11. This was used by Enrico Fermi in developing his theory of beta decay . 12. Most neutrino physicists believe that neutrinoless double beta decay has never been observed. 13. The beta decay of tritium is one of the least energetic beta decays . 14. If the neutrino is a neutrinoless double-beta decay of certain nuclei. 15. At that time he became interested in double beta decay of atomic nuclei. 16. Trace amounts are also produced by the beta decay of tritium. 17. The more widely used nickel-63 sources provide electrons from beta decay . 18. Beta decay commonly occurs among the neutron-rich fission byproducts produced in nuclear reactors.19. At the same time, geochemical experiments detected the double beta decay of and. 20. Are high speed electrons only considered beta particles when emitted by beta decay ?
