Results 121 to 130 of about 59,601 (214)

Type II See-Saw Mechanism, Deviations from Bimaximal Neutrino Mixing and Leptogenesis

, 2004
A possible interplay of both terms in the type II see-saw formula is illustrated by presenting a novel way to generate deviations from exact bimaximal neutrino mixing. In type II see-saw mechanism with dominance of the non-canonical SU(2)_L triplet term,
A. Bandyopadhyay, A. S. Joshipura, A. S. Joshipura, B. Pontecorvo, B. Pontecorvo, B. Pontecorvo, B. Pontecorvo, C. Jarlskog, G. Altarelli, G. Altarelli, G. Lazarides, G. C. Branco, G. F. Giudice, J. A. Casas, M. Gell-Mann, P. H. Frampton, R. Barbieri, S. Antusch, S. F. King, T. Ohlsson, W. Buchmüller, Werner Rodejohann, Y. Hayato, Z. Maki   +23 more
core   +1 more source

FLAVOR SYMMETRIES, NEUTRINO MASSES AND NEUTRINO MIXING

International Journal of Modern Physics A, 2008
We discuss the neutrino mixing, using the texture 0 mass matrices, which work very well for the quarks. The solar mixing angle is directly linked to the mass ratio of the first two neutrinos. The neutrino masses are hierarchical, but the mass ratios turn out to be much smaller than for quarks. The atmospheric mixing angle is 38°.
openaire   +2 more sources

Theory of neutrino slow flavor evolution. Part II. Space-time evolution of linear instabilities

Journal of High Energy Physics
Slow flavor evolution (defined as driven by neutrino masses and not necessarily “slow”) is receiving fresh attention in the context of compact astrophysical environments.
Damiano F. G. Fiorillo, Georg G. Raffelt
doaj   +1 more source

Flavour-symmetric type-II Dirac neutrino seesaw mechanism

Physics 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, J.M. Lamprea, Eduardo Peinado, Jose W.F. Valle   +3 more
doaj   +1 more source

Neutrino masses, mixing and oscillations [PDF]

Progress in Particle and Nuclear Physics, 2003
39 pages, 1 ...
openaire   +3 more sources

Terrestrial matter effects on reactor antineutrino oscillations: constant vs. fluctuated density profiles

Journal of High Energy Physics
The JUNO Collaboration has recently released its first reactor antineutrino oscillation result, achieving unprecedented precision in the measurement of ∆ m 21 2 $$ \Delta {m}_{21}^2 $$ and sin2 θ 12.
Yu-Feng Li, Andong Wang, Ya Xu, Jing-yu Zhu   +3 more
doaj   +1 more source

The effects of Majorana phases in three-generation neutrinos

, 2000
Neutrino-oscillation solutions for the atmospheric neutrino anomaly and the solar neutrino deficit can determine the texture of the neutrino mass matrix according to three types of neutrino mass hierarchies as Type A: $m_1^{} \ll m_2^{} \ll m_3 ...
Haba, N., Matsui, Y., Okamura, N.
core   +2 more sources

NEUTRINO MASS, MIXING, AND OSCILLATION [PDF]

Flavor Physics for the Millennium, 2001
Do neutrinos have nonzero masses? If they do, then these masses are very tiny, and can be sought only in very sensitive experiments. The most sensitive of these search for neutrino oscillation, a quantum interference effect which requires neutrino mass and leptonic mixing.
openaire   +2 more sources

Vertex reconstruction in the TAO experiment

Journal of High Energy Physics
The Taishan Antineutrino Observatory (TAO) is a tonne-scale gadolinium-doped liquid scintillator satellite experiment of the Jiangmen Underground Neutrino Observatory (JUNO).
Hangyu Shi, Jun Wang, Guofu Cao, Wei Wang, Yuehuan Wei   +4 more
doaj   +1 more source

Leptogenesis in an SU(5)×A5 golden ratio flavour model

Nuclear Physics B, 2015
In this paper we discuss a minor modification of a previous SU(5)×A5 flavour model which exhibits at leading order golden ratio mixing and sum rules for the heavy and the light neutrino masses.
Julia Gehrlein, Serguey T. Petcov, Martin Spinrath, Xinyi Zhang   +3 more
doaj   +1 more source