Journal
PHYSICAL REVIEW D
Volume 78, Issue 9, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.78.093007
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We present a tribimaximal lepton mixing scheme where the neutrinoless double beta decay rate has a lower bound which correlates with the ratio alpha Delta m(sol)(2)/Delta m(atm)(2) well determined by current data, as well as with the unknown Majorana CP phase phi(12) characterizing the solar neutrino subsystem. For the special value phi(12) = pi/2 (opposite CP-sign neutrinos) the beta beta(0 nu) rate vanishes at tree level when Delta m(sol)(2)/Delta m(atm)(2) = 3/80, only allowed at 3 sigma. For all other cases the rate is nonzero, and lies within current and projected experimental sensitivities close to phi(12) = 0. We suggest two model realizations of this scheme in terms of A(4) x Z(2) and A(4) x Z(4) flavor symmetries.
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