Quantum decoherence effects in neutrino oscillations at DUNE

Gomes, Guilherme Balieiro; Forero, David; Guzzo, M. M.; Holanda, P. C. de; Oliveira, R. L. N.

doi:10.1103/physrevd.100.055023

Cited by 39 publications

(29 citation statements)

References 35 publications

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“…The transition probabilities, in presence of decoherence, turn out to depend explicitly on the Majorana phase. We have compared oscillations for Majorana and Dirac neutrinos adopting realistic phenomenological parameters, characteristic of some of the current experiments (IceCube DeepCore and DUNE), and taking into account the constraints on decoherence parameters [84,85]. The numerical analysis shows that the differences in the oscillation formulae for the two kinds of neutrinos, and the CP and CPT asymmetry, are, at least in principle, detectable.…”

Section: Discussionmentioning

confidence: 99%

Discerning the Nature of Neutrinos: Decoherence and Geometric Phases

et al. 2020

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We present new approaches to distinguish between Dirac and Majorana neutrinos. The first is based on the analysis of the geometric phases associated to neutrinos in matter, the second on the effects of decoherence on neutrino oscillations. In the former we compute the total and geometric phase for neutrinos, and find that they depend on the Majorana phase and on the parametrization of the mixing matrix. In the latter, we show that Majorana neutrinos might violate CPT symmetry, whereas Dirac neutrinos preserve CPT. A phenomenological analysis is also reported showing the possibility to highlight the distinctions between Dirac and Majorana neutrinos.

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Section: Discussionmentioning

confidence: 99%

Discerning the Nature of Neutrinos: Decoherence and Geometric Phases

et al. 2020

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“…Note that CPT violation might also be induced through different new physics scenarios, such as decoherence[219][220][221] or Lorentz violation[14,[222][223][224].…”

mentioning

confidence: 99%

Neutrino oscillation phenomenology in the standard model and beyond

Ternes

2020

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“…In panel (b), we plot the oscillation formula P νe→νe and ∆CP ee in the energy range (0.3 − 5)GeV which is typical of DUNE experiment [29]. We consider the time scale t = 1.49 × 10 21 GeV −1 .…”

Section: Comparison Between Dirac and Majorana Neutrinosmentioning

confidence: 99%

Revealing neutrino nature and $CPT$ violation with decoherence effects

Buoninfante,

Capolupo,

Giampaolo

et al. 2020

Preprint

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We study decoherence effects on mixing among three generations of neutrinos. We show that in presence of a non-diagonal dissipation matrix, both Dirac and Majorana neutrinos can violate the CP T symmetry and the oscillation formulae depend on the parametrization of the mixing matrix. We reveal the CP violation in the transitions preserving the flavor, for a certain form of the dissipator. In particular, the CP violation affects all the transitions in the case of Majorana neutrinos, unlike Dirac neutrinos which still preserve the CP symmetry in one of the transitions flavor preserving. This theoretical result shows that decoherence effects, if exist for neutrinos, could allow to determine the neutrino nature and to test fundamental symmetries of physics. Next long baseline experiments could allow such an analysis. We relate our study with experiments by using the characteristic parameters and the constraints on the elements of the dissipation matrix of current experiments.

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Quantum decoherence effects in neutrino oscillations at DUNE

Cited by 39 publications

References 35 publications

Discerning the Nature of Neutrinos: Decoherence and Geometric Phases

Discerning the Nature of Neutrinos: Decoherence and Geometric Phases

Neutrino oscillation phenomenology in the standard model and beyond

Revealing neutrino nature and $CPT$ violation with decoherence effects

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