Typically in these models, spontaneous Lorentz violation is caused by the presence of a potential term in the action.
The overwhelming majority of experimental searches for Lorentz violation have yielded negative results.
This makes predictions of possible Lorentz violations very complicated.
In some cases, other suppression mechanisms could mask large Lorentz violations.
It has therefore proven to be a remarkable tool in the search for Lorentz violation across the landscape of experimental physics.
Their data, taken over a two-year period, showed no evidence for Lorentz violation.
However, if Lorentz violation occurs, oscillations could be due to other mechanisms.
This anomaly can be understood in the presence of Lorentz violation.
This is a hybrid model that includes Lorentz violation and neutrino masses.
It involves four types of coefficients for Lorentz violation.