Challenging Lorentz noninvariant neutrino oscillations without neutrino masses

  title={Challenging Lorentz noninvariant neutrino oscillations without neutrino masses},
  author={Vernon Barger and Danny Marfatia and Kerry Whisnant},
  journal={Physics Letters B},

Figures and Tables from this paper

Lorentz noninvariant neutrino oscillations without neutrino mass

The bicycle model of Lorentz noninvariant neutrino oscillations without neutrino masses naturally predicts maximal mixing and a 1/E dependence of the oscillation argument for �µ ! �� oscillations of

Lorentz noninvariant oscillations of massless neutrinos are excluded

The bicycle model of Lorentz noninvariant neutrino oscillations without neutrino masses naturally predicts maximal mixing and a 1/E dependence of the oscillation argument for muon-neutrino to


We analyze the consequences of Lorentz violation (LV) to three-generation neutrino oscillation in the massless neutrino sector. We present a general formalism of three-family neutrino oscillation

Perturbative Lorentz and CPT violation for neutrino and antineutrino oscillations

The effects of perturbative Lorentz and CPT violation on neutrino oscillations are studied. Features include neutrino-antineutrino oscillations, direction dependence, and unconventional energy

Constraining Lorentz Violation in Electroweak Physics

For practical reasons, the majority of past Lorentz tests has involved stable or quasistable particles, such as photons, neutrinos, electrons, protons, and neutrons. Similar efforts in the

Symmetry breaking, and the effect of matter density on neutrino oscillation

A proposal for the neutrino mass, based on neutrino-scalar field interaction, is introduced. The scalar field is also non-minimally coupled to the Ricci scalar, and hence relates the neutrino mass to

Testing Lorentz and CPT Invariance with Neutrinos

The generic experimental signatures of the breakdown of these fundamental symmetries in the neutrino sector are presented.

Neutrinos with Lorentz-violating operators of arbitrary dimension

The behavior of fermions in the presence of Lorentz and CPT violation is studied. Allowing for operators of any mass dimension, we classify all Lorentz-violating terms in the quadratic Lagrange



Global three-parameter model for neutrino oscillations using Lorentz violation

A model of neutrino oscillations is presented that has only three degrees of freedom and is consistent with existing data. The model is a subset of the renormalizable sector of the Standard-Model

Neutrino Properties Before and After KamLAND

We review neutrino oscillation physics, including the determination of mass splittings and mixings from current solar, atmospheric, reactor and accelerator neutrino data. A brief discussion is given

Lorentz and CPT violation in neutrinos

A general formalism is presented for violations of Lorentz and CPT symmetry in the neutrino sector. The effective Hamiltonian for neutrino propagation in the presence of Lorentz and CPT violation is

CPT-Odd resonances in neutrino oscillations

It is shown that for oscillations in matter, a simultaneous enhancement of both neutrino and antineutrino oscillation amplitudes is possible and interference between the CPT-violating interaction and C PT-even mass terms in the Lagrangian can lead to a resonant enhancement of the oscillation amplitude.


The current status of the physics of massive neutrinos is reviewed with a forward-looking emphasis. The article begins with the general phenomenology of neutrino oscillations in vacuum and matter and

Lorentz and CPT violation in the neutrino sector

We consider neutrino oscillations in the minimal Standard-Model Extension describing general Lorentz and CPT violation. Among the models without neutrino mass differences is one with two degrees of

Evidence for muon neutrino oscillation in an accelerator-based experiment.

The energy-dependent disappearance of nu(mu), which the authors presume have oscillated to nu(tau), is observed in the KEK to Kamioka (K2K) long-baseline neutrino oscillation experiment.

Search for periodicities in the B8 solar neutrino flux measured by the Sudbury Neutrino Observatory

A search has been made for sinusoidal periodic variations in the 8B solar neutrino flux using data collected by the Sudbury Neutrino Observatory over a 4-year time interval. The variation at a period

Measurement of neutrino oscillation with KamLAND: evidence of spectral distortion.

The observed energy spectrum disagrees with the expected spectral shape in the absence of neutrino oscillation at 99.6% significance and prefers the distortion expected from nu (e) oscillation effects.

Observation of muon neutrino disappearance with the MINOS detectors in the NuMI neutrino beam.

This Letter reports results from the MINOS experiment based on its initial exposure to neutrinos from the Fermilab NuMI beam, finding data are consistent with nu(mu) disappearance via oscillations with |Delta(m)2/32|=2.74 +0.44/-0.74 (68% C.L.).