Model of neutrino effective masses

Dinh, Dinh Nguyen; Ky, N. Anh; Vân, Nguyễn Thị Hồng; Văn, Phi Quang

doi:10.1103/physrevd.74.077701

Cited by 11 publications

(12 citation statements)

References 60 publications

(34 reference statements)

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“…[819] for details. The 3-3-1 models [826][827][828][829] are distinct SM gauge extensions which can naturally contain RH neutrinos at keV scale [830][831][832][833]. These models belong to a class of constructions where the SM gauge symmetry SU (2) L × U (1) Y is extended to SU (3) L × U (1) X in such a way that the cancellation of the anomalies involves all three families, offering an explanation for the long standing family number problem [826,[834][835][836].…”

Section: Dynamical Mass Generation and Composite Neutrinos (Authors: mentioning

confidence: 99%

“…[832], assuming the existence of a heavy scalar sextet S ∼ (6, −2/3). In this case Majorana mass terms for neutrinos are generated through the Yukawa interaction [831,833], …”

Section: Dynamical Mass Generation and Composite Neutrinos (Authors: mentioning

confidence: 99%

“…(6.55). It can be seen that the RH/active neutrino mass ratio is m N iR /m ν iL = v 2 χ /v 2 η [831,833], so that for v χ ≈ 1 TeV, v η ≈ 10 GeV masses at the keV scale for RH neutrinos are predicted, taking into account that the active neutrinos have masses of order m ν iL ≈ 0.1 eV [832]. The use of a scalar sextet was also developed in other ways to implement the seesaw mechanisms in 3-3-1 models [840][841][842].…”

Section: Dynamical Mass Generation and Composite Neutrinos (Authors: mentioning

confidence: 99%

See 2 more Smart Citations

A White Paper on keV sterile neutrino Dark Matter

Adhikari

Agostini

et al. 2017

J. Cosmol. Astropart. Phys.

365

316

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Abstract. We present a comprehensive review of keV-scale sterile neutrino Dark Matter, collecting views and insights from all disciplines involved -cosmology, astrophysics, nuclear, and particle physics -in each case viewed from both theoretical and experimental/observational perspectives. After reviewing the role of active neutrinos in particle physics, astrophysics, and cosmology, we focus on sterile neutrinos in the context of the Dark Matter puzzle. Here, we first review the physics motivation for sterile neutrino Dark Matter, based on challenges and tensions in purely cold Dark Matter scenarios. We then round out the discussion by critically summarizing all known constraints on sterile neutrino Dark Matter arising from astrophysical observations, laboratory experiments, and theoretical considerations. In this context, we provide a balanced discourse on the possibly positive signal from X-ray observations. Another focus of the paper concerns the construction of particle physics models, aiming to explain how sterile neutrinos of keV-scale masses could arise in concrete settings beyond the Standard Model of elementary particle physics. The paper ends with an extensive review of current and future astrophysical and laboratory searches, highlighting new ideas and their experimental challenges, as well as future perspectives for the discovery of sterile neutrinos.

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Section: Dynamical Mass Generation and Composite Neutrinos (Authors: mentioning

confidence: 99%

“…[832], assuming the existence of a heavy scalar sextet S ∼ (6, −2/3). In this case Majorana mass terms for neutrinos are generated through the Yukawa interaction [831,833], …”

Section: Dynamical Mass Generation and Composite Neutrinos (Authors: mentioning

confidence: 99%

Section: Dynamical Mass Generation and Composite Neutrinos (Authors: mentioning

confidence: 99%

See 1 more Smart Citation

A White Paper on keV sterile neutrino Dark Matter

Adhikari

Agostini

et al. 2017

J. Cosmol. Astropart. Phys.

365

316

View full text Add to dashboard Cite

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“…There has been a lot of work on model building aspects of keV sterile neutrino dark matter. For example, keV sterile neutrino dark matter has been discussed in gauge extensions of the SM [56,57], models of composite Dirac neutrinos [58,59], 331 models [60,61], models involving Froggatt-Nielsen mechanism [62] and in several other contexts. A review of different models/mass generation mechanisms can be found in [63].…”

Section: Right Handed Neutrino As a Kev Warm Dark Mattermentioning

confidence: 99%

Higgs boson mass, neutrino masses and mixing and keV dark matter in an U(1) R − lepton number model

Chakraborty

Roy

2014

J. High Energ. Phys.

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We discuss neutrino masses and mixing in the framework of a supersymmetric model with an U(1) R symmetry, consisting of a single right handed neutrino superfield with an appropriate R charge. The lepton number (L) of the standard model fermions are identified with the negative of their R-charges. As a result, a subset of leptonic R-parity violating operators can be present and are consistent with the U(1) R symmetry. This model can produce one light Dirac neutrino mass at the tree level without the need of introducing a very small neutrino Yukawa coupling. We analyze the scalar sector of this model in detail paying special attention to the mass of the lightest Higgs boson. One of the sneutrinos might acquire a substantial vacuum expectation value leading to interesting phenomenological consequences. Different sum rules involving the physical scalar masses are obtained and we show that the lightest Higgs boson mass receives a contribution proportional to the square of the neutrino Yukawa coupling f . This allows for a 125 GeV Higgs boson at the tree level for f ∼ O(1) and still having a small tree level mass for the active neutrino. In order to fit the experimental results involving neutrino masses and mixing angles we introduce a small breaking of U(1) R symmetry, in the context of anomaly mediated supersymmetry breaking. In the presence of this small R-symmetry breaking, light neutrino masses receive contributions at the one-loop level involving the R-parity violating interactions. We also identify the right handed neutrino as a warm dark matter candidate in our model. In the case of R-symmetry breaking, the large f case is characterized by a few hundred MeV lightest neutralino as an unstable lightest supersymmetric particle (LSP) and we briefly discuss the cosmological implications of such a scenario.

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“…Most of the known models fall into one of the above categories [57][58][59][60][61][62][63][64][65][66][67], although a notable exception exist in which light Dirac-type sterile neutrinos are motivated as composite states [68,69].…”

Section: Jhep07(2014)039mentioning

confidence: 99%

Common origin of reactor and sterile neutrino mixing

Merle

Morisi

Winter

2014

J. High Energ. Phys.

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If the hints for light sterile neutrinos from short-baseline anomalies are to be taken seriously, global fits indicate active-sterile mixings of a magnitude comparable to the known reactor mixing. We therefore study the conditions under which the active-sterile and reactor mixings could have the same origin in an underlying flavour model. As a starting point, we use µ − τ symmetry in the active neutrino sector, which (for three neutrinos) yields a zero reactor neutrino angle and a maximal atmospheric one. We demonstrate that adding one sterile neutrino can change this setting, so that the active-sterile mixing and non-zero θ 13 can be generated simultaneously. From the phenomenological perspective, electron (anti)neutrino disappearance can be easily accommodated, while muon neutrino disappearance can vanish. Even the LSND results can be reconciled if the Majorana phases have very specific values. From the theory perspective, the setting requires the misalignment of some of the flavon vacuum expectation values, which may be achieved in an A 4 or D 4 flavour symmetry model using extra dimensions.

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Model of neutrino effective masses

Cited by 11 publications

References 60 publications

A White Paper on keV sterile neutrino Dark Matter

A White Paper on keV sterile neutrino Dark Matter

Higgs boson mass, neutrino masses and mixing and keV dark matter in an U(1) R − lepton number model

Common origin of reactor and sterile neutrino mixing

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