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arXiv · 1603.04126

Parameter Limits for Neutrino Oscillation with Decoherence in KamLAND

G. Balieiro Gomes·M. M. Guzzo·P. C. de Holanda·R. L. N. Oliveira
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Abstract

In the framework of quantum open systems we analyze data from KamLAND by using a model that considers neutrino oscillation in a three-family approximation with the inclusion of the decoherence effect. Using a $χ^2$ test we find new limits for the decoherence parameter which we call $γ$, considering the most recent data by KamLAND. Assuming an energy dependence of the type $ γ= γ_0 \left( E/E_0 \right) ^n$, in 95 \% C.L. the limits found are $3.7 \times 10^{-24} GeV$ for $ n=-1$, $6.8 \times 10^{-22} GeV$ for $ n=0$, and $1.5 \times 10^{-19} GeV$ for $ n=1 $ on the energy dependence.

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G. Balieiro Gomes, M. M. Guzzo, P. C. de Holanda, R. L. N. Oliveira. 2017-04-01. Parameter Limits for Neutrino Oscillation with Decoherence in KamLAND. https://doi.org/10.1103/physrevd.95.113005

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