Neutrino Mass, Dark Matter, and Baryon Asymmetry via TeV-Scale Physics without Fine-Tuning

Journal Article · Fri Feb 06 00:00:00 EST 2009 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.102.051805· OSTI ID:21180179

Aoki, Mayumi ^[1]; Kanemura, Shinya ^[2]; Seto, Osamu ^[3]

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1. ICRR, University of Tokyo, Kashiwa 277-8582 (Japan)
2. Department of Physics, University of Toyama, 3190 Gofuku, Toyama 930-8555 (Japan)
3. Instituto de Fisica Teorica UAM/CSIC, Universidad Autonoma de Madrid, Cantoblanco, Madrid 28049 (Spain)

We propose an extended version of the standard model, in which neutrino oscillation, dark matter, and the baryon asymmetry of the Universe can be simultaneously explained by the TeV-scale physics without assuming a large hierarchy among the mass scales. Tiny neutrino masses are generated at the three-loop level due to the exact Z{sub 2} symmetry, by which the stability of the dark matter candidate is guaranteed. The extra Higgs doublet is required not only for the tiny neutrino masses but also for successful electroweak baryogenesis. The model provides discriminative predictions especially in Higgs phenomenology, so that it is testable at current and future collider experiments.

• OSTI ID: 21180179
• Journal Information: Physical Review Letters, Vol. 102, Issue 5; Other Information: DOI: 10.1103/PhysRevLett.102.051805; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ASYMMETRY
BARYONS
COSMOLOGICAL MODELS
HIGGS BOSONS
HIGGS MODEL
MASS
NEUTRINO OSCILLATION
NEUTRINOS
NONLUMINOUS MATTER
STANDARD MODEL
SYMMETRY
TEV RANGE 01-10
UNIVERSE