ar X iv : h ep - p h / 04 11 15 2 v 1 1 0 N ov 2 00 4 A note on the
نویسنده
چکیده
We have calculated the width of the rare decay H → γγZ at one-loop level in the standard model for Higgs boson masses in the range 115GeV ≤ mH ≤ 160GeV . For this range of Higgs boson masses we find that Z boson is predominantly longitudinally polarized, and the photons have the same helicity. A comparison of the decay width Γ(H → γγZ) to those of H → γγ and H → γZ shows that, for the Higgs boson mass of mH ∼ 135GeV, the ratios of the decay widths are Γ(H → γγZ)/Γ(H → γγ) ∼ Γ(H → γγZ)/Γ(H → γZ) ∼ 10 − 10.
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