English

Looking for Lorentz invariance violation (LIV) in the latest long baseline accelerator neutrino oscillation data

High Energy Physics - Phenomenology 2023-02-22 v2 High Energy Physics - Experiment High Energy Physics - Theory

Abstract

In this paper, we have analysed the latest data from NOν\nuA and T2K with the Lorentz invariance violation along with the standard oscillation hypothesis. We have found that the NOν\nuA data cannot distinguish between the two hypotheses at 1σ1\, \sigma confidence level. T2K data and the combined data analysis excluded standard oscillation at 1σ1\, \sigma. All three cases do not have any hierarchy sensitivity when analysed with LIV. There is a mild tension between the two experiments, when analysed with LIV, as θ23\theta_{23} at \nova best-fit is at higher octant but the same for T2K is at lower octant. NOν\nuA has a new degeneracy over sin2θ23\sin^2 \theta_{23} value, when analysed with LIV.

Keywords

Cite

@article{arxiv.2103.04576,
  title  = {Looking for Lorentz invariance violation (LIV) in the latest long baseline accelerator neutrino oscillation data},
  author = {Ushak Rahaman},
  journal= {arXiv preprint arXiv:2103.04576},
  year   = {2023}
}

Comments

25 pages, 12 figures, Accepted in EPJC