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

2002/05/27 by V. Barger, S. L. Glashow, S.L. Glashow +2 · 7 citations
Physics and Astronomy · #Neutrino Physics Research #Particle physics theoretical and experimental studies #Radioactive Decay and Measurement Techniques #hep-ex #hep-ph #nucl-ex #nucl-th

paper · pdf · doi:10.1016/s0370-2693(02)02177-9

published as Phys.Lett.B540:247-251,2002 · 8 pages, 1 figure

arxiv created 2002/05/27 · openalex publication_date 2002/08/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

We present a necessary condition on the solar oscillation amplitude for CP violation to be detectable through neutrinoless double beta (0νββ) decay. It depends only on the fractional uncertainty in the ν_e-ν_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 0νββdecay are calculable, it will be impossible to detect neutrino CP violation arising from Majorana phases.

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