Pair production of charged Higgs bosons in gluon-gluon collisions

We studied the pair production rate of charged Higgs bosons via gluon-gluon collisions in the general two-Higgs-doublet model. The analysis of its production are made with possible parameter values of Higgs sectors in this model. We find that the production cross sections may be 4 to 41 fermi-bar in the future LHC pp collider with these parameters. The calculation also shows that this pair production process is not sensitive to the neutral Higgs masses, therefore its measurment could not give more imformations about the neutral Higgs bosons.