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Related papers: Constructing the CKM and PMNS matrices from mixing…

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It is shown that the deconstruction of $[SU(2)\times U(1)]^N$ into $[SU(2)\times U(1)]$ is capable of providing all necessary ingredients to completely impliment the complex CKM mixing of quark flavors. The hierarchical structure of quark…

High Energy Physics - Phenomenology · Physics 2009-11-10 P. Q. Hung , A. Soddu , Ngoc-Khanh Tran

We diagonalize Majorana neutrino mass matrix with the help of PMNS matrix and obtain analytical relations between the mass matrix elements and mixing parameters, viz., three mixing angles- $\theta_{12}, \theta_{23}, \theta_{13}$ and Dirac…

High Energy Physics - Phenomenology · Physics 2019-05-21 Chandan Duarah

We discuss the relation between the CP violation of the quark mixing and that of the lepton mixing by investigating a CP violating observable, the Jarlskog invariant, as well as the CP violating Dirac phase. The down-type quark mass matrix…

High Energy Physics - Phenomenology · Physics 2019-05-01 Yusuke Shimizu , Kenta Takagi , Shunya Takahashi , Morimitsu Tanimoto

We propose that leptonic CP violation arises from a breaking of the mu-tau exchange symmetry in the neutrino mass matrix which in turn is indicated by the near maximal atmospheric neutrino mixing and the near zero \theta_{13}. We find that…

High Energy Physics - Phenomenology · Physics 2008-11-26 R. N. Mohapatra , W. Rodejohann

We constructed rephasing invariant measures of CP violation with elements of the neutrino mass matrix, in the basis in which the charged lepton mass matrix is diagonal. We discuss some examples of neutrino mass matrices with texture zeroes,…

High Energy Physics - Phenomenology · Physics 2008-11-26 Utpal Sarkar , Santosh K. Singh

We parametrize lepton mixing matrix, known as PMNS matrix, in terms of three parameters which account deviations of three mixing angles from their bi-maximal or tri-bimaximal values. On the basis of this parametrization we can determine…

High Energy Physics - Phenomenology · Physics 2015-03-27 Chandan Duarah , K. Sashikanta Singh , N. Nimai Singh

Observing the CKM matrix elements written in different parametrization schemes, one can notice obvious relations among the sine-values of the CP phases in those schemes. Using the relations, we establish a few parametrization-independent…

High Energy Physics - Phenomenology · Physics 2015-12-09 Hong-Wei Ke , Xue-Qian Li

We examine the constraints on the MNS lepton mixing matrix from the present and future experimental data of the neutrino oscillation and lepton number violation processes. We introduce a graphical representation of the CP violation phases…

High Energy Physics - Phenomenology · Physics 2014-11-17 K. Matsuda , N. Takeda , T. Fukuyama , H. Nishiura

In the context of the supersymmetric unification model in which the massless sector contains extra particles beyond those in the minimal supersymmetric standard model, we obtain mixings between quarks (leptons) and the extra particles which…

High Energy Physics - Phenomenology · Physics 2009-10-31 Takeo Matsuoka

We review the information on the CKM matrix elements, unitarity triangle and CP-violating phases $\alpha, \beta$ and $\gamma$ in the standard model which will be measured in the forthcoming experiments at B factories, HERA-B and hadron…

High Energy Physics - Phenomenology · Physics 2007-05-23 A. Ali

We point out that hints of deviations from unitarity in the first row of the CKM matrix may be explained by the presence of a single vector-like top. We study how the stringent experimental constraints arising from CP Violation in the kaon…

High Energy Physics - Phenomenology · Physics 2021-08-04 G. C. Branco , J. T. Penedo , Pedro M. F. Pereira , M. N. Rebelo , J. I. Silva-Marcos

The determination of CP violating phases in the Majorana neutrino mixing matrix using phenomenological constraints from neutrino oscillations, neutrinoless double beta decay, ($\mu^-, e^+$) conversion and few other processes is discussed.…

High Energy Physics - Phenomenology · Physics 2007-05-23 M. K. Samal

Unitarity along with precision measurements of sin2\beta, V_{us} and V_{cb} allows one to find a lower bound V_{ub}\geq 0.0035 which, on using the recently measured angle \alpha of the unitarity triangle, translates to V_{ub}= 0.0035\pm…

High Energy Physics - Phenomenology · Physics 2008-11-26 Gulsheen Ahuja , Manmohan Gupta , Sanjeev Kumar , Monika Randhawa

We discuss the implications for lepton mixing and CP violation of structure in the lepton mass matrices, for the case that neutrino masses are generated by the see-saw mechanism with an hierarchical structure for the Majorana masses. For a…

High Energy Physics - Phenomenology · Physics 2015-06-25 A. Ibarra , G. G. Ross

Starting from a new zeroth order basis for quark mixing (CKM) matrix based on the quark-lepton complementarity and the tri-bimaximal pattern of lepton mixing, we derive a triminimal parametrization of CKM matrix with three small angles and…

High Energy Physics - Phenomenology · Physics 2008-12-30 Xiao-Gang He , Shi-Wen Li , Bo-Qiang Ma

We review recent developments in models of neutrino masses and mixing. Emphases are given to models based on finite group family symmetries from which the tri-bimaximal neutrino mixing can arise. In particular, we describe one recent model…

High Energy Physics - Phenomenology · Physics 2015-03-17 Mu-Chun Chen , K. T. Mahanthappa

We consider the perturbatively modified tribimaximal (or bimaximal) mixing to estimate the (Dirac-type) CP phase in neutrino mixing matrix. The expressions for the CP phase are derived from the equivalence between the standard…

High Energy Physics - Phenomenology · Physics 2015-06-22 Sin Kyu Kang , C. S. Kim

Planned as a review of CPV in B-mesons which covered recent B-factories results these lectures appeared to be a bit wider. It is not natural to be limited by direct CPV and that in mixing in B-mesons and not to speak about the analogous…

High Energy Physics - Phenomenology · Physics 2014-11-17 M. Vysotsky

We study how to incorporate CP violation in the Froggatt--Nielsen (FN) mechanism. To this end, we introduce non-renormalizable interactions with a flavor democratic structure to the fermion mass generation sector. It is found that at least…

High Energy Physics - Phenomenology · Physics 2008-11-26 Shinya Kanemura , Koichi Matsuda , Toshihiko Ota , Serguey Petcov , Tetsuo Shindou , Eiichi Takasugi , Koji Tsumura

A nearly historical account of quark mass matrix models is given, and the structure of quark mass matrices in the Standard Model is studied. For a minimal parameter basis suggested earlier, where $M_u$ is diagonal and $M_{d11}$, $M_{d13}$,…

High Energy Physics - Phenomenology · Physics 2014-11-17 D. Falcone
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