Results 31 to 40 of about 1,058 (119)

Searches for Violation of CPT Symmetry and Lorentz Invariance with Astrophysical Neutrinos

open access: yesUniverse, 2022
Neutrinos are a powerful tool for searching physics beyond the standard model of elementary particles. In this review, we present the status of the research on charge-parity-time (CPT) symmetry and Lorentz invariance violations using neutrinos emitted ...
Celio A. Moura, Fernando Rossi-Torres
doaj   +1 more source

Vector leptoquark $$U_3$$ U 3 and CP violation at T2K, NOvA experiments

open access: yesEuropean Physical Journal C: Particles and Fields, 2022
In the current epoch of neutrino physics, many experiments are aiming for precision measurements of oscillation parameters. Thus, various new physics scenarios which alter the neutrino oscillation probabilities in matter deserve careful investigation. In
Rudra Majhi   +3 more
doaj   +1 more source

Constraining the invisible neutrino decay with KM3NeT-ORCA

open access: yesPhysics Letters B, 2019
Several theories of particle physics beyond the Standard Model consider that neutrinos can decay. In this work we assume that the standard mechanism of neutrino oscillations is altered by the decay of the heaviest neutrino mass state into a sterile ...
P.F. de Salas   +4 more
doaj   +1 more source

Improving the global SMEFT picture with bounds on neutrino NSI

open access: yesJournal of High Energy Physics
We analyze how neutrino oscillation and coherent elastic neutrino-nucleus scattering data impact the global SMEFT fit. We first review the mapping between the SMEFT parameters and the so-called NSI framework, commonly considered in the neutrino ...
Pilar Coloma   +5 more
doaj   +1 more source

Flavour-symmetric type-II Dirac neutrino seesaw mechanism

open access: yesPhysics Letters B, 2018
We propose a Standard Model extension with underlying A4 flavour symmetry where small Dirac neutrino masses arise from a Type-II seesaw mechanism. The model predicts the “golden” flavour-dependent bottom-tau mass relation, requires an inverted neutrino ...
Cesar Bonilla   +3 more
doaj   +1 more source

Neutrino oscillations and scattering theory

open access: yesJournal of High Energy Physics
We derive the neutrino oscillation probability in vacuum using scattering theory methods developed earlier in the context of collider physics [1–3]. It is computed from Feynman diagrams that combine neutrino production and detection processes into a ...
Ilian Dobrev   +2 more
doaj   +1 more source

Dark dimension right-handed neutrinos confronted with long-baseline oscillation experiments

open access: yesJournal of High Energy Physics
Right-handed neutrinos are naturally induced by dark extra dimension models and play an essential role in neutrino oscillations. The model parameters can be examined by the long-baseline neutrino oscillation experiments.
Ai-Yu Bai   +4 more
doaj   +1 more source

Neutrino Oscillation Effects on the Luminosity of Neutrino-dominated Accretion Flows around Black Holes

open access: yesThe Astrophysical Journal
A stellar-mass black hole surrounded by the neutrino-dominated accretion flow (NDAF) has been proposed as the central engine of gamma-ray bursts. In this work, we investigate the neutrino/antineutrino luminosity and annihilation luminosity from the NDAF ...
Chitipat Deesamer   +2 more
doaj   +1 more source

Quantification of quantumness in neutrino oscillations

open access: yesEuropean Physical Journal C: Particles and Fields, 2020
Neutrino oscillation is an important physical phenomenon in elementary particle physics, and its nonclassical features can be revealed by the Leggett–Garg inequality.
Fei Ming   +4 more
doaj   +1 more source

Neutrino Oscillations and Non-standard Interactions

open access: yesFrontiers in Physics, 2018
Current neutrino experiments are measuring the neutrino mixing parameters with an unprecedented accuracy. The upcoming generation of neutrino experiments will be sensitive to subdominant neutrino oscillation effects that can in principle give information
Yasaman Farzan, Mariam Tórtola
doaj   +1 more source

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