Testing the solar LMA region with KamLAND data

Details Testing the solar LMA region with KamLAND data Testing the solar LMA region with KamLAND data

2002-11-18

arxiv.org/abs/hep-ph/0211266v2

J.Phys.G29:2465-2477,2003

Physics

High Energy Physics

High Energy Physics - Phenomenology

16 pages, to appear in J Phys. G

Scientific paper

10.1088/0954-3899/29/11/002

We investigate the potential of 3 kiloTon-years(kTy) of KamLAND data to further constrain the $\Delta m^2$ and $\tan^2\theta$ values compared to those presently allowed by existing KamLAND and global solar data. We study the extent, dependence and characteristics of this sensitivity in and around the two parts of the LMA region that are currently allowed. Our analysis with 3 kTy simulated spectra shows that KamLAND spectrum data by itself can constrain $\Delta m^2$ with high precision. Combining the spectrum with global solar data further tightens the constraints on allowed values of $\tan^2\theta$ and $\Delta m^2$. We also study the effects of future neutral current data with a total error of 7% from the Sudbury Neutrino Observatory. We find that these future measurements offer the potential of considerable precision in determining the oscillation parameters (specially the mass parameter).

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