Radiative neutrino masses in the 
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Silva, Pablo Candia da; Pilaftsis, Apostolos

doi:10.1103/physrevd.102.095013

Cited by 6 publications

(2 citation statements)

References 74 publications

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“…If this is correctly done, the impact of one-loop matching on the smallest neutrino mass will in general be more significant than that of two-loop RG running. We explicitly demonstrate such an observation in the MSSM, for which both one-loop matching conditions [16,17] and two-loop RG equations [18] are available in the type-I seesaw model and the corresponding effective theories after the decoupling of heavy Majorana neutrinos.…”

Section: Jhep11(2021)101mentioning

confidence: 62%

The smallest neutrino mass revisited

Zhou

2021

J. High Energ. Phys.

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As is well known, the smallest neutrino mass turns out to be vanishing in the minimal seesaw model, since the effective neutrino mass matrix Mν 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 m1 ∈ [10−8, 10−10] eV at the Fermi scale ΛF = 91.2 GeV, where the range of m1 results from the uncertainties on the choice of the seesaw scale ΛSS and on the input values of relevant parameters at ΛSS.

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Section: Jhep11(2021)101mentioning

confidence: 62%

The smallest neutrino mass revisited

Zhou

2021

J. High Energ. Phys.

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“…In the SUSY limit, the loop-induced masses are zero due to the non-renormalization theorem. By soft terms of SUSY breaking, the neutrino masses are induced but the size of the loop-induced mass can be suppressed compared to the non-SUSY case [66]. As a result, the Dirac mass or the light-heavy neutrino mixing can be larger than the one in the non-SUSY case, and the Mu-to-Mu transition can be larger.…”

Section: Charged Higgsino Contributionmentioning

confidence: 99%

Models of the Muonium to Antimuonium Transition

Fukuyama,

Mimura,

Uesaka

2021

Preprint

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Muonium is a bound state composed of an antimuon and an electron, and it constitutes a hydrogen-like atom. Because of the absence of the hadronic matter in the bound state, the muonium is a useful probe to explore new physics being free from the hadronic uncertainties. The process of the muonium-to-antimuonium transition is considered to be effective to identify fundamental interactions which relate to the lepton flavor and lepton number violation. New experiments are being planned at J-PARC in Japan and CSNS in China, and it is expected to attract more attention in the near future. In this paper, we will study what kind of model can be verified in the next generation of the muonium-to-antimuonium transition search experiments while escaping the limitations from other experiments. Though the transition probability is strongly suppressed by the lepton flavor conservation in the standard model, it can be much larger by the exchanges of neutral and doubly charged bosons, and by box loop diagrams in new physics beyond the standard model. We study the neutrino models with heavy Majorana neutrinos at TeV scale, a type-II seesaw model, left-right models, and models for radiative neutrino masses such as the Zee-Babu model in particular, in addition to other possible models to induce the sizable transition probability, which can be tested in the forthcoming experiments.

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A Right-handed neutrino portal to the hidden sector: active neutrinos and their twins in an F-theory model

Kawamura

Raby

2023

J. High Energ. Phys.

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We analyze the neutrino phenomenology in an SU(5) F-theory model with both a visible sector and a twin hidden sector. At low energies, the strong and weak scales of the two sectors may differ but the spectrum of states is described by the MSSM (MSSM′) in the visible (twin) sectors. What is special about the model is that there are right-handed neutrinos which couple to both sectors via Yukawa couplings. As a result, assuming 3 right-handed neutrinos with a large mass much greater than the weak scale, at tree-level the seesaw mechanism results in 3 massive Majorana neutrinos and 3 massless ones. The massless neutrinos acquire mass via radiative corrections. In our analysis, the massless neutrinos are predominantly active neutrinos, while the massive neutrinos are predominantly sterile neutrinos. We fit the active neutrino masses and mixing angles and discuss the phenomenology of the lightest sterile neutrino. Finally we consider some possible scenarios for cosmology.

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Radiative neutrino masses in the νRMSSM

Cited by 6 publications

References 74 publications

The smallest neutrino mass revisited

The smallest neutrino mass revisited

Models of the Muonium to Antimuonium Transition

A Right-handed neutrino portal to the hidden sector: active neutrinos and their twins in an F-theory model

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