One-loop corrections to neutral Higgs boson decays into neutralinos Original Research Article

We present the one-loop corrected decay widths for the decays of the neutral Higgs bosons h0, H0 and A0 into a neutralino pair χ̃0mχ̃0n (m,n=1,…,4) and to the decay χ̃0m→(h0,H0,A0)+χ̃0n. The corrections contain the one-loop contributions of all fermions and sfermions. All parameters are taken on-shell. This requires a proper treatment of the neutralino mass and mixing matrix. The dependence on the SUSY parameters is discussed. The corrections can be large in certain regions of the parameter space.