首页|The implication of the atomic effects in neutrinoless double beta decay
The implication of the atomic effects in neutrinoless double beta decay
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NSTL
World Scientific
In the planned ton-scale neutrinoless double beta (0 nu beta beta) decay experiments, the used Q value is the mass-energy difference between the ground states of mother and daughter atoms, without correcting the atomic energy difference due to the alteration in the nuclear charge before and after the decay process. We show that the atomic energy change between the two ground states can potentially reduce the Q value by 5.502, 12.103, and 12.372 keV for the decays from Ge-76, Te-130, and Xe-136, respectively. The available kinetic energy for two electrons can be 2033.51 keV for Ge-76 decay, 2515.41 keV for Te-130 decay, and 2445.45 keV for Xe-136 decay after correcting for atomic effects. This implies that the planned experiments could potentially miss the decay signature if a narrow energy window is designated to reduce background events including 2 nu beta beta decay events.
Neutrinoless double beta decaydecay Q valueavailable decay energy for two electronsMASS
NSTL
World Scientific
