## Abstract

The sidereal time dependence of MiniBooNE ν_{e} and ν̄e appearance data is analyzed to search for evidence of Lorentz and CPT violation. An unbinned Kolmogorov-Smirnov (K-S) test shows both the ν_{e} and ν̄e appearance data are compatible with the null sidereal variation hypothesis to more than 5%. Using an unbinned likelihood fit with a Lorentz-violating oscillation model derived from the Standard Model Extension (SME) to describe any excess events over background, we find that the ν_{e} appearance data prefer a sidereal time-independent solution, and the ν̄e appearance data slightly prefer a sidereal time-dependent solution. Limits of order 10^{-20}GeV are placed on combinations of SME coefficients. These limits give the best limits on certain SME coefficients for ν_{μ}→ν_{e} and ν̄μ→ν̄e oscillations. The fit values and limits of combinations of SME coefficients are provided.

Original language | English (US) |
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Pages (from-to) | 1303-1308 |

Number of pages | 6 |

Journal | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics |

Volume | 718 |

Issue number | 4-5 |

DOIs | |

State | Published - Jan 29 2013 |

Externally published | Yes |

## Keywords

- Lorentz violation
- MiniBooNE
- Neutrino oscillation

## ASJC Scopus subject areas

- Nuclear and High Energy Physics