Radiative Neutrino Mass with Scotogenic Scalar Triplet
| Autor: | Ivica Picek, Branimir Radovčić, Vedran Brdar |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: |
Particle physics
Hypercharge Nuclear and High Energy Physics Scalar (mathematics) Dark matter FOS: Physical sciences neutrino mass 01 natural sciences dark matter High Energy Physics - Phenomenology (hep-ph) Neutrino mass 0103 physical sciences Symmetry breaking 010306 general physics Gauge symmetry Physics 010308 nuclear & particles physics High Energy Physics::Phenomenology NATURAL SCIENCES. Physics Symmetry (physics) PRIRODNE ZNANOSTI. Fizika High Energy Physics - Phenomenology Neutrino Lepton |
| Zdroj: | Physics Letters B Volume 728 |
| ISSN: | 0370-2693 |
| Popis: | We present radiative one-loop neutrino mass model with hypercharge zero scalar triplet in conjunction with another charged singlet scalar and an additional vectorlike lepton doublet. We study three variants of this mass model: the first one without additional beyond-SM symmetry, the second with imposed DM-stabilizing discrete Z_2 symmetry, and the third in which this Z_2 symmetry is promoted to the gauge symmetry U(1)_D. The two latter cases are scotogenic, with a neutral component of the scalar triplet as a dark matter candidate. In first scotogenic model the Z_2-odd dark matter candidate is at the multi-TeV mass scale, so that all new degrees of freedom are beyond the direct reach of the LHC. In second scotogenic setup, with broken U(1)_D symmetry the model may have LHC signatures or be relevant to astrophysical observations, depending on the scale of U(1)_D breaking. 11 pages, 3 figures, matches published version |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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