摘要: It is shown that amplitudes of certain low-energy processes with a light Higgs boson such as the decays eta' -> etaH PSI' -> PSIH, UPSILON' -> UPSILONH, H -> gamma gamma are determined by properties of the trace of the energy mome... 展开 It is shown that amplitudes of certain low-energy processes with a light Higgs boson such as the decays eta' -> etaH PSI' -> PSIH, UPSILON' -> UPSILONH, H -> gamma gamma are determined by properties of the trace of the energy momentum tensor. In this analysis an important role is played by the trace anomaly. When the latter is taken into account the predictions for the decay rates are significantly modified with respect to those existing in the literature. In particular the rates of eta' -> etaH and H -> gamma gamma come out suppressed while for the widths of the transitions PSI' -> PSIH, UPSILON' -> UPSILONH experimentally testable predictions are derived. 29 refs.; 2 figs. (Atomindex citation 18:097250) 收起