The smallest neutrino mass revisited

Abstract As is well known, the smallest neutrino mass turns out to be vanishing in the minimal seesaw model, since the effective neutrino mass matrix M ν is of rank two due to the fact that only two heavy right-handed neutrinos are introduced. In this paper, we point out that the one-loop matching c...

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Autor principal:	Shun Zhou
Formato:	article
Lenguaje:	EN
Publicado:	SpringerOpen 2021
Materias:	Effective Field Theories Neutrino Physics Nuclear and particle physics. Atomic energy. Radioactivity QC770-798
Acceso en línea:	https://doaj.org/article/c115d1cbfb2d4eb1a6ec11f1a62ff8b9
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spelling	oai:doaj.org-article:c115d1cbfb2d4eb1a6ec11f1a62ff8b92021-11-21T12:41:21ZThe smallest neutrino mass revisited10.1007/JHEP11(2021)1011029-8479https://doaj.org/article/c115d1cbfb2d4eb1a6ec11f1a62ff8b92021-11-01T00:00:00Zhttps://doi.org/10.1007/JHEP11(2021)101https://doaj.org/toc/1029-8479Abstract As is well known, the smallest neutrino mass turns out to be vanishing in the minimal seesaw model, since the effective neutrino mass matrix M ν is of rank two due to the fact that only two heavy right-handed neutrinos are introduced. In this paper, we point out that the one-loop matching condition for the effective dimension-five neutrino mass operator can make an important contribution to the smallest neutrino mass. By using the available one-loop matching condition and two-loop renormalization group equations in the supersymmetric version of the minimal seesaw model, we explicitly calculate the smallest neutrino mass in the case of normal neutrino mass ordering and find m 1 ∈ [10−8, 10−10] eV at the Fermi scale ΛF = 91.2 GeV, where the range of m 1 results from the uncertainties on the choice of the seesaw scale ΛSS and on the input values of relevant parameters at ΛSS.Shun ZhouSpringerOpenarticleEffective Field TheoriesNeutrino PhysicsNuclear and particle physics. Atomic energy. RadioactivityQC770-798ENJournal of High Energy Physics, Vol 2021, Iss 11, Pp 1-13 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Effective Field Theories Neutrino Physics Nuclear and particle physics. Atomic energy. Radioactivity QC770-798
spellingShingle	Effective Field Theories Neutrino Physics Nuclear and particle physics. Atomic energy. Radioactivity QC770-798 Shun Zhou The smallest neutrino mass revisited
description	Abstract As is well known, the smallest neutrino mass turns out to be vanishing in the minimal seesaw model, since the effective neutrino mass matrix M ν is of rank two due to the fact that only two heavy right-handed neutrinos are introduced. In this paper, we point out that the one-loop matching condition for the effective dimension-five neutrino mass operator can make an important contribution to the smallest neutrino mass. By using the available one-loop matching condition and two-loop renormalization group equations in the supersymmetric version of the minimal seesaw model, we explicitly calculate the smallest neutrino mass in the case of normal neutrino mass ordering and find m 1 ∈ [10−8, 10−10] eV at the Fermi scale ΛF = 91.2 GeV, where the range of m 1 results from the uncertainties on the choice of the seesaw scale ΛSS and on the input values of relevant parameters at ΛSS.
format	article
author	Shun Zhou
author_facet	Shun Zhou
author_sort	Shun Zhou
title	The smallest neutrino mass revisited
title_short	The smallest neutrino mass revisited
title_full	The smallest neutrino mass revisited
title_fullStr	The smallest neutrino mass revisited
title_full_unstemmed	The smallest neutrino mass revisited
title_sort	smallest neutrino mass revisited
publisher	SpringerOpen
publishDate	2021
url	https://doaj.org/article/c115d1cbfb2d4eb1a6ec11f1a62ff8b9
work_keys_str_mv	AT shunzhou thesmallestneutrinomassrevisited AT shunzhou smallestneutrinomassrevisited
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The smallest neutrino mass revisited

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