Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2002-11-20
Phys.Lett. B558 (2003) 157-164
Physics
High Energy Physics
High Energy Physics - Phenomenology
added comments and references, corrected typos, to appear in Physics Letters B, revtex4, 13 pages including 3 figures
Scientific paper
10.1016/S0370-2693(03)00268-5
One-loop corrections to the self-coupling constant of the lightest CP-even Higgs boson are studied in the two Higgs doublet model. After renormalization is performed, quartic contributions of heavy particle's mass can appear in the effective coupling. We find that these non-decoupling effects can yield ${\cal O}(100)$ % deviations from the Standard Model prediction, even when all the other couplings of the lightest Higgs boson to gauge bosons and fermions are in good agreement with the Standard Model.
Kanemura Shinya
Kiyoura Shingo
Okada Yasuhiro
Senaha Eibun
Yuan C.--P.
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