lepton number


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Related to lepton number: baryon number

lepton number

[′lep‚tän ‚nəm·bər]
(particle physics)
A conserved quantum number, equal to the number of leptons minus the number of antileptons in a system.
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Moreover, the intriguing option that neutrinos can be Majorana particles reveals an entirely new aspect of reality in which some of the sacrosanct laws of nature, such as the perturbative conservation of lepton number, can be conspicuously broken.
Czech Republic : Low-Energy Aspects of Gauge Unifications and their Experimental Implications

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