No-go for detecting CP violation via neutrinoless double beta decay

Details No-go for detecting CP violation via neutrinoless double beta decay No-go for detecting CP violation via neutrinoless double beta decay

2002-05-27

arxiv.org/abs/hep-ph/0205290v1

Phys.Lett.B540:247-251,2002

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages, 1 figure

Scientific paper

10.1016/S0370-2693(02)02177-9

We present a necessary condition on the solar oscillation amplitude for CP violation to be detectable through neutrinoless double beta (0\nu\beta\beta) decay. It depends only on the fractional uncertainty in the \nu_e-\nu_e element of the neutrino mass matrix. We demonstrate that even under very optimistic assumptions about the sensitivity of future experiments to the absolute neutrino mass scale, and on the precision with which nuclear matrix elements that contribute to 0\nu\beta\beta decay are calculable, it will be impossible to detect neutrino CP violation arising from Majorana phases.

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