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On the weekend of 6th & 7th November the LHC beam was injected and arrived near the CMS experiment, before being "stopped" by a large amount of material known as a "collimator". The interaction of the protons with the dense material produced "splashes" of secondary particles that travelled several hundred metres and passed through the CMS detector. A majority of the sub-detectors were operational so saw these so-called "splash" events.

You can recall the excitement of the weekend in three ways: