In this paper we describe the implementation of the complete next-to-leading order electroweak calculations for the various
cross channels of the process f
1f̄
1HA→0 in the framework of the SANC system. Here A stands for a photon and f
1 for a fermion whose mass is neglected everywhere besides arguments of logarithmic functions. The symbol →0 means that all
4-momenta of the external particles flow inwards. The derived one-loop scalar form factors can be used for any cross channel
after an appropriate permutation of their arguments s,t,u. We present the complete analytical results for the covariant and
helicity amplitudes for three cross channels: f
1f̄
1→Hγ, H→f
1f̄
1γ and f
1γ→f
1H. For checking of the correctness of the results first of all we observe the independence of the scalar form factors on the
gauge parameters and the validity of the Ward identity (external photon transversality), and, secondly, we make an extensive
comparison of our numerical results with other independent calculations.
PACS 12.15.-y; 12.15.Lk