  The processes involving a Higgs boson, a photon(gluon) and a fermion pair
pose severe challenges to the experimental analysis. They represent rare decays
and production mechanisms of the Higgs boson at LHC. However, they are not
Yukawa suppressed at next-to-leading order opening a window for the correct
definition of pseudo-observables, e.g. a definition of the Higgs decay width
into Z + photon with universal inherent meaning, that are currently used in
extracting information for the couplings of the newly discovered resonance at
LHC. The impact of genuinely electroweak NLO corrections is discussed, as well
as the comparison of the full-fledged cross-sections to their zero-width
approximation.
