An ultraviolet completion for the Scotogenic model
The Scotogenic model is an economical scenario that generates neutrino masses at the 1-loop level and includes a dark matter candidate. This is achieved by means of an ad-hoc Z2 symmetry, which forbids the tree-level generation of neutrino masses and stabilizes the lightest Z2-odd state. Neutrino ma...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2021-12-01
|
| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269321006572 |
| _version_ | 1831630411008049152 |
|---|---|
| author | Pablo Escribano Avelino Vicente |
| author_facet | Pablo Escribano Avelino Vicente |
| author_sort | Pablo Escribano |
| collection | DOAJ |
| description | The Scotogenic model is an economical scenario that generates neutrino masses at the 1-loop level and includes a dark matter candidate. This is achieved by means of an ad-hoc Z2 symmetry, which forbids the tree-level generation of neutrino masses and stabilizes the lightest Z2-odd state. Neutrino masses are also suppressed by a quartic coupling, usually denoted by λ5. While the smallness of this parameter is natural, it is not explained in the context of the Scotogenic model. We construct an ultraviolet completion of the Scotogenic model that provides a natural explanation for the smallness of the λ5 parameter and induces the Z2 parity as the low-energy remnant of a global U(1) symmetry at high energies. The low-energy spectrum contains, besides the usual Scotogenic states, a massive scalar and a massless Goldstone boson, hence leading to novel phenomenological predictions in flavor observables, dark matter physics and colliders. |
| first_indexed | 2024-12-19T02:51:06Z |
| format | Article |
| id | doaj.art-315b98ed0a87404a9c7decc220f5898f |
| institution | Directory Open Access Journal |
| issn | 0370-2693 |
| language | English |
| last_indexed | 2024-12-19T02:51:06Z |
| publishDate | 2021-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj.art-315b98ed0a87404a9c7decc220f5898f2022-12-21T20:38:37ZengElsevierPhysics Letters B0370-26932021-12-01823136717An ultraviolet completion for the Scotogenic modelPablo Escribano0Avelino Vicente1Instituto de Física Corpuscular, CSIC-Universitat de València, 46980 Paterna, Spain; Corresponding author.Instituto de Física Corpuscular, CSIC-Universitat de València, 46980 Paterna, Spain; Departament de Física Teòrica, Universitat de València, 46100 Burjassot, SpainThe Scotogenic model is an economical scenario that generates neutrino masses at the 1-loop level and includes a dark matter candidate. This is achieved by means of an ad-hoc Z2 symmetry, which forbids the tree-level generation of neutrino masses and stabilizes the lightest Z2-odd state. Neutrino masses are also suppressed by a quartic coupling, usually denoted by λ5. While the smallness of this parameter is natural, it is not explained in the context of the Scotogenic model. We construct an ultraviolet completion of the Scotogenic model that provides a natural explanation for the smallness of the λ5 parameter and induces the Z2 parity as the low-energy remnant of a global U(1) symmetry at high energies. The low-energy spectrum contains, besides the usual Scotogenic states, a massive scalar and a massless Goldstone boson, hence leading to novel phenomenological predictions in flavor observables, dark matter physics and colliders.http://www.sciencedirect.com/science/article/pii/S0370269321006572 |
| spellingShingle | Pablo Escribano Avelino Vicente An ultraviolet completion for the Scotogenic model Physics Letters B |
| title | An ultraviolet completion for the Scotogenic model |
| title_full | An ultraviolet completion for the Scotogenic model |
| title_fullStr | An ultraviolet completion for the Scotogenic model |
| title_full_unstemmed | An ultraviolet completion for the Scotogenic model |
| title_short | An ultraviolet completion for the Scotogenic model |
| title_sort | ultraviolet completion for the scotogenic model |
| url | http://www.sciencedirect.com/science/article/pii/S0370269321006572 |
| work_keys_str_mv | AT pabloescribano anultravioletcompletionforthescotogenicmodel AT avelinovicente anultravioletcompletionforthescotogenicmodel AT pabloescribano ultravioletcompletionforthescotogenicmodel AT avelinovicente ultravioletcompletionforthescotogenicmodel |