Higgs boson decay into Z bosons and a photon

Details Higgs boson decay into Z bosons and a photon Higgs boson decay into Z bosons and a photon

2006-02-09

arxiv.org/abs/hep-ph/0602087v2

JHEP 0608 (2006) 048

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, 5 figures, RevTeX, figures corrected

Scientific paper

10.1088/1126-6708/2006/08/048

We have performed a one-loop calculation of the width of the rare decay H -> Z Z \gamma in the standard model for Higgs boson masses 190 GeV \leq m_H \leq 250 GeV. We find that the most dominant helicity combinations for the Z bosons and the photon is when one of the Z bosons is longitudinally polarized and the other Z boson and the photon have the same helicity. A comparison of the decay width \Gamma(H->Z Z \gamma) to those of H->\gamma \gamma and H->\gamma Z shows that the ratios of the decay widths are \Gamma(H->Z Z \gamma) / \Gamma(H->\gamma\gamma) ~ \Gamma(H->Z Z \gamma) / \Gamma(H->\gamma Z) ~ 10^{-7}.

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