Rest mass neutrino

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The mass of the neutrino – or, more precisely, the rest mass of the electron neutrino –
can be determined mathematically.
It is:

\[ E ν_e = 0,151788 eV \]

or even

\[ M ν_e​ = 2,70587 * 10^{-37} kg \]

The value given is a limit.
The rest mass of the neutrino thus takes on the smallest possible value for a massive object in the universe.