Results 1 to 10 of about 1,247,464 (271)
Trimaximal neutrino mixing from modular A4 invariance with residual symmetries [PDF]
Physics Letters B, 2019 We construct phenomenologically viable models of lepton masses and mixing based on modular A4 invariance broken to residual symmetries Z3T or Z3ST and Z2S respectively in the charged lepton and neutrino sectors. In these models the neutrino mixing matrix
P.P. Novichkov, S.T. Petcov, M. Tanimoto
doaj +2 more sources
Discrete flavour symmetries, neutrino mixing and leptonic CP violation [PDF]
European Physical Journal C: Particles and Fields, 2018 The current status of our knowledge of the 3-neutrino mixing parameters and of the CP violation in the lepton sector is summarised. The non-Abelian discrete symmetry approach to understanding the observed pattern of neutrino mixing and the related ...
S. T. Petcov
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Testing sterile neutrino mixing with present and future solar neutrino data [PDF]
European Physical Journal C: Particles and Fields, 2022 We investigate the sensitivity of solar neutrino data to mixing of sterile neutrinos with masses $$\gtrsim $$ ≳ eV. For current data, we perform a Feldman–Cousins analysis to derive a robust limit on the sterile neutrino mixing. The solar neutrino limit
Kim Goldhagen +3 more
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Trimaximal neutrino mixing from scotogenic A4 family symmetry [PDF]
Physics Letters B, 2021 We propose a flavor theory of leptons implementing an A4 family symmetry. Our scheme provides a simple way to derive trimaximal neutrino mixing from first principles, leading to simple and testable predictions for neutrino mixing and CP violation.
Gui-Jun Ding +2 more
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Neutrino mixing and leptonic CP violation from S 4 flavour and generalised CP symmetries [PDF]
Journal of High Energy Physics, 2017 We consider a class of models of neutrino mixing with S 4 lepton flavour symmetry combined with a generalised CP symmetry, which are broken to residual Z 2 and Z 2 × H CP ν symmetries in the charged lepton and neutrino sectors, respectively, H CP ν being
J.T. Penedo, S.T. Petcov, A.V. Titov
doaj +2 more sources
Assessing the viability of A4 , S4 , and A5 flavor symmetries for description of neutrino mixing [PDF]
Physical Review D, 2018 We consider the A4, S4, and A5 discrete lepton flavor symmetries in the case of 3-neutrino mixing, broken down to nontrivial residual symmetries in the charged lepton and neutrino sectors in such a way that at least one of them is a Z2.
S T Petcov
exaly +2 more sources
Neutrino mixing: A 4 variations [PDF]
Physics Letters B, 2015 In the context of the non-Abelian discrete symmetry A 4 , the neutrino mass matrix has been studied extensively. A brief update is presented to focus on the conceptual shift from tribimaximal mixing ( θ 13 = 0 , θ 23 = π / 4 , tan 2 θ 12 = 1 / 2 ) to ...
E. Ma
semanticscholar +4 more sources
Limits on the mixing of tau neutrino to heavy neutrinos
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 2002 Limits at 90 % c.l. on the square of the mixing strength |U_tau4|^2 between nu_tau and a mostly isosinglet heavy neutrino with mass in the range 10-290 MeV/c^2 are reported. The results were derived using the negative result of a search for neutral particles decaying into two electrons conducted by the CHARM collaboration in a neutrino beam dump ...
Claudio Santoni +2 more
exaly +4 more sources
Measurement of atmospheric neutrino mixing with improved IceCube DeepCore calibration and data processing [PDF]
Physical Review D, 2023 We describe a new data sample of IceCube DeepCore and report on the latest measurement of atmospheric neutrino oscillations obtained with data recorded between 2011-2019.
I. R. Abbasi +405 more
semanticscholar +1 more source
Bounds on lepton non-unitarity and heavy neutrino mixing [PDF]
Journal of High Energy Physics, 2023 We present an updated and improved global fit analysis of current flavour and electroweak precision observables to derive bounds on unitarity deviations of the leptonic mixing matrix and on the mixing of heavy neutrinos with the active flavours. This new
M. Blennow +5 more
semanticscholar +1 more source