Full parameter scan of the Zee model: exploring Higgs lepton flavor violation

Herrero-García, Juan; Ohlsson, Tommy; Riad, Stella; Wirén, Jens

doi:10.1007/jhep04(2017)130

Cited by 70 publications

(73 citation statements)

References 117 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Finally, using Eqs. (11)- (13) we obtain the predictions of three neutrino mixing angles θ 12 , θ 23 and θ 13 and three mass eigenvalues m i . Clearly, the prediction for these neutrino observables depends on the choice of the charge assignment of the global U (1) symmetry, because it determines the structure of matricesỸ 1,2 andF , see Appendix A.…”

Section: A Neutrino Masses and Mixingsmentioning

confidence: 94%

See 1 more Smart Citation

Zee model with flavor dependent global U(1) symmetry

Nomura

Yagyu

2019

J. High Energ. Phys.

View full text Add to dashboard Cite

We study a simple extension of the Zee model, in which a discrete Z 2 symmetry imposed in the original model is replaced by a global U (1) symmetry retaining the same particle content. Due to the U (1) symmetry with flavor dependent charge assignments, the lepton sector has an additional source of flavor violating Yukawa interactions with a controllable structure, while the quark sector does not at tree level. We show that current neutrino oscillation data can be explained under constraints from lepton flavor violating decays of charged leptons in a successful charge assignment of the U (1) symmetry. In such scenario, we find a characteristic pattern of lepton flavor violating decays of additional Higgs bosons, which can be a smoking gun signature at collider experiments.

show abstract

Section: A Neutrino Masses and Mixingsmentioning

confidence: 94%

“…The extension of the Zee model with the Type-III Yukawa interaction can actually explain current neutrino data, see e.g., [13]. However, the quark sector should also be expected to have flavor violating Yukawa interactions as these are generally allowed by the symmetry.…”

Section: Introductionmentioning

confidence: 97%

Zee model with flavor dependent global U(1) symmetry

Nomura

Yagyu

2019

J. High Energ. Phys.

View full text Add to dashboard Cite

show abstract

“…where κ is the one-loop factor given by [51], well below any foreseeable future experimental sensitivity.…”

Section: Neutrino Massmentioning

confidence: 98%

Non-standard interactions in radiative neutrino mass models

Babu

Dev

Jana

et al. 2020

J. High Energ. Phys.

136

126

View full text Add to dashboard Cite

Models of radiative Majorana neutrino masses require new scalars and/or fermions to induce lepton number violating interactions. We show that these new particles also generate observable neutrino nonstandard interactions (NSI) with matter. We classify radiative models as type-I or II, with type-I models containing at least one Standard Model (SM) particle inside the loop diagram generating neutrino mass, and type-II models having no SM particle inside the loop. While type-II radiative models do not generate NSI at tree-level, popular models which fall under the type-I category are shown, somewhat surprisingly, to generate observable NSI at tree-level, while being consistent with direct and indirect constraints from colliders, electroweak precision data and charged-lepton flavor violation (cLFV). We survey such models where neutrino masses arise at one, two and three loops. In the prototypical Zee model which generates neutrino masses via one-loop diagrams involving charged scalars, we find that diagonal NSI can be as large as (8%, 3.8%, 9.3%) for (ε ee , ε µµ , ε τ τ ), while off-diagonal NSI can be at most (1.5 × 10 −3 %, 0.56%, 0.34%) for (ε eµ , ε eτ , ε µτ ). In one-loop neutrino mass models using leptoquarks (LQs), (ε µµ , ε τ τ ) can be as large as (21.6%, 51.7%), while ε ee and (ε eµ , ε eτ , ε µτ ) can at most be 0.6%. Other twoand three-loop LQ models are found to give NSI of similar strength. The most stringent constraints on the diagonal NSI are found to come from neutrino oscillation and scattering experiments, while the off-diagonal NSI are mostly constrained by low-energy processes, such as atomic parity violation and cLFV. We also comment on the future sensitivity of these radiative models in long-baseline neutrino experiments, such as DUNE. While our analysis is focused on radiative neutrino mass models, it essentially covers all NSI possibilities with heavy mediators. arXiv:1907.09498v2 [hep-ph] 3 Oct 2019 Contents 7 Other type-I radiative models 76 7.1 One-loop models 77 7.1.1 Minimal radiative inverse seesaw model 77 7.1.2 One-loop model with vectorlike leptons 80 7.1.3 SU (2) L -singlet leptoquark model with vectorlike quark 82 7.1.4 SU (2) L -doublet leptoquark model with vectorlike quark 83 7.1.5 Model with SU (2) L -triplet leptoquark and vectorlike quark 84 7.1.6 A new extended one-loop leptoquark model 85 7.2 Two-loop models 87 7.2.1 Zee-Babu model 87 7.2.2 Leptoquark/diquark variant of the Zee-Babu model 88 7.2.3 Model with SU (2) L -doublet and singlet leptoquarks 89 7.2.4 Leptoquark model with SU (2) L -singlet vectorlike quark 90 7.2.5 Angelic model 91 7.2.6 Model with singlet scalar and vectorlike quark 92 7.2.7 Leptoquark model with vectorlike lepton 93 7.2.8 Leptoquark model with SU (2) L -doublet vectorlike quark 93 7.2.9 A new two-loop leptoquark model 94 7.3 Three-loop models 95 7.3.1 KNT Model 95 7.3.2 AKS model 96 7.3.3 Cocktail Model 97 7.3.4 Leptoquark variant of the KNT model 98 -ii -7.3.5 SU (2) L -singlet three-loop model 99 7.4 Four-and higher-loop models 100 8 Type II r...

show abstract

“…Therefore, the Zee model leads to correlations between the leptonic mixing angles and the h → τ µ and h → τ e rates. These can be used to set a lower limit on the HLFV rates [83]. For instance, one finds BR(h → τ µ) 10 −6 10 −7 (39) for normal (inverted) neutrino mass ordering.…”

Section: Hdms Neutrino Masses and Hlfvmentioning

confidence: 99%

Higgs Lepton Flavor Violating Decays in Two Higgs Doublet Models

Vicente

2019

Front. Phys.

View full text Add to dashboard Cite

The discovery of a non-zero rate for a lepton flavor violating decay mode of the Higgs boson would definitely be an indication of New Physics. We review the prospects for such signal in Two Higgs Doublet Models, in particular for Higgs boson decays into τ µ final states. We will show that this scenario contains all the necessary ingredients to provide large flavor violating rates and still be compatible with the stringent limits from direct searches and low-energy flavor experiments.1

show abstract

Full parameter scan of the Zee model: exploring Higgs lepton flavor violation

Cited by 70 publications

References 117 publications

Zee model with flavor dependent global U(1) symmetry

Zee model with flavor dependent global U(1) symmetry

Non-standard interactions in radiative neutrino mass models

Higgs Lepton Flavor Violating Decays in Two Higgs Doublet Models

Contact Info

Product

Resources

About