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Anomalous Radiative Decay of Heavy Higgs Boson
Abstract
The radiative decay width of a heavy Higgs boson for a {\it hard} photon is calculated in the Standard Model and its extension with anomalous couplings. Its dependence on the Higgs mass, the two unknown anomalous couplings, and the photon energy cutoff are studied in detail. We show that this radiative decay of a heavy Higgs is not very sensitive to a wide range of the anomalous couplings compared to the Standard Model result.
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The result of C SM in Eq.(A2) agrees with Ref.[1]. However, the formula of C SM given in
Ref.[1] is only semi-analytic since the integral A 1 was evaluated using the mean valued
theorem in calculus. We have checked their semi-analytic result agrees well with our
analytic result using Eq.(A6) of A 1.
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