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We consider radiative corrections to the decay rate $\Gamma(H\rightarrow ZZ)$of the heavy {\it CP}-even Higgs boson of the minimal supersymmetric model totwo $Z$ bosons. We perform a one loop Feynman diagram calculation in theon-mass-shell renormalization scheme, and include the third generation ofquarks and squarks. The tree level rate is suppressed by a mixing angle factorand decreases as $1/M_H$ for large $M_H$. The corrected rate overcomes thissuppression and increases with $M_H$ for $M_H > 500$~GeV. The corrections canbe very large and depend in detail on the top squark masses and $A$-term, aswell as the supersymmetric Higgs mass parameter $\mu$.Comment: 22 pages, 9 figures available from authors, UCB-PTH-92/23 and  LBL-3249

physical review. d. particles, fields, gravitation, and cosmology/physical review. d. particles and fields

Radiative corrections to the Higgs-boson decay rate<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>Γ</mml:mi><mml:mo>(</mml:mo><mml:mi>H</mml:mi><mml:mo>→</mml:mo><mml:mi>Z</mml:mi><mml:mi>Z</mml:mi><mml:mo>)</mml:mo></mml:math>in the minimal supersymmetric model

Radiative corrections to the Higgs-boson decay rateΓ(H→ZZ)in the minimal supersymmetric model