Low-energy GEANT4 simulations of electron capture decay in superconducting tunnel junctions
Despite its broad success describing fundamental particles, the Standard Model (SM) is incomplete in its description of neutrinos, as it does not include the possibility for non-zero masses which are empirically observed. Extensions to the SM can be built on the existence of additional neutrino mass eigenstates, that may help to understand the nature of the observed dark matter in our Universe. The BeEST (pronounced "beast") experiment is a search for such additional neutrino masses in the recoil energy spectrum for electron capture decay of $^7$Be. Here, detailed GEANT4 simulations are constructed ...
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