System
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Revision as of 09:50, 6 April 2016 by Stefan (Talk | contribs) (Created page with "A '''system''' usually refers to one or more particles grouped together. A system can be described in terms of a single four-momentum, which is the vector sum...")
A system usually refers to one or more particles grouped together. A system can be described in terms of a single four-momentum, which is the vector sum of the four-momenta of its constituents. Jets and dressed leptons are examples of systems.
