Current Direct Neutrino Mass Experiments

Figure 4

Dependence on endpoint energy 𝐸₀ of total count rate (a), relative fraction in the last 10 eV below the endpoint (b), and total count rate in the last 10 eV of a 𝛽-emitter (c). These numbers have been calculated for a superallowed 𝛽-decay using (18) for 𝑚(𝜈_𝑒)=0 and neglecting possible final states as well as the Fermi function 𝐹.

(a)

(b)

(c)