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相关论文: A Bottom-Up Approach to Lepton Flavor and CP Symme…

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We perform a detailed study of lepton mixing patterns arising from a scenario with three Majorana neutrinos in which a discrete flavor group Gf=Delta (3 n^2) or Gf=Delta(6 n^2) and a CP symmetry are broken to residual symmetries Ge=Z3 and…

高能物理 - 唯象学 · 物理学 2015-05-20 C. Hagedorn , A. Meroni , E. Molinaro

We consider a scenario with three Majorana neutrinos in which a discrete, finite flavour group G_f is combined with a generalized CP transformation. We derive conditions for consistently defining such a setup. We show that in general lepton…

高能物理 - 唯象学 · 物理学 2013-07-03 Ferruccio Feruglio , Claudia Hagedorn , Robert Ziegler

The neutrino mass matrix has remnant CP symmetry expressed in terms of the lepton mixing matrix, and vice versa the remnant CP transformations allow us to reconstruct the mixing matrix. We study the scenario that all the four remnant CP…

高能物理 - 唯象学 · 物理学 2015-10-07 Peng Chen , Chang-Yuan Yao , Gui-Jun Ding

Assuming three generations of Majorana neutrinos, we study the different mixing patterns that arise from the non-trivial breaking of the flavor group A5 and CP to the residual symmetries Z3, Z5 or Z2 x Z2 in the charged lepton and to Z2 x…

高能物理 - 唯象学 · 物理学 2015-09-30 Andrea Di Iura , Claudia Hagedorn , Davide Meloni

We study the effects of considering nontrivial unphysical lepton sector phases on the group theoretical properties of the flavor and generalized CP symmetry elements in the case where there are three light, distinct Majorana neutrino…

高能物理 - 唯象学 · 物理学 2017-09-06 Lisa L. Everett , Alexander J. Stuart

Generalised CP transformations are the only known framework which allows to predict Majorana phases in a flavour model purely from symmetry. For the first time generalised CP transformations are investigated for an infinite series of finite…

高能物理 - 唯象学 · 物理学 2015-06-19 Stephen F. King , Thomas Neder

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 $Z_2 \times H^\nu_{\rm CP}$ symmetries in the charged lepton and neutrino…

高能物理 - 唯象学 · 物理学 2017-12-07 J. T. Penedo , S. T. Petcov , A. V. Titov

There is a wide class of models which give a dynamical description of the origin of flavour in terms of spontaneous symmetry breaking of an underlying symmetry. Many of these models exhibit sum rules which relate on the one hand mixing…

高能物理 - 唯象学 · 物理学 2016-05-30 Martin Spinrath

We construct two flavor models based on $S_4$ family symmetry and generalised CP symmetry. In both models, the $S_4$ family symmetry is broken down to the $Z^{SU}_2$ subgroup in the neutrino sector, as a consequence, the trimaximal…

高能物理 - 唯象学 · 物理学 2014-02-19 Cai-Chang Li , Gui-Jun Ding

The strategy of constraining the lepton flavor mixing from remnant CP symmetry is investigated in a rather general way. The neutrino mass matrix generally admits four remnant CP transformations which can be derived from the measured lepton…

高能物理 - 唯象学 · 物理学 2015-03-05 Peng Chen , Cai-Chang Li , Gui-Jun Ding

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

The observed leptonic mixing pattern could be explained by the presence of a discrete flavour symmetry broken into residual subgroups at low energies. In this scenario, a residual generalised CP symmetry allows the parameters of the PMNS…

高能物理 - 唯象学 · 物理学 2015-11-25 Peter Ballett , Silvia Pascoli , Jessica Turner

We explain all features of lepton and quark mixing in a scenario with the flavor symmetry Delta (384) and a CP symmetry, where these are broken in several steps. The residual symmetry in the neutrino and up quark sector is a Klein group and…

高能物理 - 唯象学 · 物理学 2019-11-12 Claudia Hagedorn , Johannes König

We discuss neutrino masses and mixing in the context of seesaw type I models with three right-handed Majorana neutrinos and an approximately diagonal Dirac sector. This ansatz is motivated by the idea that the flavor structure in the…

高能物理 - 唯象学 · 物理学 2014-06-25 Heinrich Päs , Erik Schumacher

We analyse the interplay of generalised CP transformations and the non-Abelian discrete group $T^{\prime}$ and use the semi-direct product $G_f= T^{\prime}\rtimes H_{\text{CP}}$, as family symmetry acting in the lepton sector. The family…

高能物理 - 唯象学 · 物理学 2014-05-20 Ivan Girardi , Aurora Meroni , S. T. Petcov , Martin Spinrath

We propose to understand the mixing angles and CP-violating phases from the $\Delta(48)$ family symmetry combined with the generalized CP symmetry. A model-independent analysis is performed by scanning all the possible symmetry breaking…

高能物理 - 唯象学 · 物理学 2015-02-02 Gui-Jun Ding , Ye-Ling Zhou

By assuming there exist three massive non-degenerate Majorana neutrinos, it is possible to describe neutrino mixing with a residual, unbroken discrete Klein subgroup of a larger spontaneously broken flavor symmetry group. Motivated by…

高能物理 - 唯象学 · 物理学 2024-03-28 Carlos Alvarado , Janelly Bautista , Alexander J. Stuart

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

We discussed the scenario that a discrete flavor group combined with CP symmetry is broken to $Z_2\times CP$ in both neutrino and charged lepton sectors. All lepton mixing angles and CP violation phases are predicted to depend on two free…

高能物理 - 唯象学 · 物理学 2018-04-04 Cai-Chang Li , Jun-Nan Lu , Gui-Jun Ding

We have studied two approaches to predict quark and lepton mixing patterns from the same flavor symmetry group in combination with CP symmetry. The first approach is based on the residual symmetry $Z_2$ in the charged lepton sector and…

高能物理 - 唯象学 · 物理学 2018-09-19 Jun-Nan Lu , Gui-Jun Ding
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