Squark loop corrections to the charged Higgs boson pair production in photon-photon collisions

We calculate the squark one-loop corrections to the cross sections of charged Higgs boson pair production in photon-photon collisions in the minimal supersymmetric extension of the standard model. In general, in the case of a large splitting in the masses of the left-top squark and the right-top squark and for tan beta near 1.5, the corrections can reduce the cross sections by more than 10% for a wide range of the charged Higgs boson mass, depending on the e(+)e(-) center-of-mass energy. But in other cases, the corrections are at most only a few percent. Those corrections can be comparable to the O(alpha m(t)(2)/m(W)(2)) Yukawa corrections in the previous literature. [S0556-2821(98)04415-4]