The CMS data on the Higgs in the gamma-gamma channel has been released this morning, see slides from a talk at Moriond. Basically the excess over the SM prediction seen in this channel in earlier data is gone, with CMS reporting ratios to the SM predicted value of .78 +/- .27 using one sort of analysis, 1.11 +/- .31 using another, so, naively averaging, say .95. ATLAS sees 1.65, so a naive combination would give 1.3, only about one sigma high, very consistent with the SM.
Amusingly, the better than 4 sigma signal CMS was advertising last summer in this channel that was part of the case for the discovery announcement has largely vanished in the new 8 TeV data. With one analysis method, they see only a 2 sigma signal in the 8 TeV data. If they had been working with this new, larger and better, data set instead of the older, smaller 7 TeV data set, the Higgs discovery claims might not have been possible last summer. Of course, the CMS + ATLAS combined gamma-gamma results are very strong evidence for a Higgs signal, and the ZZ results are overwhelming, so the existence of a new particle is not in doubt. This is actually what you expect if a SM Higgs is there: you should get reversion to the mean and disappearance of the earlier too large observed excesses.
CERN has a press release out today which is getting a log of attention, headlined
New results indicate that particle discovered at CERN is a Higgs boson. This emphasizes results about the spin, but the new gamma-gamma results are what is significant, as they remove the one anomaly that was getting a lot of attention from theorists hoping for some kind of violation of SM behavior.
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