arXiv subjects

G. Balieiro Gomes

Publications and source records attributed to G. Balieiro Gomes.

2 recordsLinked to original sources

arXiv2019

Quantum Decoherence Effects in Neutrino Oscillations at DUNE

In this work we analyze quantum decoherence in neutrino oscillations considering the Open Quantum System framework and oscillations through matter for three neutrino families. Taking DUNE as a case study we performed sensitivity analyses for two neutrino flux configurations finding limits for the decoherence parameters. We also offer a physical interpretation for a new peak which arises at the $ν_{e}$ appearance probability with decoherence. The best sensitivity regions found for the decoherence parameters are $Γ_{21}\le 1.2\times10^{-23}\,\text{GeV}$ and $Γ_{32}\le 7.7\times10^{-25}\,\text{GeV}$ at $90\%$ C. L.

hep-ph↗

arXiv2017

Parameter Limits for Neutrino Oscillation with Decoherence in KamLAND

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.

hep-ph↗