Relation Between CPT Violation in Neutrino Masses and Mixings |
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Authors: | Bipin Singh Koranga Mohan Narayan S Uma Sankar |
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Institution: | (1) Lawrence Berkeley National Laboratory, Berkeley, CA, USA |
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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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