Predicting leptonic CP phase by considering deviations in charged lepton and neutrino sectors

Sruthilaya, M.; Soumya, C.; Deepthi, K. N.; Mohanta, Rukmani

doi:10.1088/1367-2630/17/8/083028

Cited by 17 publications

(17 citation statements)

References 87 publications

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“…which has been proved to be in good agreement with the experimental observations [28,29]. The PMNS matrix can be parametrized in terms of three mixing angles (θ 13 , θ 23 and θ 12 ) and three phases (one Dirac phase, δ CP , and two Majorana phases, ρ and σ ) as…”

Section: Neutrino Masses and Mixingsupporting

confidence: 80%

$$A_4$$ A 4 realization of linear seesaw and neutrino phenomenology

2018

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Motivated by the crucial role played by the discrete flavor symmetry groups in explaining the observed neutrino oscillation data, we consider the A 4 realization of linear seesaw by extending the standard model (SM) particle content with two types of right-handed (RH) neutrinos along with the flavon fields, and the SM symmetry with A 4 × Z 4 × Z 3 and a global symmetry U (1) X , which is broken explicitly by the Higgs potential. We scrutinize this model to see if it can explain the recent results from neutrino oscillation experiments, by searching for parameter space that can accommodate the observables such as the reactor mixing angle θ 13 , the CP violating phase δ CP , sum of active neutrino masses i m i , solar and atmospheric mass-squared differences, and the lepton number violating parameter called the effective Majorana mass parameter, in line with recent experimental results. We also discuss the scope of this model to explain the baryon asymmetry of the Universe through leptogenesis. We also investigate the possibility of probing the non-unitarity effect in this scenario, but it is found to be rather small. Commission for financial support. RM acknowledges the support from the Science and Engineering Research Board (SERB), Government of India, through Grant No. SB/S2/HEP-017/2013.

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Section: Neutrino Masses and Mixingsupporting

confidence: 80%

$$A_4$$ A 4 realization of linear seesaw and neutrino phenomenology

2018

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“…The idea of correcting a leading-order neutrino mixing pattern by contributions from the charged leptons has recently been revisited [23,24,[46][47][48]. Our work goes beyond these analyses in three ways.…”

Section: Jhep12(2014)122mentioning

confidence: 99%

Testing solar lepton mixing sum rules in neutrino oscillation experiments

Ballett

King

Luhn

et al. 2014

J. High Energ. Phys.

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Small discrete family symmetries such as S 4 , A 4 or A 5 may lead to simple leading-order predictions for the neutrino mixing matrix such as the bimaximal, tribimaximal or golden ratio mixing patterns, which may be brought into agreement with experimental data with the help of corrections from the charged-lepton sector. Such scenarios generally lead to relations among the parameters of the physical leptonic mixing matrix known as solar lepton mixing sum rules. In this article, we present a simple derivation of such solar sum rules, valid for arbitrary neutrino and charged lepton mixing angles and phases, assuming only θ ν 13 = θ e 13 = 0. We discuss four leading-order neutrino mixing matrices with θ ν 13 = 0 which are well motivated from family symmetry considerations. We then perform a phenomenological analysis of the scope to test the resulting four solar sum rules, highlighting the complementarity between next-generation neutrino oscillation experiments such as the reactor experiment JUNO and a superbeam experiment.

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“…In Sec.II, we present a brief review of the scotogenic model. In Sec.III, according to method (c ′ ), we assume that the neutrino mixing matrix is described as a modified tribimaximal mixing pattern [40,46]. In Sec.IV, according to method (d ′ ), we employ the one-zero-texture scheme.…”

Section: (D')mentioning

confidence: 99%

Scotogenic dark matter and single-zero textures of the neutrino mass matrix

Kitabayashi

2018

Phys. Rev. D

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The scotogenic model can simultaneously account for the presence of dark matter and the origin of neutrino masses. We assume that the flavor neutrino mass matrix has one zero element and Yukawa matrix elements are real in the scotogenic model. It turns out that only one pattern of the flavor neutrino mass matrix in the one-zero-texture scheme within the scotogenic model is viable with the observed neutrino oscillation data, the relic abundance of the dark matter, and the upper limit of the branching ratio of the µ → eγ process. PACS numbers: 14.60.Pq, 95.35.+d, 98.80.Cq

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Predicting leptonic CP phase by considering deviations in charged lepton and neutrino sectors

Cited by 17 publications

References 87 publications

$$A_4$$ A 4 realization of linear seesaw and neutrino phenomenology

$$A_4$$ A 4 realization of linear seesaw and neutrino phenomenology

Testing solar lepton mixing sum rules in neutrino oscillation experiments

Scotogenic dark matter and single-zero textures of the neutrino mass matrix

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