of this series of papers all elements have been introduced to extend, to two loops, the set of renormalization procedures which are needed in describing the properties of a spontaneously broken gauge theory. In this paper, the final step is undertaken and finite renormalization is discussed. Two-loop renormalization equations are introduced and their solutions discussed within the context of the minimal standard model of fundamental interactions. These equations relate renormalized Lagrangian parameters (couplings and masses) to some input parameter set containing physical (pseudo-)observables. Complex poles for unstable gauge and Higgs bosons are used and a consistent setup is constructed for extending the predictivity of the theory from the Lep1 Z-boson scale (or the Lep2 WW scale) to regions of interest for LHC and ILC physics.
Actis Stefano
Passarino Giampiero
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