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by sgt101 2995 days ago
It's worse ! The data for the Higgs can't be published because... it was destroyed!

The aggregate, processed signals are all that is retained in the LHC, the raw data was gone before it could be analysed.

Also they used a bloody hokey boosted classifier for the detection but that's bye the bye now apparently. And there were 12 events out of about 1 trillion, so all good there too...

2 comments

That is not true, at least for CMS. All the RAW data taken in pp collisions during 2011 and 2012 - ie the Higgs boson discovery dataset - has been saved in tape. As a general rule, we never delete RAW collision data that actually make it into permanent storage. Of course, data that didn't pass the real-time selection to be recorded in the first place is irrevocably lost.
So all the data apart from the data that was thrown away?
Also very true. Unfortunately this data is dirty, context dependent, or plain missing. This is true of pretty much any "real" experiment.