There are many indirect and direct experimental indications that the new particle H discovered by the ATLAS and CMS Collaborations has spin zero and (mostly) positive parity, and that its couplings to other particles are correlated with their masses. Beyond any reasonable doubt, it is a Higgs boson, and here we examine the extent to which its couplings resemble those of the single Higgs boson of the Standard Model. Our global analysis of its couplings to fermions and massive bosons determines that they have the same relative sign as in the Standard Model. We also show directly that these couplings are highly consistent with a dependence on particle masses that is linear to within a few %, and scaled by the conventional electroweak symmetry-breaking scale to within 10%. We also give constraints on loop-induced couplings, on the total Higgs decay width, and on possible invisible decays of the Higgs boson under various assumptions. . .
The data now impose severe constraints on composite alternatives to the elementary Higgs boson of the Standard Model. However, they do not yet challenge the predictions of supersymmetric models, which typically make predictions much closer to the Standard Model values.
From here.
[They find] "the combined Higgs signal strength to be very close to the Standard Model value: mu equals 1.02 +0.11-0.12." The best fit of the data's decay with is almost the same (i.e. a plus or minus one one sigma confidence interval of about 3.7 MeV to 4.5 MeV).
The best experimental fit to the Higgs vacuum expectation valuem which is theoretically 246.22 GeV in the Standard Model, is currently 244 +20-10 GeV.
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