# Neutron lifetime and dark decay of the neutron and hydrogen

26 Feb 2020 Berezhiani Zurab

The neutron, besides its $\beta$-decay $n\to p e\bar\nu_e$, might have a new decay channel $n\to n' X$ into mirror neutron $n'$, its nearly mass degenerate twin from parallel dark sector, and a massless boson $X$ which can be ordinary and mirror photons or some more exotic particle. Such an invisible decay could alleviate the tension between the neutron lifetimes measured in the beam and trap experiments... (read more)

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• HIGH ENERGY PHYSICS - PHENOMENOLOGY