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相关论文: CP violating Tri-bimaximal-Cabibbo mixing

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Solar and atmospheric neutrino data require physics beyond the Standard Model of particle physics. The simplest, most generic, but not yet unique, interpretation of the data is in terms of neutrino oscillations. I summarize the results of…

天体物理学 · 物理学 2007-05-23 J. W. F. Valle

We propose a new parametrization for the quark and lepton mixing matrices: the two 12-mixing angles (the Cabibbo angle and the angle responsible for solar neutrino oscillations) are at zeroth order pi/12 and pi/5, respectively. The…

高能物理 - 唯象学 · 物理学 2010-04-21 Werner Rodejohann

The Daya Bay Collaboration has recently reported its first \bar{\nu}_e \to \bar{\nu}_e oscillation result which points to \theta_{13} \simeq 8.8^\circ \pm 0.8^\circ (best-fit \pm 1\sigma range) or \theta_{13} \neq 0^\circ at the 5.2\sigma…

高能物理 - 唯象学 · 物理学 2015-06-04 Zhi-zhong Xing

I argue that the observed flavor structures of leptons and quarks might imply the existence of certain flavor symmetries. The latter should be a good starting point to build realistic models towards deeper understanding of the fermion mass…

高能物理 - 唯象学 · 物理学 2008-11-26 Zhi-zhong Xing

The exact solution for the neutrino mass matrix of the Zee-Babu model is derived. Tribimaximal mixing imposes conditions on the Yukawa couplings, from which the normal mass hierarchy is preferred. The derived conditions give a possibility…

高能物理 - 唯象学 · 物理学 2014-05-08 H. N. Long , V. V. Vien

We perform a global analysis of neutrino oscillation data, including high-precision measurements of the neutrino mixing angle theta_13 at reactor experiments, which have confirmed previous indications in favor of theta_13>0. Recent data…

高能物理 - 唯象学 · 物理学 2013-05-30 G. L. Fogli , E. Lisi , A. Marrone , D. Montanino , A. Palazzo , A. M. Rotunno

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

The recent measurements of the solar neutrino mixing angle theta_{sol} and the Cabibbo mixing angle theta_C reveal a surprising relation, theta_{sol}+theta_C ~ pi/4. Interpreting this empirical relation as a support of the quark-lepton…

高能物理 - 唯象学 · 物理学 2009-11-11 Kingman Cheung , Sin Kyu Kang , C. S. Kim , Jake Lee

In this work, we have modified a scenario, originally proposed by Grimus and Lavoura, in order to obtain maximal values for atmospheric mixing angle and CP violating Dirac phase of the lepton sector. To achieve this, we have employed CP and…

高能物理 - 唯象学 · 物理学 2022-10-05 Joy Ganguly , Raghavendra Srikanth Hundi

Arguments coming from Quantum Field Theory are supplemented with a 1-loop perturbative calculation to settle the non-unitarity of mixing matrices linking renormalized mass eigenstates to bare flavor states for non-degenerate coupled…

高能物理 - 唯象学 · 物理学 2009-07-22 Quentin Duret , Bruno Machet , M. I. Vysotsky

Nonzero and relatively large of $\theta_{13}$ mixing angle has some phenomenological consequences on neutrino physics beyond the standard model. One of the consequences if the mixing angle $\theta_{13}\neq 0$ is the possibility of the CP…

高能物理 - 唯象学 · 物理学 2014-10-16 Asan Damanik

Recent data from neutrino experiments gives intriguing hints about the mass ordering, the CP violating phase and non-maximal atmospheric mixing. There seems to be a (one sigma) preference for a normal ordered (NO) neutrino mass pattern,…

高能物理 - 唯象学 · 物理学 2017-04-05 S. F. King

Inspired by the recent T2K indication of a relatively large theta_{13}, we provide a systematic study of some general modifications to three mostly discussed neutrino mixing patterns, i.e., tri-bimaximal, bimaximal and democratic mixing…

高能物理 - 唯象学 · 物理学 2011-07-06 Wei Chao , Ya-juan Zheng

After the successful determination of the reactor neutrino mixing angle \theta_13 ~ 0.16 \neq 0, a new feature suggested by the current neutrino oscillation data is a sizeable deviation of the atmospheric neutrino mixing angle \theta_23…

高能物理 - 唯象学 · 物理学 2014-01-30 David Marzocca , Serguey T. Petcov , Andrea Romanino , Maria C. Sevilla

Recently T2K gives hint in favor of large reactor angle. Most of the models, with tri-bimaximal mixing at the leading order, can not reproduce such a large mixing angle since they predict typically corrections for the reactor angle of the…

高能物理 - 唯象学 · 物理学 2011-10-18 S. Morisi , Ketan M. Patel , E. Peinado

The recent results from Daya Bay and RENO reactor neutrino experiments have firmly established that the smallest reactor mixing angle $\theta_{13}$ is non-vanishing at the $5 \sigma$ level, with a relatively large value, i.e.,…

高能物理 - 唯象学 · 物理学 2015-06-15 Srinu Gollu , K. N. Deepthi , R. Mohanta

I present the status of the elements and parameters of the Cabibbo-Kobayashi-Maskawa (CKM) matrix and summarise the related theoretical progress since "Lepton-Photon 2003". One finds |V_{us}| = 0.2227 +/- 0.0017 from K and tau decays and…

高能物理 - 唯象学 · 物理学 2009-11-11 Ulrich Nierste

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 discuss a neutrino mass matrix $\mathcal{M}_\nu$ originally found by Babu, Ma, and Valle (BMV) and show that this mass matrix can be characterized by a simple algebraic relation. From this relation it follows that atmospheric neutrino…

高能物理 - 唯象学 · 物理学 2015-06-25 W. Grimus , L. Lavoura

We consider a model based on $A_4$ symmetry to explain the phenomenon of neutrino mixing. The spontaneous symmetry breaking of $A_4$ symmetry leads to a co-bimaximal mixing matrix at leading order. We consider the effect of higher order…

高能物理 - 唯象学 · 物理学 2017-04-05 Sruthilaya M. , R. Mohanta