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Related papers: Leptonic Unitarity Triangles

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The precision of the neutrino oscillation parameters measurements has improved and will continue to improve as the next-generation experiments become online. Beyond the more precise measurements of the mixing angles and phases used to…

High Energy Physics - Phenomenology · Physics 2026-01-27 Mathieu Guigue , Lorenzo Restrepo

The area of the unitarity triangle is a measure of CP-violation. We introduce the leptonic unitarity triangles and study their properties. We consider the possibility of reconstructing the unitarity triangle in future oscillation and…

High Energy Physics - Phenomenology · Physics 2009-11-07 Y. Farzan , A. Yu. Smirnov

We present a geometric description of lepton flavor mixing and CP violation in matter by using the language of leptonic unitarity triangles. The exact analytical relations for both sides and inner angles are established between every…

High Energy Physics - Phenomenology · Physics 2011-09-13 He Zhang , Zhi-zhong Xing

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

Leptonic unitarity triangle (LUT) provides fundamental means to geometrically describe CP violation in neutrino oscillation. In this work, we use LUT to present a new geometrical interpretation of the vacuum oscillation probability, and…

High Energy Physics - Phenomenology · Physics 2017-02-22 Hong-Jian He , Xun-Jie Xu

Leptonic unitarity triangle (LUT) provides a geometric description of CP violations in the lepton-neutrino sector and is directly measurable in principle. In this work, we reveal that the angles in the LUT have definite physical meaning,…

High Energy Physics - Phenomenology · Physics 2014-04-02 Hong-Jian He , Xun-Jie Xu

In view of the latest T2K and MINOS observations regarding the mixing angle s_{13}, we have explored the possibility of existence of CP violation in the leptonic sector. Using hints from the construction of the 'db' unitarity triangle in…

High Energy Physics - Phenomenology · Physics 2015-06-05 Gulsheen Ahuja

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

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…

High Energy Physics - Phenomenology · Physics 2016-09-06 A. Guglielmi , M. Mezzetto , P. Migliozzi , F. Terranova

Testing the unitarity of the lepton mixing matrix, in a manner analogous to the unitarity tests of the CKM matrix in the quark sector, is an important step toward probing physics beyond the standard three-generation framework. In long…

High Energy Physics - Phenomenology · Physics 2026-05-21 Ryuichiro Kitano , Joe Sato , Sho Sugama

We determine the elements of the leptonic mixing matrix, without assuming unitarity, combining data from neutrino oscillation experiments and weak decays. To that end, we first develop a formalism for studying neutrino oscillations in…

High Energy Physics - Phenomenology · Physics 2009-11-11 S. Antusch , C. Biggio , E. Fernandez-Martinez , M. B. Gavela , J. Lopez-Pavon

We consider future experiments to detect CP violation in neutrino oscillations and discuss how to test that all asymmetries are indeed described in terms of the single leptonic Jarlskog invariant as predicted in the absence of new physics…

High Energy Physics - Phenomenology · Physics 2008-12-18 Guido Altarelli , Davide Meloni

In this paper we use an exact method to impose unitarity on moduli of the neutrino PMNS matrix recently determined, and show how one could obtain information on CP non-conservation from a limited experimental information. One suggests a…

High Energy Physics - Phenomenology · Physics 2016-08-24 Petre Dita

In this paper we use an exact method to impose unitarity on moduli of neutrino PMNS matrix recently determined, and show how one could obtain information on CP nonconservation from a limited experimental information. One suggests a novel…

High Energy Physics - Phenomenology · Physics 2011-01-27 Petre Dita

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…

High Energy Physics - Phenomenology · Physics 2016-04-08 F. J. Escrihuela , D. V. Forero , O. G. Miranda , M. Tortola , J. W. F. Valle

The field of neutrino physics has made significant progress in measuring the strength and frequency of neutrino and antineutrino oscillations in the past two decades. It is clear that the amplitudes involved in the neutrino oscillation…

High Energy Physics - Phenomenology · Physics 2026-02-09 Shu Luo

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

We present a global analysis of solar, atmospheric, reactor and accelerator neutrino data in the framework of three-neutrino oscillations based on data available in summer 2014. We provide the allowed ranges of the six oscillation…

High Energy Physics - Phenomenology · Physics 2014-12-17 M. C. Gonzalez-Garcia , Michele Maltoni , Thomas Schwetz

A low energy non-unitary leptonic mixing matrix is a generic feature of many extensions of the Standard Model. In such a case, the task of future precision neutrino oscillation experiments is more ambitious than measuring the three mixing…

High Energy Physics - Phenomenology · Physics 2009-09-02 Stefan Antusch , Mattias Blennow , Enrique Fernandez-Martinez , Jacobo Lopez-Pavon

In the light of the recent LHC data, we study precision tests sensitive to the violation of lepton universality, in particular the violation of unitarity in neutrino mixing. Keeping all data we find no satisfatory fit, even allowing for…

High Energy Physics - Phenomenology · Physics 2014-05-07 Lorenzo Basso , Oliver Fischer , Jochum J. van der Bij
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