English

Probing new physics scenarios in accelerator and reactor neutrino experiments

High Energy Physics - Phenomenology 2015-05-12 v2

Abstract

We perform a detailed combined fit to the νeνe\overline \nu_e \rightarrow \overline \nu_e disappearence data of the Daya Bay experiment and the appearance νμνe\nu_{\mu} \rightarrow \nu_{e} and disappearance νμνμ\nu_{\mu} \rightarrow \nu_{\mu} data of the Tokai to Kamioka (T2K) one in the presence of two models of new physics affecting neutrino oscillations, namely a model where sterile neutrinos can propagate in a large compactified extra dimension and a model where non-standard interactions (NSI) affect the neutrino production and detection. We find that the Daya Bay \oplus T2K data combination constrains the largest radius of the compactified extra dimensions to be R0.17R\lesssim 0.17 μm\mu {\rm m} at 2σ\sigma C.L. (for the inverted ordering of the neutrino mass spectrum) and the relevant NSI parameters in the range O(103)O(102){\mathcal O}(10^{-3})-{\mathcal O}(10^{-2}), for particular choices of the charged parity violating phases.

Keywords

Cite

@article{arxiv.1411.5330,
  title  = {Probing new physics scenarios in accelerator and reactor neutrino experiments},
  author = {A. Di Iura and I. Girardi and D. Meloni},
  journal= {arXiv preprint arXiv:1411.5330},
  year   = {2015}
}

Comments

18 pages, 10 figures, 4 tables; typos corrected; matches published version