Electroweak radiative corrections to single Higgs-boson production in e+e- annihilation

We have calculated the complete electroweak O(alpha) radiative corrections to the single Higgs-boson production processes e(+)e(-) --> v(l)(v(l)) over barH (l = e, mu, tau) in the electroweak Standard Model. Initial-state radiation beyond O(alpha) is included in the structure-function. approach. The calculation of the corrections is briefly described, and numerical results are presented for the total cross-section. In the G(mu) scheme, the bulk of the corrections is due to initial-state radiation, which affects the cross-section at the level of -7%. at high energies and even more in the ZH threshold region. The remaining bosonic and fermionic corrections are at the level of a few percent. The confusing situation in the literature regarding differing results for the fermionic corrections to this process is clarified. (C) 2003 Published by Elsevier Science B.V.