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We explore the theoretical constraints on the observable parameters of neutrino mixing on predictions for the leptonic Dirac CP-violating phase within a well-studied class of simple theoretical models that includes a single source of CP…

高能物理 - 唯象学 · 物理学 2022-10-06 Lisa L. Everett , Raymundo Ramos , Ariel B. Rock , Alexander J. Stuart

We consider future experiments to detect CP violation in neutrino oscillations and discuss how to test that all asymmetries are indeed described in terms of the single leptonic Jarlskog invariant as predicted in the absence of new physics…

高能物理 - 唯象学 · 物理学 2008-12-18 Guido Altarelli , Davide Meloni

We uncover an interesting phenomenon that neutrino flavor transformation in slowly varying matter density imitates almost exactly that of vacuum neutrino oscillation under suitably chosen experimental parameters. It allows us to have…

高能物理 - 唯象学 · 物理学 2009-10-31 Hisakazu Minakata , Hiroshi Nunokawa

The $CP$ violation in the neutrino transition electromagnetic dipole moment is discussed in the context of the Standard Model with an arbitrary number of right-handed singlet neutrinos. A full one-loop calculation of the neutrino…

高能物理 - 唯象学 · 物理学 2020-12-29 Shyam Balaji , Maura Ramirez-Quezada , Ye-Ling Zhou

In this short lecture, we discuss some basic phenomenological aspects of CP and T violation in neutrino oscillation. Using CP/T trajectory diagrams in the bi-probability space, we try to sketch out some essential features of the interplay…

高能物理 - 唯象学 · 物理学 2009-11-10 Hisakazu Minakata , Hiroshi Nunokawa , Stephen Parke

Measurements of CP--violating observables in neutrino oscillation experiments have been studied in the literature as a way to determine the CP--violating phase in the mixing matrix for leptons. Here we show that such observables also probe…

高能物理 - 唯象学 · 物理学 2010-05-28 M. C. Gonzalez-Garcia , Y. Grossman , A. Gusso , Y. Nir

One of the major open questions in the neutrino sector is the issue of leptonic CP violation. Current global oscillation data shows a mild preference for a large, potentially maximal value for the Dirac CP phase in the neutrino mixing…

高能物理 - 唯象学 · 物理学 2016-07-20 David V. Forero , Patrick Huber

The model of neutrino mass matrix with minimal texture is now tightly constrained by experiment so that it can yield a prediction for the phase of CP violation. This phase is predicted to lie in the range $\delta_{CP}=0.77\pi - 1.24\pi$. If…

高能物理 - 唯象学 · 物理学 2017-01-04 Masataka Fukugita , Yuya Kaneta , Yusuke Shimizu , Morimitsu Tanimoto , Tsutomu T. Yanagida

The CP violation required in leptogenesis may have different origin, but in an effective theory they all are related to the rephasing invariant CP violating measure in the mixing matrix of the leptonic sector. We point out that the maximum…

高能物理 - 唯象学 · 物理学 2011-09-16 Yong Liu , Utpal Sarkar

The manifestation of CP, T violation in the leptonic sector is studied for flavour neutrino oscillations, both in vacuum and in matter. Different conditions of short-base-line versus long-base-line experiments are discussed.

高能物理 - 唯象学 · 物理学 2007-05-23 J. Bernabeu

The current status of our knowledge of the 3-neutrino mixing parameters and of the CP violation in the lepton sector is summarised. The discrete symmetry approach to understanding the observed pattern of neutrino mixing and the related…

高能物理 - 唯象学 · 物理学 2018-09-26 S. T. Petcov

We propose a phenomenological model of lepton mixing and CP violation based on the flavor democracy of charge leptons and the mass degeneracy of neutrinos. A nearly bi-maximal flavor mixing pattern, which is favored by current data on…

高能物理 - 唯象学 · 物理学 2007-05-23 Harald Fritzsch , Zhi-zhong Xing

We discuss a simple model of lepton mixing and CP violation based on the flavor democracy of charge leptons and the mass degeneracy of neutrinos. A nearly bi-maximal flavor mixing pattern, which is favored by current data on atmospheric and…

高能物理 - 唯象学 · 物理学 2007-05-23 Harald Fritzsch , Zhi-zhong Xing

We discuss leptonic mixing and CP violation at low and high energies, emphasizing possible connections between leptogenesis and CP violation at low energies, in the context of lepton flavour models. Furthermore we analyse weak basis…

高能物理 - 唯象学 · 物理学 2009-11-10 Gustavo C. Branco , M. N. Rebelo

We prove that, in any flavor transition, neutrino oscillation CP violating asymmetries in matter have two disentangled components: (a) a CPT-odd T-invariant term, non-vanishing iff there are interactions with matter; (b) a T-odd…

高能物理 - 唯象学 · 物理学 2020-12-30 Alejandro Segarra , Jose Bernabeu

The detection of CP violation in neutrino oscillations is one of the most important goals of the next generation of neutrino experiments. Here we study the detectability of the CP-violating phase in the oscillation of atmospheric neutrinos.…

高能物理 - 实验 · 物理学 2026-04-16 Thilo Birkenfeld , Achim Stahl

I introduce a simple phenomenological model of lepton flavor mixing and CP violation based on the flavor democracy of charged leptons and the mass degeneracy of neutrinos. The nearly bi-maximal mixing pattern, which can interpret current…

高能物理 - 唯象学 · 物理学 2009-10-31 Zhi-zhong Xing

Flavour oscillations of sub-GeV atmospheric neutrinos and antineutrinos, traversing different distances inside the Earth, are a promising source of information on the leptonic CP phase $\delta$. In that energy range, the oscillations are…

高能物理 - 唯象学 · 物理学 2020-12-02 Ara Ioannisian , Stefan Pokorski , Janusz Rosiek , Michal Ryczkowski

We propose a phenomenological model of lepton mixing and CP violation based on the flavor democracy of charge leptons and the mass degeneracy of neutrinos. A nearly bi-maximal flavor mixing pattern, which is favored by current data on…

高能物理 - 唯象学 · 物理学 2009-10-31 Harald Fritzsch , Zhi-zhong Xing

We discuss the use of the CP asymmetry parameter (Acp) as a possible observable of CP violation in the leptonic sector. In order to do this, we study for a wide range of values of L/E the behavior of this asymmetry for the corresponding…

高能物理 - 唯象学 · 物理学 2009-10-31 A. M. Gago , V. Pleitez , R. Zukanovich Funchal
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