  We study the indirect effects of new physics on the phenomenology of the
"Higgs-like" particle. Assuming that the recently observed state belongs to a
light electroweak doublet scalar and that the SU(2)_L x U(1)_Y symmetry is
linearly realized, we parametrize these effects in terms of an effective
Lagrangian at the electroweak scale. We choose the dimension--six operator
basis which allows us to make better use of all the available data to constrain
the coefficients of the dimension-six operators. We perform a global
6--parameter fit which allows simultaneous determination of the standard model
scalar couplings to gluons, electroweak gauge bosons, bottom quarks, and tau
leptons. The results are based on the data released at Moriond 2013. Moreover,
our formalism leads to strong constraints on the electroweak triple gauge boson
couplings. Note added: The analysis has been updated with a NEW GLOBAL
6-PARAMETER FIT with all the public data available after Moriond 2013. Updates
of this analysis are provided at the website http://hep.if.usp.br/Higgs, as
well as new versions of the manuscript.
