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...

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Autores principales:	Pablo Escribano, Avelino Vicente
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Physics QC1-999
Acceso en línea:	https://doaj.org/article/315b98ed0a87404a9c7decc220f5898f
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spelling	oai:doaj.org-article:315b98ed0a87404a9c7decc220f5898f2021-12-04T04:32:21ZAn ultraviolet completion for the Scotogenic model0370-269310.1016/j.physletb.2021.136717https://doaj.org/article/315b98ed0a87404a9c7decc220f5898f2021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S0370269321006572https://doaj.org/toc/0370-2693The 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.Pablo EscribanoAvelino VicenteElsevierarticlePhysicsQC1-999ENPhysics Letters B, Vol 823, Iss , Pp 136717- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Physics QC1-999
spellingShingle	Physics QC1-999 Pablo Escribano Avelino Vicente An ultraviolet completion for the Scotogenic model
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.
format	article
author	Pablo Escribano Avelino Vicente
author_facet	Pablo Escribano Avelino Vicente
author_sort	Pablo Escribano
title	An ultraviolet completion for the Scotogenic model
title_short	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_sort	ultraviolet completion for the scotogenic model
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/315b98ed0a87404a9c7decc220f5898f
work_keys_str_mv	AT pabloescribano anultravioletcompletionforthescotogenicmodel AT avelinovicente anultravioletcompletionforthescotogenicmodel AT pabloescribano ultravioletcompletionforthescotogenicmodel AT avelinovicente ultravioletcompletionforthescotogenicmodel
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An ultraviolet completion for the Scotogenic model

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