Jester wrote a satirical essay,
When shall we call it Higgs?
that I fully subscribe to. The ATLAS and CMS papers – and some media and theoretical papers inspired by them – keep on referring to the particle officially discovered on July 4th, 2012 as "the 125 GeV particle", "the scalar boson", or – most often – as the "Higgs-like boson".
But it's been quacking like a duck for quite some time. Moreover, from a theoretical perspective, it looks pretty much inevitable that a Higgs boson has to be there because the probabilities of the longitudinal W-bosons' scattering could otherwise exceed 100 percent at energies near a TeV. While we have 5-sigma known that there was a new particle around 126 GeV for half a year if not more than a year, we weren't sure whether its properties exactly agreed with what is required from a Higgs boson. Well, we will never be sure. In fact, we are sure that the properties won't exactly agree with those envisioned by any particular known theory.
It's still a Higgs boson. We're not saying it's exactly the Standard Model Higgs boson – note that the Standard Model is absent in the previous sentence – but it is a Higgs boson and as long as it is the only known one, we may also call it "the Higgs boson" (don't forget that as a linguistic Slav, I am no expert in "the" and "an", whether they are particles or articles, I don't even know how to call these bastards). Papers have shown that it must be a scalar, not a pseudoscalar, at a rather high confidence level. It is a boson i.e. a particle with integer spin. And the spin one is prohibited by the Landau theorem.
The Universe when it was 380,000 years old (via Planck)
High-\(\ell\) variations as well as polarization measurements support the standard ΛCDM theory impressively, too. The theory seems to overestimate \(20\leq\ell\leq 40\) modes; the total discrepancy may be just 2.5 sigma, however. Pure scalar invariance \(n=1\) is already excluded at 5.4 sigma: \(n\lt 1\). See an image summarizing the paper on cosmological parameters. Non-gaussianities, \(f^{NL}=2.7\pm 5.8\), and altered complex inflationary models are being strongly constrained. More conclusions.