Resonance refraction and neutrino oscillations

Smirnov, Alexei Y.; Valera, Victor B.

doi:10.48550/arxiv.2106.13829

Cited by 3 publications

(3 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For small the resonance is at low observable energies [20]. At the potential converges to the Wolfenstein limit.…”

Section: Alexei Y Smirnovmentioning

confidence: 94%

Neutrino oscillations unlocked

Smirnov¹

2022

Proceedings of Neutrino Oscillation Workshop — PoS(NOW2022)

View full text Add to dashboard Cite

Space-time localization diagrams "unlock" subtle aspects of oscillations such as coherence, entanglement, etc. Observability of propagation decoherence in oscillating neutrino state is discussed. The sizes of WPs of reactor and source neutrinos are estimated and it is shown that damping effect due to decoherence is negligible. Among topics of interest are transition from microscopic to macroscopic description of matter effects, oscillations in non-linear generalization of Quantum Mechanics, influence of complex structure of vacuum, in particular, possible presence of cosmic strings and domain walls on oscillations, neutrino oscillations driven by the effective neutrino masses generated via refraction on very light dark matter particles.

show abstract

“…For small the resonance is at low observable energies [20]. At the potential converges to the Wolfenstein limit.…”

Section: Alexei Y Smirnovmentioning

confidence: 94%

Neutrino oscillations unlocked

Smirnov¹

2022

Proceedings of Neutrino Oscillation Workshop — PoS(NOW2022)

View full text Add to dashboard Cite

show abstract

“…There have been many attempts to connect the mentioned two mysterious sectors, i.e., neutrinos and ultralight DM [17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35]. In this work, we investigate 0νββ decays in the presence of a coupling between neutrinos and the ultralight DM with a general mass spanning from 10 −22 eV to sub-eV.…”

Section: Introductionmentioning

confidence: 99%

Neutrino meets ultralight dark matter: $\boldsymbol{0νββ}$ decay and cosmology

Huang,

Nath

2021

Preprint

View full text Add to dashboard Cite

We explore the neutrinoless double beta (0νββ) decay induced by an ultralight dark matter field coupled to neutrinos. The effect on 0νββ decay is significant if the coupling violates the lepton number, for which the ∆L = 2 transition is directly driven by the dark matter field without further suppression of small neutrino masses. As the ultralight dark matter can be well described by a classical field, the effect features a periodic modulation pattern in decay events. However, we find that in the early Universe such coupling will be very likely to alter the standard cosmological results. In particular, the requirement of neutrino free-streaming before the matter-radiation equality severely constrains the parameter space, such that the future 0νββ decay experiments can hardly see any signal even with a meV sensitivity to the effective neutrino mass.I.

show abstract

“…The ultralight field can be treated as a classical one, and the neutrino dispersion relation is affected simply by assigning an expectation value to the dark field in the Lagrangian. Modified neutrino oscillations in such scenarios have been discussed in detail in the literature [16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33]; • coherent forward scattering of neutrinos with light dark matter particles, which could be scalar or vector, the so-called "dark NSI" [34]. In this case, it is the elastic scattering of the neutrino wave function off the dark matter grid which changes the dispersion relation.…”

Section: Introductionmentioning

confidence: 99%

Tritium beta decay with modified neutrino dispersion relations: KATRIN in the dark sea

Huang¹,

Rodejohann²

2021

Preprint

View full text Add to dashboard Cite

We discuss beta decays in a dark background field, which could be formed by dark matter, dark energy or a fifth force potential. In such scenarios, the neutrino's dispersion relation will be modified by its collective interaction with the dark field, which can have observable consequences in experiments using tritium beta decays to determine the absolute neutrino mass. Among the most general interaction forms, the (pseudo)scalar and (axial-)vector ones are found to have interesting effects on the spectrum of beta decays. In particular, the vector and axial-vector potentials can induce distinct signatures by shifting the overall electron energy scale, possibly beyond the usually defined endpoint. The scalar and pseudoscalar potentials are able to mimic a neutrino mass beyond the cosmological bounds. We have placed stringent constraints on the dark potentials based on the available experimental data of KATRIN, and the sensitivity of future KATRIN runs is also discussed.

show abstract

Resonance refraction and neutrino oscillations

Cited by 3 publications

References 31 publications

Neutrino oscillations unlocked

Neutrino oscillations unlocked

Neutrino meets ultralight dark matter: $\boldsymbol{0νββ}$ decay and cosmology

Tritium beta decay with modified neutrino dispersion relations: KATRIN in the dark sea

Contact Info

Product

Resources

About