A{sub 4}-based neutrino masses with Majoron decaying dark matter

Journal Article · Fri Oct 01 00:00:00 EDT 2010 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.82.073008· OSTI ID:21421349

Esteves, J N; Romao, J C ^[1]; Joaquim, F R ^[2]; Joshipura, A S ^[3]; Tortola, M A; Valle, J W. F. ^[4]

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1. Departamento de Fisica and CFTP, Instituto Superior Tecnico, Avenida Rovisco Pais 1, 1049-001 Lisboa (Portugal)
2. CERN, Theory Division, CH-1211 Geneva 23 (Switzerland)
3. Physical Research Laboratory, Ahmedabad 380009 (India)
4. AHEP Group, Institut de Fisica Corpuscular-C.S.I.C./Universitat de Valencia Edificio Institutos de Paterna, Apartado 22085, E-46071 Valencia (Spain)

We propose an A{sub 4} flavor-symmetric SU(3) x SU(2) x 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.

• OSTI ID: 21421349
• Journal Information: Physical Review. D, Particles Fields, Vol. 82, Issue 7; Other Information: DOI: 10.1103/PhysRevD.82.073008; (c) 2010 American Institute of Physics; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
COMPUTERIZED SIMULATION
EMISSION
FLAVOR MODEL
FORECASTING
LEPTON NUMBER
LIFETIME
MASS
NEUTRINOS
NONLUMINOUS MATTER
PARTICLE DECAY
PHOTONS
RELICT RADIATION
SU-2 GROUPS
SU-3 GROUPS
SYMMETRY
U-1 GROUPS
X RADIATION
BOSONS
COMPOSITE MODELS
DECAY
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
FERMIONS
IONIZING RADIATIONS
LEPTONS
LIE GROUPS
MASSLESS PARTICLES
MATHEMATICAL MODELS
MATTER
MICROWAVE RADIATION
PARTICLE MODELS
QUARK MODEL
RADIATIONS
SIMULATION
SU GROUPS
SYMMETRY GROUPS
U GROUPS