Abstract
The neutrino parameters determined from the solar neutrino data and the anti-neutrino parameters determined from KamLAND reactor experiment are in good agreement with each other. However, the best fit points of the two sets differ from each other by about 10−5 eV2 in mass-square difference and by about 2° in the mixing angle. Future solar neutrino and reactor anti-neutrino experiments are likely to reduce the uncertainties in these measurements. This, in turn, can lead to a signal for CPT violation in terms a non-zero difference between neutrino and anti-neutrino parameters. In this paper, we propose a CPT violating mass matrix which can give rise to the above differences in both mass-squared difference and mixing angle and study the constraints imposed by the data on the parameters of the mass matrix.
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Koranga, B.S., Narayan, M. & Sankar, S.U. Relation Between CPT Violation in Neutrino Masses and Mixings. Int J Theor Phys 50, 760–766 (2011). https://doi.org/10.1007/s10773-010-0612-y
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DOI: https://doi.org/10.1007/s10773-010-0612-y