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Related papers: Leptonic Unitarity Triangle and CP-violation

200 papers

If massive neutrinos are Majorana particles, then the lepton number should be violated in nature and neutrino-antineutrino oscillations $\nu^{}_\alpha \leftrightarrow \overline{\nu}^{}_\beta$ (for $\alpha, \beta = e, \mu, \tau$) will…

High Energy Physics - Phenomenology · Physics 2021-12-02 Yilin Wang , Shun Zhou

The unitarity of the lepton mixing matrix is a critical assumption underlying the standard neutrino-mixing paradigm. However, many models seeking to explain the as-yet-unknown origin of neutrino masses predict deviations from unitarity in…

High Energy Physics - Phenomenology · Physics 2020-12-16 Sebastian A. R. Ellis , Kevin J. Kelly , Shirley Weishi Li

If massive neutrinos are Majorana particles, then the lepton number should be violated and neutrino-antineutrino oscillations will take place. In this talk, we present the properties of CP violation in neutrino-antineutrino oscillations…

High Energy Physics - Phenomenology · Physics 2022-09-12 Yilin Wang , Shun Zhou

We discuss the prospects of observing leptonic CP-violation at a neutrino factory in the context of the standard three neutrino scenario. If the large mixing angle MSW effect turned out to account for the solar neutrino deficit, we show…

High Energy Physics - Phenomenology · Physics 2009-10-31 Andrea Romanino

After reviewing the general framework to study EPR-like neutrino oscillations, we derive expressions for the oscillation probabilities and a direct measure of CP violation. We compare the possibility of studying CP violation in this case…

High Energy Physics - Phenomenology · Physics 2009-10-30 M K Samal

We review the basic mechanisms of neutrino mass generation and the corresponding structure of the lepton mixing matrix. We summarize the status of three-neutrino oscillation parameters as determined from current observations, using…

High Energy Physics - Phenomenology · Physics 2009-11-13 Hiroshi Nunokawa , Stephen Parke , Jose W. F. Valle

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

We investigate physics opportunities to constraint leptonic CP-violation phase $\delta_{CP}$ through numerical analysis of working neutrino oscillation probability parameters, in the context of long base line experiments. Numerical analysis…

High Energy Physics - Phenomenology · Physics 2016-08-25 Mandip Singh

The study of CP violation in the B system allows us to perform quantitative tests of the CP symmetry in the Standard Model. Many precise measurements of the sides and angles of the Unitarity Triangle used to test the theory are made…

High Energy Physics - Experiment · Physics 2010-01-26 Gabriella Sciolla

The B-meson system provides many strategies to perform stringent tests of the Standard-Model description of CP violation. In this brief review, we discuss implications of the currently available B-factory data on the angles alpha, beta and…

High Energy Physics - Phenomenology · Physics 2010-11-23 Robert Fleischer

We reconsider the meaning of observing CP violation in neutrino oscillation.

High Energy Physics - Phenomenology · Physics 2008-11-26 Joe Sato

We study the method to test the unitarity of the lepton mixing matrix by using only the long baseline neutrino oscillation experiments, such as the combination of the T2HK experiment and the one with the $\nu_e$ beam from a future neutrino…

High Energy Physics - Phenomenology · Physics 2026-03-31 Ryuichiro Kitano , Joe Sato , Sho Sugama

Assuming the seesaw and leptogenesis mechanisms, I give some general remarks on possible connection or disconnection between CP violation in heavy Majorana neutrino decays and that in neutrino oscillations. A simple but predictive ansatz is…

High Energy Physics - Phenomenology · Physics 2009-11-07 Zhi-zhong Xing

We discuss the usefulness of the CP violating semi-leptonic asymmetry a_{SL} not only as a signal of new physics, but also as a tool in constraining the CKM parameters. We show that this technique could yield useful results in the first…

High Energy Physics - Phenomenology · Physics 2014-11-17 Robert N. Cahn , Mihir P. Worah

Several topics on CP violation in the lepton sector are reviewed. A few theoretical aspects concerning neutrino masses, leptonic mixing, and CP violation will be covered, with special emphasis on seesaw models. A discussion is provided on…

High Energy Physics - Phenomenology · Physics 2015-06-03 G. C. Branco , R. Gonzalez Felipe , F. R. Joaquim

We estimate CP violation for several experimental facilities studying neutrino oscillations. We also estimate the probability of $\nu_{\mu}$ to $\nu_{e}$ conversion, using values of the parameter $\theta_{13}$ within the known limits, in…

High Energy Physics - Phenomenology · Physics 2011-12-01 Leonard S. Kisslinger , Ernest M. Henley , Mikkel B. Johnson

We update and improve past efforts to predict the leptonic Dirac CP-violating phase with models that predict perturbatively modified tribimaximal or bimaximal mixing. Simple perturbations are applied to both mixing patterns in the form of…

High Energy Physics - Phenomenology · Physics 2022-11-23 Yang Hwan Ahn , Sin Kyu Kang , Raymundo Ramos , Morimitsu Tanimoto

If leptonic unitarity is violated by new physics at an energy scale much lower than the electroweak scale, which we call low-scale unitarity violation, it has different characteristic features from those expected in unitarity violation at…

High Energy Physics - Phenomenology · Physics 2017-03-08 Chee Sheng Fong , Hisakazu Minakata , Hiroshi Nunokawa

Leptonic \textit{CP} violation search, neutrino mass hierarchy determination, and the precision measurement of oscillation parameters for a unitary test of the leptonic mixing matrix are among the major targets of the ongoing and future…

High Energy Physics - Phenomenology · Physics 2021-07-07 S. Cao , A. Nath , T. V. Ngoc , P. T. Quyen , N. T. Hong Van , Ng. K. Francis

It is shown that one can in principle constrain the CP-violating parameter delta from measurements of four independant |V_{ij}|^2, or three of them and a ratio, in the leptonic sector. To quantify our approach, using unitarity, we derive…

High Energy Physics - Phenomenology · Physics 2009-11-11 K. R. S. Balaji , G. Couture , C. Hamzaoui