QCD Corrections to the Light Higgs Boson Decay into a Charm- Anticharm or Bottom- Antibottom Pair within the Minimal Supersymmetric Model

摘要

We present the results of the contributions to the decay rate of the lightestHiggs particle into a charm-anticharm and bottom-antibottom pair within theminimal supersymmetric standard model when scalar quarks and a gluino are takenwithin the relevant loop diagrams. We show that in the case where the vacuumexpectation values of the Higgs particles obey the condition $v_1\ll v_2$\ thescalar quarks and gluino change the decay rate by not more than a few per cent.These small contributions make it difficult to distinguish the Higgs particleof the standard model from the supersymmetric one.