Testing the solar LMA region with KamLAND data

Bandyopadhyay, Abhijit ; Choubey, Sandhya ; Goswami, Srubabati ; Gandhi, Raj ; Roy, D. P. (2003) Testing the solar LMA region with KamLAND data Journal of Physics G: Nuclear and Particle Physics, 29 (11). pp. 2465-2477. ISSN 0954-3899

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Official URL: http://iopscience.iop.org/article/10.1088/0954-389...

Related URL: http://dx.doi.org/10.1088/0954-3899/29/11/002


We investigate the potential of 3 kiloton-years (kTy) of KamLAND data to further constrain the Δm2 and tan2θ 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 Δm2 with high precision. Combining the spectrum with global solar data further tightens the constraints on allowed values of tan2θ and Δm2. 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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