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相关论文: Model independent Analysis of Dirac CP Violating P…

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We perform a comprehensive study of family symmetry models based on $A_4$ combined with the generalised CP symmetry $H_{\rm{CP}}$. We investigate the lepton mixing parameters which can be obtained from the original symmetry $A_4\rtimes…

高能物理 - 唯象学 · 物理学 2015-06-16 Gui-Jun Ding , Stephen F. King , Alexander J. Stuart

We phenomenologically build a neutrino mass matrix obeying $\mu-\tau$ symmetry with only two parameters, Cabibbo angle $(\lambda)$ and a flavour twister parameter $(\eta)$. For vanishing $\eta$, the model assumes TBM mixing. When…

高能物理 - 唯象学 · 物理学 2013-04-09 Subhankar Roy , N. Nimai Singh

We study a 3-3-1 model based on non-Abelian discrete symmetry group $T_{13}$ which accommodates lepton mixing with non-zero $\theta_{13}$ and CP violation phase. The neutrinos get small masses and mixing with CP violation phase from…

高能物理 - 唯象学 · 物理学 2015-08-12 V. V. Vien

We consider a class of models of neutrino mixing with $S_4$ flavour symmetry and generalised CP symmetry, broken to $Z_2$ and $Z_2 \times {\rm CP}$ residual symmetries in the charged lepton and neutrino sectors, respectively. In this…

高能物理 - 唯象学 · 物理学 2018-03-30 J. T. Penedo , S. T. Petcov , A. V. Titov

CP violation in the lepton mass matrix will be probed with good precision in upcoming experiments. The amount of CP violation present in oscillations can be quantified in numerous ways and is typically parameterized by the complex phase…

高能物理 - 唯象学 · 物理学 2021-05-20 Peter B. Denton , Rebekah Pestes

Using discrete flavour group, $A_5$, combined with generalised CP, we study the mixing parameter correlations which arise from breaking to residual symmetries in the neutrino, $G_{\nu}=\mathbb{Z}_2\times \text{CP}$, and charged lepton…

高能物理 - 唯象学 · 物理学 2015-12-23 Jessica Turner

The latest experimental progress have established three kinds of neutrino oscillations with three mixing angles measured to rather high precision. There is still one parameter, i.e., the CP violating phase, missing in the neutrino mixing…

高能物理 - 唯象学 · 物理学 2012-06-22 Xinyi Zhang , Bo-Qiang Ma

We propose two schemes for the lepton mixing matrix $U = U_l^\dagger U_\nu$, where $U = U_l$ refers to the charged sector, and $U_\nu$ denotes the neutrino diagonalization matrix. We assume $U_\nu$ to be CP conserving and its three angles…

高能物理 - 唯象学 · 物理学 2019-04-18 Peng Chen , Gui-Jun Ding , Rahul Srivastava , José W. F. Valle

In light of the recent neutrino experiment results from Daya Bay and RENO Collaborations, we study phenomenology of neutrino mixing angles in the Type III seesaw model with an discrete $A_4 \times Z_2$ symmetry, whose spontaneously breaking…

高能物理 - 唯象学 · 物理学 2015-05-27 Y. H. Ahn , C. S. Kim , Sechul Oh

Non-unitary neutrino mixing implies an extra CP violating phase that can fake the leptonic Dirac CP phase $\delta_{CP}$ of the simplest three-neutrino mixing benchmark scheme. This would hinder the possibility of probing for CP violation in…

高能物理 - 唯象学 · 物理学 2017-03-03 Shao-Feng Ge , Pedro Pasquini , M. Tortola , J. W. F. Valle

Recent data of reactor neutrino experiments set more stringent constraint on leptonic mixing patterns. We examine all possible patterns on the basis of combinations of elementary correlations of elements of leptonic mixing matrix. we obtain…

高能物理 - 唯象学 · 物理学 2016-04-28 Shu-jun Rong

We discuss the minimal seesaw model for the Dirac CP violating phase of the lepton mixing matrix. We introduce two right-handed Majorana neutrinos and obtain several textures of the tri-maximal lepton mixing matrices. Moreover, we discuss…

高能物理 - 唯象学 · 物理学 2018-05-09 Yusuke Shimizu , Kenta Takagi , Morimitsu Tanimoto

The discovery of leptonic CP violation is one of the primary goals of next-generation neutrino oscillation experiments, which is feasible due to the recent measurement of a relatively large leptonic mixing angle \theta_{13}. We suggest two…

高能物理 - 唯象学 · 物理学 2013-03-19 Tommy Ohlsson , He Zhang , Shun Zhou

Motivated by the fact that the Dirac phase in the PMNS matrix is the only CP-violating parameter in the leptonic sector that can be measured in neutrino oscillation experiments, we examine the possibility that it is the dominant source of…

高能物理 - 唯象学 · 物理学 2018-06-11 Matthew J. Dolan , Tomasz P. Dutka , Raymond R. Volkas

We study the exactly degenerate case for three lefthanded Majorana neutrinos building a general parametrization for the leptonic mixing matrix characterized by two angles and one CP violating phase and identify a weak-basis invariant…

高能物理 - 唯象学 · 物理学 2017-08-23 G. C. Branco , M. N. Rebelo , J. I. Silva-Marcos

Leptonic mixing patterns are usually extracted on the basis of groups or algebraic structures. In this paper, we introduce an alternative geometric method to study the correlations between the leptonic mixing parameters. At the 3$\sigma$…

高能物理 - 唯象学 · 物理学 2023-02-28 Ding-Hui Xu , Shu-Jun Rong

The Daya Bay Collaboration has recently reported the precise measurement of $\theta_{13}\simeq 8.8^\circ \pm 0.8^\circ $ or $\theta_{13} \neq 0$ at 5.2 \sigma level. The observed non-zero $\theta_{13}$ can be accommodated by some general…

高能物理 - 唯象学 · 物理学 2015-06-05 K. N. Deepthi , R. Mohanta

We explore generic features of the leptonic CP violation in the framework of the seesaw type I mechanism with similarity of the Dirac lepton and quarks mass matrices $m_D$. For this, we elaborate on the standard parametrization conditions…

高能物理 - 唯象学 · 物理学 2014-05-30 Basudeb Dasgupta , Alexei Yu. Smirnov

Assuming a minimal seesaw model with two heavy neutrinos (N), we examine effects of leptonic CP violation induced by approximate mu-tau symmetric interactions. As long as N is subject to the mu-tau symmetry, we can choose CP phases of Dirac…

高能物理 - 唯象学 · 物理学 2008-11-26 Teppei Baba , Masaki Yasue

We propose a scheme of lepton mixing in which the unitary matrix that diagonalizes the neutrino mass matrix is bimaximal and the deviation from bimaximal of the lepton mixing matrix is due to the unitary matrix that diagonalizes the…

高能物理 - 唯象学 · 物理学 2009-11-07 C. Giunti , M. Tanimoto