Contrasting solar and reactor neutrinos with a non-zero value of theta13

Abstract

When solar neutrino and KamLAND data are analyzed separately one finds that, even though allowed regions of neutrino parameters overlap, the values of $\delta m^2$ and the mixing angle ${\theta }_{12}$ at the ${\chi }^2$ minima are different. We show that a non-zero, but small value of the angle ${\theta }_{13}$ can account for this behavior. From the joint analysis of solar neutrino and KamLAND data we find the best fit value of ${\sin }^{2}2{\theta }_{13}=0.01_{+0.09}^{-0.01}$.

arXiv comment6 pages of LATEX, 5 figures

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