Nonconservation of Separate $μ$ - and $e$ -Lepton Numbers in Gauge Theories with $V + A$ Currents

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21 February 1977

journal article
research article
Published by American Physical Society (APS) in Physical Review Letters

Vol. 38 (8) , 381-384
DOI:10.1103/physrevlett.38.381

Abstract

In gauge theories with

V + A

currents and new leptons, effects that do not separately conserve the

μ

- and

e

-lepton numbers are dramatically larger than those predicted in the pure

V - A

theories. The branching ratios for

μ \to e γ

and

K_{L} \to e μ

are found to be comparable to their present experimental limits.

Keywords

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