TY  - JOUR
AU  - Esteves, J. N.
AU  - Joaquim, F. R.
AU  - Joshipura, A. S.
AU  - Romao, J. C.
AU  - Tortola, M.
AU  - Valle, J. W. F.
PY  - 2010
DA  - 2010//
TI  - A(4)-based neutrino masses with Majoron decaying dark matter
T2  - Phys. Rev. D
JO  - Physical Review D
SP  - 073008
EP  - 8pp
VL  - 82
IS  - 7
PB  - Amer Physical Soc
AB  - We propose an A(4) flavor-symmetric SU(3) circle times SU(2) circle times U(1) seesaw model where lepton number is broken spontaneously. A consistent two-zero texture pattern of neutrino masses and mixing emerges from the interplay of type-I and type-II seesaw contributions, with important phenomenological predictions. We show that, if the Majoron becomes massive, such seesaw scenario provides a viable candidate for decaying dark matter, consistent with cosmic microwave background lifetime constraints that follow from current WMAP observations. We also calculate the subleading one-loop-induced decay into photons which leads to a monoenergetic emission line that may be observed in future x-ray missions such as Xenia.
SN  - 1550-7998
UR  - http://arxiv.org/abs/1007.0898
UR  - https://doi.org/10.1103/PhysRevD.82.073008
DO  - 10.1103/PhysRevD.82.073008
LA  - English
N1  - ISI:000282812200004
ID  - Esteves_etal2010
ER  -