How Magnetic is the Dirac Neutrino?

@article{Bell2005HowMI,
  title={How Magnetic is the Dirac Neutrino?},
  author={N. Bell and V. Cirigliano and M. Ramsey-Musolf and P. Vogel and M. Wise},
  journal={Physical review letters},
  year={2005},
  volume={95 15},
  pages={
          151802
        }
}
We derive model-independent, "naturalness" upper bounds on the magnetic moments munu of Dirac neutrinos generated by physics above the scale of electroweak symmetry breaking. In the absence of fine-tuning of effective operator coefficients, we find that current information on neutrino mass implies that[EQUATION: SEE TEXT] bohr magnetons. This bound is several orders of magnitude stronger than those obtained from analyses of solar and reactor neutrino data and astrophysical observations. 

Figures and Topics from this paper

How Magnetic is the Neutrino
The existence of a neutrino magnetic moment implies contributions to the neutrino mass via radiative corrections. We derive model-independent "naturalness" upper bounds on the magnetic moments ofExpand
Neutrino magnetic moment: a window to new physics
Introduction. Experimental and theoretical studies of flavour conversion in solar, atmospheric, reactor and accelerator neutrino fluxes give strong evidence of non-zero neutrino mass. A massiveExpand
Model independent bounds on magnetic moments of Majorana neutrinos
Abstract We analyze the implications of neutrino masses for the magnitude of neutrino magnetic moments. By considering electroweak radiative corrections to the neutrino mass, we deriveExpand
On the Neutrino Millicharge
The neutrino luminosity of a degenerate electron gas in a strong magnetic field under conditions of the neutron-star crust owing to plasmon decay to a neutrino pair via a nonstandard mechanismExpand
THE EFFECT OF ELECTROMAGNETIC PROPERTIES OF NEUTRINOS ON THE PHOTON–NEUTRINO DECOUPLING TEMPERATURE
We examine the impact of electromagnetic properties of neutrinos on the annihilation of relic neutrinos with ultrahigh energy cosmic neutrinos for the process. For this process, photon–neutrinoExpand
Electromagnetic Properties of Neutrinos
In this paper, we discuss the main theoretical aspects and experimental effects of neutrino electromagnetic properties. We start with a general description of the electromagnetic form factors ofExpand
A model for right-handed neutrino magnetic moments
A simple extension of the standard model providing Majorana magnetic moments to right-handed neutrinos is presented. The model contains, in addition to the standard model particles and right-handedExpand
Right-handed neutrino magnetic moments
We discuss the phenomenology of the most general effective Lagrangian, up to operators of dimension five, built with standard model fields and interactions including right-handed neutrinos. InExpand
Revisiting large neutrino magnetic moments
A bstractCurrent experimental sensitivity on neutrino magnetic moments is many orders of magnitude above the Standard Model prediction. A potential measurement of next-generation experiments wouldExpand
Charged-current reactions in the NuSOnG and a test of neutrino-W couplings
We explore the physics potential of the NuSOnG experiment to probe new physics contributions to Wμνμ couplings in inverse muon decay and charged-current deep-inelastic scattering processes. We showExpand
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 45 REFERENCES
Astrophysical implications of the induced neutrino magnetic moment from large extra dimensions
Abstract Theories involving extra dimensions, a low (∼TeV) string scale and bulk singlet neutrinos will produce an effective neutrino magnetic moment which may be large (≲10−11μB). The effectiveExpand
Limits on neutrino electromagnetic properties — an update
Abstract Limits on neutrino electromagnetic properties from laboratory experiments and astrophysical arguments are reviewed with an emphasis on the currently favored range of small neutrino masses.Expand
Magnetic Moment of a Massive Neutrino and Neutrino-Spin Rotation
A massive Dirac neutrino has a magnetic moment, which causes its spin to precess in a magnetic field. This reduces the effective weak cross sections for relativistic neutrinos. An estimate on theExpand
Neutrino Magnetic Moments, Flavor Mixing, and the Super-Kamiokande Solar Data
We find that magnetic neutrino-electron scattering is unaffected by oscillations for vacuum mixing of Dirac neutrinos with only diagonal moments and for Majorana neutrinos with two flavors. ForExpand
Physics of neutrinos : and application to astrophysics
1 Historical Introduction.- 2 Standard Theory of Electroweak Interactions.- 3 Applications of the Electroweak Theory.- 4 Neutrino Sources and Detection.- 5 Properties of the Neutrino.- 6 MassiveExpand
Reactor searches for neutrino magnetic moment as a probe of extra dimensions
We present calculations of the magnetic moment contribution to neutrino electron scattering in large extra dimension brane-bulk models (LED) with three bulk neutrinos. We discuss the cases with twoExpand
NEUTRINO MAGNETIC MOMENTS
Finite neutrino magnetic moments are consequences of nonzero neutrino masses. The particle physics aspects of the neutrino electromagnetic interactions are reviewed. The astrophysical bounds and theExpand
Limits on the neutrino magnetic moment using 1496 days of Super-Kamiokande-I solar neutrino data.
TLDR
A search for a nonzero neutrino magnetic moment has been conducted using 1496 live days of solar neutrinos data from Super-Kamiokande-I.L, and in the absence of a clear signal, micro(nu)</=(3.6x10(-10))micro(B) at 90% C.L. Expand
Astrophysical Limitations on Possible Tensor Contributions to Weak Neutral Current Interactions
We consider the astrophysical implications of, and limits on, possible weak neutral-tensor-current interactions. Such interactions give the neutrino dipole moments that permit it to couple directlyExpand
Exotic decays of the muon and heavy leptons in gauge theories
Abstract We have studied the decay l1 → l2 + γ for arbitrary like charged spin 1 2 leptons in a manner which is applicable to a large class of models. Our computations assume that this process isExpand
...
1
2
3
4
5
...