Charged Higgs boson pair production via gluon-gluon collisions in MSSM with CP violation

The CP-violating effects to the subprocess gg --> H+H- are studied in the m SUGRA scenario at the CERN large hadron collider, by taking into account th e experimental bounds of electron and neutron electric dipole moments. The CP-violating effects in this process are related to the complex phases of m u and A(f) in the mSUGRA scenario. In our calculation we consider small CP phases of mu and A(f) and neglect the effects of neutral Higgs boson mixing . In this case the CP effects to the process mainly come from the complex c ouplings of Higgs-squark-squark. We find a strong dependence of charged Hig gs boson pair production rate on the complex couplings in the parameter spa ce of minimal supersymmetric standard model.