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2012
It is built from checkable properties of the record itself: whether the article has a DOI, how many independent sources confirmed its data, whether the required fields are filled in, and how recent the latest confirmation is. Disagreement between sources and a missing identifier lower it. A value of 80 or above means the record was published without further checking; 60 to 79 means it is published at reduced confidence, with a manual check advisable. A record verified by an editor by hand is never pushed below 90 by a recalculation. This scores our data about the article, not the article itself.
An analysis of experimental information that comes from cosmic-ray studies and from accelerator experiments leads to the conclusion that the production of new particles is not an instantaneous event, but that it spans a spacetime interval exceeding substantially nucleon-nucleon distances. This means that the production process extended in space and time cannot be reduced to a simple superposition of nucleon-nucleon collisions.