Connecting Neutrino Masses and Dark Matter by High-dimensional Lepton Number Violation Operator

We propose a new model with the Majorana neutrino masses generated at two-loop level, in which the lepton number violation (LNV) processes, such as neutrino-less double beta decays, are mainly induced by the dimension-7 LNV effective operator

{\mathcal{O}}_7={\overline{l}}_R^c{\gamma}^{\mu }{L}_L\left({D}_{\mu}\varPhi \right)\varPhi \varPhi

. Note that it is necessary to impose an Z

_{2}

symmetry in order that

{\mathcal{O}}_7

dominates over the conventional dimension-5 Weinberg operator, which naturally results in a stable Z

_{2}

-odd neutral particle to be the cold dark matter candidate. More interestingly, due to the non-trivial dependence of the charged lepton masses, the model predicts the neutrino mass matrix to be in the form of the normal hierarchy. We also focus on a specific parameter region of great phenomenological interests, such as electroweak precision tests, dark matter direct searches along with its relic abundance, and lepton flavor violation processes.

Note:

19 pages, 5 figures

Neutrino Physics
Global Symmetries
Effective field theories
neutrino: Majorana: mass
neutrino: mass: hierarchy
neutrino: mass generation
double-beta decay: (0neutrino)
lepton number: violation
lepton: flavor: violation
operator: higher-dimensional

References(83)

Figures(5)

[1]

Implications of the GALLEX determination of the solar neutrino flux.

GALLEX

Collaboration

•

P. Anselmann
(
- Heidelberg, Max Planck Inst.
)

et al.

- Phys.Lett.B 285 (1992) 390-397
•
DOI:
- 10.1016/0370-2693(92)91522-B

[2]

Evidence for oscillation of atmospheric neutrinos

Super-Kamiokande

Collaboration

•

Y. Fukuda
(
- Tokyo U., ICRR
)

et al.

- Phys.Rev.Lett. 81 (1998) 1562-1567
•
e-Print:
- hep-ex/9807003
•
DOI:
- 10.1103/PhysRevLett.81.1562

[3]

Direct evidence for neutrino flavor transformation from neutral current interactions in the Sudbury Neutrino Observatory

SNO

Collaboration

•

Q.R. Ahmad

et al.

- Phys.Rev.Lett. 89 (2002) 011301
•
e-Print:
- nucl-ex/0204008
•
DOI:
- 10.1103/PhysRevLett.89.011301

[4]

Measurement of day and night neutrino energy spectra at SNO and constraints on neutrino mixing parameters

SNO

Collaboration

•

Q.R. Ahmad

et al.

- Phys.Rev.Lett. 89 (2002) 011302
•
e-Print:
- nucl-ex/0204009
•
DOI:
- 10.1103/PhysRevLett.89.011302

[5]

Measurement of Neutrino Oscillation by the K2K Experiment

K2K

Collaboration

•

M.H. Ahn
(
- Seoul Natl. U.
)

et al.

- Phys.Rev.D 74 (2006) 072003
•
e-Print:
- hep-ex/0606032
•
DOI:
- 10.1103/PhysRevD.74.072003

[6]

Indication of Electron Neutrino Appearance from an Accelerator-produced Off-axis Muon Neutrino Beam

T2K

Collaboration

•

K. Abe
(
- Tokyo U., ICRR
)

et al.

- Phys.Rev.Lett. 107 (2011) 041801
•
e-Print:
- 1106.2822
•
DOI:
- 10.1103/PhysRevLett.107.041801

[7]

Observation of electron-antineutrino disappearance at Daya Bay

Daya Bay

Collaboration

•

F.P. An
(
- Beijing, Inst. High Energy Phys.
)

et al.

- Phys.Rev.Lett. 108 (2012) 171803
•
e-Print:
- 1203.1669
•
DOI:
- 10.1103/PhysRevLett.108.171803

[8]

Planck 2013 results. XVI. Cosmological parameters

Planck

Collaboration

•

P.A.R. Ade
(
- Cardiff U.
)

et al.

- Astron.Astrophys. 571 (2014) A16
•
e-Print:
- 1303.5076
•
DOI:
- 10.1051/0004-6361/201321591

[9]

Planck 2015 results. I. Overview of products and scientific results

Planck

Collaboration

•

R. Adam
(
- LPSC, Grenoble
)

et al.

- Astron.Astrophys. 594 (2016) A1
•
e-Print:
- 1502.01582
•
DOI:
- 10.1051/0004-6361/201527101

[10]

A Model for neutrino masses and dark matter

Lawrence M. Krauss
(
- Case Western Reserve U.
)
,
Salah Nasri
(
- Syracuse U.
)
,
Mark Trodden
(
- Syracuse U.
)

- Phys.Rev.D 67 (2003) 085002
•
e-Print:
- hep-ph/0210389
•
DOI:
- 10.1103/PhysRevD.67.085002

[11]

Verifiable radiative seesaw mechanism of neutrino mass and dark matter

Ernest Ma
(
- UC, Riverside
)

- Phys.Rev.D 73 (2006) 077301
•
e-Print:
- hep-ph/0601225
•
DOI:
- 10.1103/PhysRevD.73.077301

[12]

Neutrino mass, Dark Matter and Baryon Asymmetry via TeV-Scale Physics without Fine-Tuning

- Phys.Rev.Lett. 102 (2009) 051805
•
e-Print:
- 0807.0361
•
DOI:
- 10.1103/PhysRevLett.102.051805

[13]

Predictive Model for Radiatively Induced Neutrino Masses and Mixings with Dark Matter

Michael Gustafsson
(
- Brussels U.
)
,
Jose Miguel No
(
- Sussex U. and
- Brussels U.
)
,
Maximiliano A. Rivera
(
- Santa Maria U., Valparaiso
)

- Phys.Rev.Lett. 110 (2013) 21, 211802,
- Phys.Rev.Lett. 112 (2014) 25, 259902 (erratum)
•
e-Print:
- 1212.4806
•
DOI:
- 10.1103/PhysRevLett.110.211802