We investigate the supersymmetric electroweak corrections to the decay widths
of the CP-odd and the heavy CP-even Higgs bosons into chargino or neutralino
pair in the framework of the Minimal Supersymmetric Standard Model. The
corrections involve the contributions of the order O(αewmt(b)3/mW3), O(αewmt(b)2/mW2) and O(αewmt(b)/mW). The detailed calculations of the electroweak corrections to the
following decay processes: A0/H0→χ~1+χ~1− and
A0/H0→χ~20χ~20 are presented in this paper. We
find that these relative corrections maybe rather large quantitatively, and can
exceed 10% in some regions of parameter space. The corrections to the decay
A0/H0→χ~10χ~20 can be obtained analogously,
but our results show that they are very small and can be neglected.Comment: 25 pages, 9 figures,accepted by Physical Review