Full one-loop electroweak corrections to the charged Higgs decays into a chargino and neutralino in the MSSM

We calculate the full one-loop electroweak (FEW) corrections to H-->(chi) over tilde (0)(i)(chi) over tilde (-)(1) in the minimal supersymmetric standard model (MSSM), and compare with the leading order (LO) corrections including the loops of the (s)quarks only in the third generation and the complete leading order (CLO) corrections including the loops of the (s)quarks in all three generations. We find that the magnitudes of the FEW corrections can be larger than 10% for tan beta > 30. Moreover, comparing with the FEW corrections, both of the LO and the CLO corrections are negligibly small for mode 1 (H-->(chi) over tilde (0)(1)(chi) over tilde (-)(1)) when tan beta < 5, and for mode 2 (H-->(chi) over tilde (0)(2)(chi) over tilde (-)(1)) when tan beta > 45, respectively, since there are not enhancements from the Yukawa couplings. We also calculate the FEW corrections in the minimal supergravity scenario, where the FEW corrections can be larger than the LO and the CLO corrections by more than 60% and 50%, respectively.