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lepton number

noun, Physics.
1.
in a process involving elementary particles, the total number of leptons minus the total number of antileptons.
Origin
1955-1960
1955-60
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for lepton number
  • In other words, the total baryon and lepton number of the reactants must equal the total baryon and lepton number of the products.
British Dictionary definitions for lepton number

lepton number

noun
1.
(physics) a quantum number describing the behaviour of elementary particles, equal to the number of leptons present minus the number of antileptons. It is thought to be conserved in all processes l
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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8
11
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