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Related papers: Study of leptonic CP violation

200 papers

Recently we proposed a framework for explaining the observed evidence for neutrino oscillations without enlarging the neutrino sector, by introducing CPT violating Dirac masses for the neutrinos. In this paper we continue the exploration of…

High Energy Physics - Phenomenology · Physics 2015-06-25 G. Barenboim , L. Borissov , J. Lykken

Assuming 3-neutrino mixing and massive Majorana neutrinos, we present some implications of the neutrino oscillation solutions of the solar and atmospheric neutrino problems and the results of the CHOOZ experiment for the predictions of the…

High Energy Physics - Phenomenology · Physics 2007-05-23 S. M. Bilenky , S. Pascoli , S. T. Petcov

Within the framework of three lepton families I present a transparent analytical relationship between the neutrino mixing and CP-violating parameters in vacuum and thos in matter. Such a model- and parametrization-independent result will be…

High Energy Physics - Phenomenology · Physics 2009-10-31 Zhi-zhong Xing

The two Majorana cp-violating phases can not be determined by experiments on neutrino oscillations. It is difficult even not possible almost to measure two Majorana cp-violating phases since they are only sensitive to…

High Energy Physics - Phenomenology · Physics 2024-12-02 Chao-Shang Huang

A general analysis of the consequences of including a fourth neutrino in the standard model matter content, on CP violating observables at neutrino oscillation experiments, is presented. Neutrino oscillations in vacuum and with matter…

High Energy Physics - Phenomenology · Physics 2013-03-20 D. Delepine , C. Lujan-Peschard , M. Napsuciale

In this short lecture, we discuss some basic phenomenological aspects of CP and T violation in neutrino oscillation. Using CP/T trajectory diagrams in the bi-probability space, we try to sketch out some essential features of the interplay…

High Energy Physics - Phenomenology · Physics 2009-11-10 Hisakazu Minakata , Hiroshi Nunokawa , Stephen Parke

Recent highlights in CP violation phenomena are reviewed. B-factory results imply that CP-violation phase in the CKM matrix is the dominant contributor to the observed CP violation in K and B-physics. Deviations from the predictions of the…

High Energy Physics - Phenomenology · Physics 2007-05-23 Amarjit Soni

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…

High Energy Physics - Phenomenology · Physics 2013-05-30 G. L. Fogli , E. Lisi , A. Marrone , D. Montanino , A. Palazzo , A. M. Rotunno

We stress that specific texture zeros of lepton mass matrices, which might dynamically arise from a new kind of flavor symmetry, can help us to establish simple and testable relations between the lepton flavor mixing parameters and lepton…

High Energy Physics - Phenomenology · Physics 2016-12-07 Zhi-zhong Xing

Using the seesaw mechanism, we construct a model for the light-neutrino Majorana mass matrix which yields trimaximal lepton mixing together with maximal CP violation and maximal atmospheric-neutrino mixing. We demonstrate that, in our…

High Energy Physics - Phenomenology · Physics 2010-04-21 W. Grimus , L. Lavoura

Suppose the geometrical explaination to the weak CP phase in quark sector is also valid for neutrinos, the mixing and CP violation in neutrino system are discussed. We find a larger $J_{CP}$ than $3\times 10^{-3}$ implys the large-mixing…

High Energy Physics - Phenomenology · Physics 2018-01-17 Yong Liu , Utpal Sarkar

We have investigated a possible connection between the Majorana phases and geometric parameters of leptonic unitarity triangle(LUT) in two-texture zero neutrino mass matrix. Such analytical relations can, also, be obtained for other…

High Energy Physics - Phenomenology · Physics 2018-05-23 Surender Verma , Shankita Bharadwaj

From the new existing data with not vanishing theta13 mixing angle we determine the possible shape of the Majorana neutrino mass matrix. We assume that CP symmetry is broken and all Dirac and Majorana phases are taken into account. Two…

High Energy Physics - Phenomenology · Physics 2012-04-18 Bartosz Dziewit , Sebastian Zajac , Marek Zralek

The mass term for Majorana neutrinos explicitly violates lepton number. Several authors have used this fact to create a lepton asymmetry in the universe by considering CP violating effects in the one loop self-energy correction for the…

High Energy Physics - Phenomenology · Physics 2009-10-31 Raghavan Rangarajan , Hiranmaya Mishra

We check the capability of the DUNE neutrino experiment to detect new sources of leptonic CP violation beside the single phase expected in the Standard Model. We illustrate our strategy based on the measurement of CP asymmetries in the case…

High Energy Physics - Phenomenology · Physics 2022-02-24 A. Giarnetti , D. Meloni

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…

High Energy Physics - Phenomenology · Physics 2018-05-09 Yusuke Shimizu , Kenta Takagi , Morimitsu Tanimoto

The effective Majorana mass which determines the rate of the neutrinoless double beta decay, |<m>|, is considered in the case of three-neutrino mixing and massive Majorana neutrinos. Assuming a rather precise determination of the parameters…

High Energy Physics - Phenomenology · Physics 2011-04-20 S. Pascoli , S. T. Petcov , L. Wolfenstein

We consider neutrino oscillations in the minimal Standard-Model Extension describing general Lorentz and CPT violation. Among the models without neutrino mass differences is one with two degrees of freedom that reproduces most major…

High Energy Physics - Phenomenology · Physics 2009-07-09 Alan Kostelecky , Matthew Mewes

In the minimal seesaw model, we derive required constraints on Dirac neutrino masses inducing maximal CP violation in neutrino oscillations. If the maximal atmospheric neutrino mixing is further assumed, Dirac neutrino masses are uniquely…

High Energy Physics - Phenomenology · Physics 2016-11-18 Teruyuki Kitabayashi , Masaki Yasuè

A realistic medium- or long-baseline neutrino experiment may suffer from terrestrial matter effects which are likely to contaminate the genuine T-violating asymmetry between \nu_\alpha \to \nu_\beta and \nu_\beta \to \nu_\alpha…

High Energy Physics - Phenomenology · Physics 2015-06-15 Zhi-zhong Xing