The Higgs self-coupling is still a missing piece in the Standard Model
puzzle. Although its theoretical value can be extracted from its
relation to the mass of the Higgs and the Fermi constant, its
measurement via double Higgs production is particularly challenging. We
explore the possibility of probing an anomalous trilinear coupling
indirectly, through the production and decay of a single Higgs boson.
Indeed, although these processes do not depend on this coupling at tree
level, they are sensitive to the Higgs self-coupling at NLO. This gives
us the opportunity to derive current and possible future constraints on
the trilinear coupling from precise measurements of various observables
of the different single Higgs production channels.
The talk will be based on the results of arXiv:1607.04251.
