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Derivation of Dark Matter Parity from Lepton Parity · Around

2015

Derivation of Dark Matter Parity from Lepton Parity

Ma, Ernest

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It is shown that in extensions of the standard model of quarks and leptons where additive lepton number $L$ is broken by two units, so that $Z_2$ lepton parity, i.e.

$(-1)^L$ which is either even or odd, remains exactly conserved, there is the possibility of stable dark matter without additional symmetry.
This applies to many existing simple models of Majorana neutrino mass with dark matter, including some radiative models.
Several well-known examples are discussed.

Built on

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