English

Re-evaluation of neutrino mixing pattern according to latest T2K result

High Energy Physics - Phenomenology 2012-01-20 v3 High Energy Physics - Experiment

Abstract

We re-evaluate neutrino mixing patterns according to the latest T2K result for a larger mixing angle θ13\theta_{13}, and find that the PMNS mixing matrix has larger deviations from bimaximal (BM) and tribimaximal (TB) mixing patterns than previously expected. We also find that several schemes connecting PMNS and CKM mixing matrices can accommodate the latest T2K result nicely. As necessary updates to former works, we make new triminimal expansions of PMNS mixing matrix based on BM and TB mixing patterns. We also propose a new mixing pattern with a self-complementary relation between the mixing angles θ12ν+θ13ν45\theta_{12}^{\nu} + \theta_{13}^{\nu} \simeq 45^\circ, and find such a new mixing pattern in leading order can provide a rather good description of the data.

Keywords

Cite

@article{arxiv.1106.4040,
  title  = {Re-evaluation of neutrino mixing pattern according to latest T2K result},
  author = {Ya-juan Zheng and Bo-Qiang Ma},
  journal= {arXiv preprint arXiv:1106.4040},
  year   = {2012}
}

Comments

9 latex pages, no figure, final version for journal publication