Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2004-06-08
Nucl.Phys. B704 (2005) 75-110
Physics
High Energy Physics
High Energy Physics - Phenomenology
40 pages, 1 Postscript figure, 12 eps figures, uses subeqn.sty
Scientific paper
10.1016/j.nuclphysb.2004.10.009
We study the renormalization of the nonlinear realization of the SU(2) Higgs model in the modified minimal subtraction renormalization scheme. We propose that the effective field method with truncated operator series is trustworthy even when the Higgs boson is relatively light. Using the technique of background field method in the coordinate space, we derive the matching conditions at tree and one loop order, both in the regions where the Higgs boson is heavy and where it is light. We obtain the complete one-loop anomalous couplings up to ${\Large O} (p^4)$ in the SU(2) Higgs model. We observe that the contribution of the gauge bosons and the Goldstone bosons to the anomalous couplings at the one-loop level is significant. By establishing the correspondence between our coordinate space calculation and the momentum space calculation that exists in the literature, we find agreement in all the matching conditions in the heavy Higgs boson limit.
Dutta Sukanta
Hagiwara Kaoru
Yan Qi-Shu
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