Two-loop large Higgs mass corrections to electroweak gauge boson quartic couplings

Details Two-loop large Higgs mass corrections to electroweak gauge boson quartic couplings Two-loop large Higgs mass corrections to electroweak gauge boson quartic couplings

1997-12-17

arxiv.org/abs/hep-ph/9712419v2

Nucl.Phys. B520 (1998) 31-50

Physics

High Energy Physics

High Energy Physics - Phenomenology

18 pages, 5 Postscript figures, uses epsfig.sty

Scientific paper

10.1016/S0550-3213(98)00200-4

The two-loop corrections to the electroweak gauge bosons quartic couplings growing quadratically with the Higgs boson mass are calculated in the Standard Model in the limit of large Higgs mass. The corrections to WWWW, WWZZ and ZZZZ four-vertices are found to be an order of magnitude larger than the two-loop m_H^2 corrections to light fermion and triple gauge boson vertices. For a heavy Higgs boson with a mass around 1 TeV the corrections are at the several percent level and in principle could be observed experimentally.

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