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The Importance and Challenges of “Open Data” at the Large Hadron Collider

19 Mar 2019, 13:35 UTC
The Importance and Challenges of “Open Data” at the Large Hadron Collider
(200 words excerpt, click title or image to see full post)

A little while back I wrote a short post about some research that some colleagues and I did using “open data” from the Large Hadron Collider [LHC]. We used data made public by the CMS experimental collaboration — about 1% of their current data — to search for a new particle, using a couple of twists (as proposed over 10 years ago) on a standard technique. (CMS is one of the two general-purpose particle detectors at the LHC; the other is called ATLAS.) We had two motivations: (1) Even if we didn’t find a new particle, we wanted to prove that our search method was effective; and (2) we wanted to stress-test the CMS Open Data framework, to assure it really does provide all the information needed for a search for something unknown.
Recently I discussed (1), and today I want to address (2): to convey why open data from the LHC is useful but controversial, and why we felt it was important, as theoretical physicists (i.e. people who perform particle physics calculations, but do not build and run the actual experiments), to do something with it that is usually the purview of experimenters.
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