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相关论文: Testable Deviation from Exact Tribimaximal Mixing

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Using a recent global analysis result after the precise measurement of $\theta_ {13}$, a possible Herimtian neutrino mixing ansatz is discussed, the mixing matrix is symmetric and also symmetric with respect with the second diagonal line in…

高能物理 - 唯象学 · 物理学 2013-01-21 Wu-zhong Guo , Miao Li

In the absence of a Grand Unified Theory framework, connecting the values of the mixing parameters in the quark and lepton sector is a difficult task, unless one introduces ad-hoc relations among the matrices that diagonalize such different…

高能物理 - 唯象学 · 物理学 2024-07-03 Alessio Giarnetti , Simone Marciano , Davide Meloni

We estimate the PMNS (Pontecorvo-Maki-Nakagawa-Sakata) matrix in terms of neutrino and charged lepton mixing given as $U_{\rm PMNS}=V_{\rm lep}^\dagger(\tilde\theta_{13}) U_\nu(\tilde\theta_{23}, \tilde\theta_{12})$, based on a new…

高能物理 - 唯象学 · 物理学 2014-04-17 HoSeong La , Thomas J. Weiler

A high energy muon collider naturally produces a collimated beam of neutrinos for a fixed-target experiment at a dedicated far-forward facility. The high intensity and energy of the beam makes it ideally suited for astonishingly precise…

高能物理 - 唯象学 · 物理学 2025-12-01 David Marzocca , Francesco Montagno , Manuel Morales-Alvarado , Andrea Wulzer

Current experimental data on neutrino oscillations are consistent with the tri-bimaximal mixing. If future experimental data will determine a non-zero $V_{e3}$ and/or find CP violations in neutrino oscillations, there is the need to modify…

高能物理 - 唯象学 · 物理学 2008-11-26 Xiao-Gang He , A. Zee

The JUNO collaboration has released its first measurement of reactor neutrino oscillations results, obtaining $\sin^2\theta_{12} = 0.3092\pm 0.0087$, an improvement in precision by a factor of 1.6 over previous combined results. We confront…

高能物理 - 唯象学 · 物理学 2025-11-25 Xiao-Gang He

Neutrino masses and mixings are investigated on the basis of a universal seesaw mass matrix model, in which quark (except for top) and charged lepton mass matrices M_f and neutrino mass matrix M_\nu are given by M_f \simeq m_L M_F^{-1} m_R…

高能物理 - 唯象学 · 物理学 2009-10-30 Yoshio Koide

Neutrino oscillations are well established and the relevant parameters determined with good precision, except for the CP phase, in terms of a unitary lepton mixing matrix. Seesaw extensions of the Standard Model predict unitarity deviations…

高能物理 - 唯象学 · 物理学 2016-04-08 F. J. Escrihuela , D. V. Forero , O. G. Miranda , M. Tortola , J. W. F. Valle

We propose the lepton mixing matrix at high energy scale to be connected to quark mixing matrix by the similar transformation. The similarity between CKM and PMNS significantly narrows down the ranges in physical parameters. The condition…

高能物理 - 唯象学 · 物理学 2010-08-23 Seungsu Hwang , Kim Siyeon

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 further study a predictive model for the masses and mixing matrix of three Majorana neutrinos. At zeroth order the model yielded degenerate neutrinos and a generalized ``tribimaximal" mixing matrix. At first order the mass splitting was…

高能物理 - 唯象学 · 物理学 2014-11-21 Renata Jora , Joseph Schechter , M. Naeem Shahid

The tetra-maximal neutrino mixing pattern predicts a relatively large reactor mixing angle theta_13 \approx 8.4^\circ, which is in good agreement with the latest best-fit value theta_13 = 9^\circ. However, its prediction for theta_12…

高能物理 - 唯象学 · 物理学 2015-05-28 He Zhang , Shun Zhou

An explicit form of charged--lepton mass matrix, predicting $m_\tau = 1776.80$ MeV from the experimental values of $m_e$ and $m_\mu$ (in good agreement with the experimental figure $m_\tau = 1777.05^{+0.29}_{-0.26}$ MeV), is applied to…

高能物理 - 唯象学 · 物理学 2007-05-23 Wojciech Krolikowski

We present an analysis of normal and inverted hierarchical neutrino mass models within the framework of tri-bi-maximal (TBM) mixing. Considering the neutrinos to be quasi-degenerate (QDN), we study two different neutrino mass models with…

高能物理 - 唯象学 · 物理学 2012-11-07 Mrinal Kumar Das , Debasish Borah , Rinku Mishra

Recent neutrino oscillation data hint that the smallest neutrino mixing angle theta_{13} is possible to lie in the range 5^\circ \lesssim \theta_{13} \lesssim 12^\circ. We show that reasonable perturbations to the democratic mixing pattern,…

高能物理 - 唯象学 · 物理学 2011-01-27 Zhi-zhong Xing

We have analyzed the results of reactor and accelerator neutrino oscillation experiments in the framework of a general model with mixing of three neutrino fields and a neutrino mass hierarchy that can accommodate the results of the solar…

高能物理 - 唯象学 · 物理学 2009-10-28 S. M. Bilenky , A. Bottino , C. Giunti , C. W. Kim

Recently, the reactor mixing angle $\theta_{13}$ has been measured precisely by Daya Bay, RENO and T2K experiments with a moderately large value. However, the standard form of neutrino mixing patterns such as bimaximal, tri-bimaximal,…

高能物理 - 唯象学 · 物理学 2015-09-02 Sruthilaya M. , Soumya C. , K. N. Deepthi , R. Mohanta

We study the possibility of generating deviations from tri-bimaximal (TBM) neutrino mixing to explain the non-zero reactor mixing angle within the framework of both type I and type II seesaw mechanisms. The type I seesaw term gives rise to…

高能物理 - 唯象学 · 物理学 2013-09-24 Debasish Borah

The measurements of the parameters of the neutrino mixing matrix in the present and future neutrino oscillation experiments at accelerators are presented. The perspectives for high intensity new neutrino facilities as SuperBeams, BetaBeams…

高能物理 - 唯象学 · 物理学 2016-09-06 A. Guglielmi , M. Mezzetto , P. Migliozzi , F. Terranova

Hermitian squared mass matrices of charged leptons and light neutrinos in the flavor basis are studied under general additive lowest order perturbations away from the tribimaximal (TBM) limit in which a weak basis with mass diagonal charged…

高能物理 - 唯象学 · 物理学 2015-11-25 Biswajoy Brahmachari , Probir Roy