Neutrino phenomenology, muon and electron (g-2) under $U(1)$ gauged symmetries in an extended inverse seesaw model

Panda, Papia; Mishra, Priya; Behera, Mitesh Kumar; Mohanta, Rukmani

doi:10.48550/arxiv.2203.14536

Cited by 3 publications

(3 citation statements)

References 61 publications

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“…After parametrizing the anomalous three-gauge-boson couplings, we evaluate their contribution to the g−2 of the muon, first presented in general terms without using any 45,51,52,[84][85][86][87][88][96][97][98], without including the anomalous coupling. 6 In the presence of more than one Z s this is no longer the case [116].…”

Section: Results and Outlookmentioning

confidence: 99%

Anomalous and axial Z′ contributions to g−2

Anastasopoulos

Kaneta

Kiritsis

et al. 2023

J. High Energ. Phys.

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We study the effects of an anomalous Z′ boson on the anomalous magnetic moment of the muon (g – 2), and especially the impact of its axial coupling. We mainly evaluate the negative contribution to (g – 2) of such couplings at one-loop and look at the anomalous couplings generated at two loops. We find areas of the parameter space, where the anomalous contribution becomes comparable and even dominant compared to the one-loop contribution. We show that in such cases, the cutoff of the theory is sufficiently low, so that new charged fermions can be found in the next round of collider experiments. We comment on the realization of such a context in string theory orientifolds.

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Section: Results and Outlookmentioning

confidence: 99%

Anomalous and axial Z′ contributions to g−2

Anastasopoulos

Kaneta

Kiritsis

et al. 2023

J. High Energ. Phys.

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“…In these approaches, the masses of the new heavy particles are rather heavy and are beyond the access of the present or future experiments. Many other alternative approaches were proposed, e.g., linear seesaw [19][20][21], inverse seesaw [22][23][24][25][26][27][28][29][30], where the new physics scale responsible for neutrino mass generation can be brought down to TeV scale, at the expense of the inclusion of new additional fermion fields (S i ), which are SM singlets. Another interesting idea that has received a lot of attention in recent times is the application of modular symmetry [31][32][33][34], where the usage of excess flavon fields can naturally be avoided.…”

Section: Introductionmentioning

confidence: 99%

Exploring models with modular symmetry in neutrino oscillation experiments

Mishra,

Behera,

Panda

et al. 2023

J. High Energ. Phys.

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Our study aims to investigate the viability of neutrino mass models that arise from discrete non-Abelian modular symmetry groups, i.e., ΓN with (N = 1, 2, 3, . . . ) in the future neutrino experiments T2HK, DUNE, and JUNO. Modular symmetry reduces the usage of flavon fields compared to the conventional discrete flavor symmetry models. Theories based on modular symmetries predict the values of leptonic mixing parameters, and therefore, these models can be tested in future neutrino experiments. In this study, we consider three models based on the A4 modular symmetry, i.e., Model-A, B, and C such a way that they predict different values of the oscillation parameters but still allowed with respect to the current data. In the future, it is expected that T2HK, DUNE, and JUNO will measure the neutrino oscillation parameters very precisely, and therefore, some of these models can be excluded in the future by these experiments. We have estimated the prediction of these models numerically and then used them as input to scrutinize these models in the neutrino experiments. Assuming the future best-fit values of θ23 and δCP remain the same as the current one, our results show that at 5σ C.L, Model-A can be excluded by T2HK whereas Model-B can be excluded by both T2HK and DUNE. Model-C cannot be excluded by T2HK and DUNE at 5σ C.L. Further; our results show that JUNO alone can exclude Model-B at an extremely high confidence level if the future best-fit of θ12 remains at the current-one. We have also identified the region in the θ23 - δCP parameter space, for which Model-A cannot be separated from Model-B in T2HK and DUNE.

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“…It is interesting to notice that many non-abelian discrete symmetries i.e., S 3 [28][29][30][31], A 4 [32][33][34][35], S 4 [36][37][38] etc. and continuous symmetries like U (1) B−L [39][40][41][42][43][44][45], U (1) Le−Lµ [46][47][48][49], U (1) H [50][51][52][53] etc. come to our rescue to develop the model and generate neutrino mass matrix which gives results in-accordance with experimental data.…”

Section: Introductionmentioning

confidence: 99%

Type III seesaw under $A_4$ modular symmetry with leptogenesis and muon $g-2$

Mishra¹,

Behera²,

Panda³

et al. 2022

Preprint

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We make an attempt to study neutrino phenomenology in the framework of type-III seesaw by considering A 4 modular symmetry in the super-symmetric context. In addition, we have included local U (1) B−L symmetry which eventually helps us to avoid certain unwanted terms in the superpotential. Hitherto, the seesaw being type-III, it involves the fermion triplet superfields Σ, along with which, we have included a singlet weighton field (ρ). In here, modular symmetry plays a crucial role by avoiding the usage of excess flavon (weighton) fields. Also, the Yukawa couplings acquire modular forms which are expressed in terms of Dedekind eta function η(τ ). However, for numerical analysis we use q expansion expressions of these couplings. Therefore, the model discussed here is triumphant enough to accommodate the observed neutrino oscillation data. Additionally, it also successfully explains leptogenesis and sheds some light on the current results of muon (g − 2).

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Neutrino phenomenology, muon and electron (g-2) under $U(1)$ gauged symmetries in an extended inverse seesaw model

Cited by 3 publications

References 61 publications

Anomalous and axial Z′ contributions to g−2

Anomalous and axial Z′ contributions to g−2

Exploring models with modular symmetry in neutrino oscillation experiments

Type III seesaw under $A_4$ modular symmetry with leptogenesis and muon $g-2$

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