ATLAS this weekend has finally released their latest analysis of the gamma-gamma invariant mass spectrum, carried out in response to claims from within their collaboration that a 4 sigma Higgs signal had been observed in this channel. The result? Nada:
The dominant background components are measured and found to be in agreement with the Standard Model predictions, both in terms of overall yield and invariant mass distribution. No excess is observed.
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Oh dear. What would happen if it took > 1y to do the full analysis to say the rumour was unfounded and there was no excess beyond SM? There would be a dozen published PRL, all the way from MSSM to ‘rigorous evidence of the existence of the Multiverse’. It’s a nuthouse.