English

Constraints on Neutrino Parameters from Neutral-Current Solar Neutrino Measurements

High Energy Physics - Phenomenology 2009-11-10 v2 Nuclear Theory

Abstract

We generalize the pull approach to define the χ2\chi^2 function to the analysis of the data with correlated statistical errors. We apply this method to the analysis of the Sudbury Neutrino Collaboration data obtained in the salt-phase. In the global analysis of all the solar neutrino and KamLAND data we find the best fit (minimum χ2\chi^2) values of neutrino parameters to be tan2θ120.42\tan^2 \theta_{12} \sim 0.42 and δm1227.1×105\delta m_{12}^2 \sim 7.1 \times 10^{-5} eV2^2. We confirm that the maximal mixing is strongly disfavored while the bounds on δm122\delta m_{12}^2 are significantly strengthened.

Keywords

Cite

@article{arxiv.hep-ph/0309079,
  title  = {Constraints on Neutrino Parameters from Neutral-Current Solar Neutrino Measurements},
  author = {A. B. Balantekin and H. Yuksel},
  journal= {arXiv preprint arXiv:hep-ph/0309079},
  year   = {2009}
}

Comments

6 figures. Some typos are corrected, figures are visually improved